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Ralf S. Engelschall 已提交
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 OpenSSL CHANGES
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 _______________

5
 Changes between 1.0.2 and 1.1.0  [xx XXX xxxx]
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Dr. Stephen Henson 已提交
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Matt Caswell 已提交
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  *) State machine rewrite. The state machine code has been significantly
     refactored in order to remove much duplication of code and solve issues
     with the old code (see ssl/statem/README for further details). This change
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Matt Caswell 已提交
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     does have some associated API changes. Notably the SSL_state() function
     has been removed and replaced by SSL_get_state which now returns an
     "OSSL_HANDSHAKE_STATE" instead of an int. SSL_set_state() has been removed
     altogether. The previous handshake states defined in ssl.h and ssl3.h have
     been redefined to be the nearest equivalent OSS_HANDSHAKE_STATE value. Not
     all states have an equivalent value, (e.g. SSL_ST_CW_FLUSH). New
     application code should not use the old handshake state values, but should
     instead use OSSL_HANDSHAKE_STATE.
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Matt Caswell 已提交
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     [Matt Caswell]

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Rich Salz 已提交
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  *) The demo files in crypto/threads were moved to demo/threads.
     [Rich Salz]

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Matt Caswell 已提交
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  *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron and sureware.
     [Matt Caswell]

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Dr. Stephen Henson 已提交
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  *) New ASN.1 embed macro.

     New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the
     structure is not allocated: it is part of the parent. That is instead of

     FOO *x;

     it must be:

     FOO x;

     This reduces memory fragmentation and make it impossible to accidentally
     set a mandatory field to NULL.

     This currently only works for some fields specifically a SEQUENCE, CHOICE,
     or ASN1_STRING type which is part of a parent SEQUENCE. Since it is
     equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or
     SEQUENCE OF.
     [Steve Henson]

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Emilia Kasper 已提交
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  *) Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled.
     [Emilia Käsper]
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Dr. Stephen Henson 已提交
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  *) Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although
     in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also
     an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add
     DES and RC4 ciphersuites.
     [Matt Caswell]

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Emilia Kasper 已提交
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  *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
     This changes the decoding behaviour for some invalid messages,
     though the change is mostly in the more lenient direction, and
     legacy behaviour is preserved as much as possible.
     [Emilia Käsper]
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David Woodhouse 已提交
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  *) Fix no-stdio build.
    [ David Woodhouse <David.Woodhouse@intel.com> and also
      Ivan Nestlerode <ivan.nestlerode@sonos.com> ]
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Matt Caswell 已提交
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  *) New testing framework
     The testing framework has been largely rewritten and is now using
     perl and the perl modules Test::Harness and an extended variant of
     Test::More called OpenSSL::Test to do its work.  All test scripts in
     test/ have been rewritten into test recipes, and all direct calls to
     executables in test/Makefile have become individual recipes using the
     simplified testing OpenSSL::Test::Simple.

     For documentation on our testing modules, do:

        perldoc test/testlib/OpenSSL/Test/Simple.pm
        perldoc test/testlib/OpenSSL/Test.pm

     [Richard Levitte]

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  *) In DSA_generate_parameters_ex, if the provided seed is too short,
     return an error
     [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]

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Dr. Stephen Henson 已提交
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  *) Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites
     from RFC4279, RFC4785, RFC5487, RFC5489.

     Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the
     original RSA_PSK patch.
     [Steve Henson]

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  *) Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay
     era flag was never set throughout the codebase (only read). Also removed
     SSL3_FLAGS_POP_BUFFER which was only used if
     SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set.
     [Matt Caswell]

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Richard Levitte 已提交
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  *) Changed the default name options in the "ca", "crl", "req" and "x509"
     to be "oneline" instead of "compat".
     [Richard Levitte]

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  *) Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're
     not aware of clients that still exhibit this bug, and the workaround
     hasn't been working properly for a while.
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     [Emilia Käsper]
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  *) The return type of BIO_number_read() and BIO_number_written() as well as
     the corresponding num_read and num_write members in the BIO structure has
     changed from unsigned long to uint64_t. On platforms where an unsigned
     long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is
     transferred.
     [Matt Caswell]

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  *) Given the pervasive nature of TLS extensions it is inadvisable to run
     OpenSSL without support for them. It also means that maintaining
     the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably
     not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed.
     [Matt Caswell]
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  *) Removed support for the two export grade static DH ciphersuites
     EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites
     were newly added (along with a number of other static DH ciphersuites) to
     1.0.2. However the two export ones have *never* worked since they were
     introduced. It seems strange in any case to be adding new export
     ciphersuites, and given "logjam" it also does not seem correct to fix them.
     [Matt Caswell]

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  *) Version negotiation has been rewritten. In particular SSLv23_method(),
     SSLv23_client_method() and SSLv23_server_method() have been deprecated,
     and turned into macros which simply call the new preferred function names
     TLS_method(), TLS_client_method() and TLS_server_method(). All new code
     should use the new names instead. Also as part of this change the ssl23.h
     header file has been removed.
     [Matt Caswell]

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  *) Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This
     code and the associated standard is no longer considered fit-for-purpose.
     [Matt Caswell]
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Dr. Stephen Henson 已提交
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  *) RT2547 was closed.  When generating a private key, try to make the
     output file readable only by the owner.  This behavior change might
     be noticeable when interacting with other software.

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Rich Salz 已提交
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  *) Added HTTP GET support to the ocsp command.
     [Rich Salz]

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  *) RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead.
     [Matt Caswell]
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Matt Caswell 已提交
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Dr. Stephen Henson 已提交
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  *) Added support for TLS extended master secret from
     draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an
     initial patch which was a great help during development.
     [Steve Henson]

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  *) All libssl internal structures have been removed from the public header
     files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is
     now redundant). Users should not attempt to access internal structures
     directly. Instead they should use the provided API functions.
     [Matt Caswell]
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Rob Stradling 已提交
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  *) config has been changed so that by default OPENSSL_NO_DEPRECATED is used.
     Access to deprecated functions can be re-enabled by running config with
     "enable-deprecated". In addition applications wishing to use deprecated
     functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour
     will, by default, disable some transitive includes that previously existed
     in the header files (e.g. ec.h will no longer, by default, include bn.h)
     [Matt Caswell]

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Matt Caswell 已提交
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  *) Added support for OCB mode. OpenSSL has been granted a patent license
     compatible with the OpenSSL license for use of OCB. Details are available
     at https://www.openssl.org/docs/misc/OCB-patent-grant-OpenSSL.pdf. Support
     for OCB can be removed by calling config with no-ocb.
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     [Matt Caswell]
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Matt Caswell 已提交
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  *) SSLv2 support has been removed.  It still supports receiving a SSLv2
     compatible client hello.
     [Kurt Roeckx]

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  *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz],
     done while fixing the error code for the key-too-small case.
     [Annie Yousar <a.yousar@informatik.hu-berlin.de>]

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Rich Salz 已提交
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  *) CA.sh has been removmed; use CA.pl instead.
     [Rich Salz]

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Rich Salz 已提交
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  *) Removed old DES API.
     [Rich Salz]

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Rich Salz 已提交
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  *) Remove various unsupported platforms:
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        Sony NEWS4
        BEOS and BEOS_R5
        NeXT
        SUNOS
        MPE/iX
        Sinix/ReliantUNIX RM400
        DGUX
        NCR
        Tandem
        Cray
        16-bit platforms such as WIN16
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Rich Salz 已提交
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     [Rich Salz]

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  *) Clean up OPENSSL_NO_xxx #define's
        Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF
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        Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx
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        OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC
        OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160
        OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO
        Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY
        OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP
        OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK
        OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY
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        Remove MS_STATIC; it's a relic from platforms <32 bits.
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Rich Salz 已提交
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     [Rich Salz]

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  *) Cleaned up dead code
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        Remove all but one '#ifdef undef' which is to be looked at.
     [Rich Salz]

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Rich Salz 已提交
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  *) Clean up calling of xxx_free routines.
        Just like free(), fix most of the xxx_free routines to accept
        NULL.  Remove the non-null checks from callers.  Save much code.
     [Rich Salz]

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Rich Salz 已提交
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  *) Add secure heap for storage of private keys (when possible).
     Add BIO_s_secmem(), CBIGNUM, etc.
     Contributed by Akamai Technologies under our Corporate CLA.
     [Rich Salz]

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Ben Laurie 已提交
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  *) Experimental support for a new, fast, unbiased prime candidate generator,
     bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
     [Felix Laurie von Massenbach <felix@erbridge.co.uk>]

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  *) New output format NSS in the sess_id command line tool. This allows
     exporting the session id and the master key in NSS keylog format.
     [Martin Kaiser <martin@kaiser.cx>]

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mancha 已提交
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  *) Harmonize version and its documentation. -f flag is used to display
     compilation flags.
     [mancha <mancha1@zoho.com>]

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mancha 已提交
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  *) Fix eckey_priv_encode so it immediately returns an error upon a failure
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     in i2d_ECPrivateKey.  Thanks to Ted Unangst for feedback on this issue.
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mancha 已提交
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     [mancha <mancha1@zoho.com>]

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Ben Laurie 已提交
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  *) Fix some double frees. These are not thought to be exploitable.
     [mancha <mancha1@zoho.com>]

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  *) A missing bounds check in the handling of the TLS heartbeat extension
     can be used to reveal up to 64k of memory to a connected client or
     server.

     Thanks for Neel Mehta of Google Security for discovering this bug and to
     Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
     preparing the fix (CVE-2014-0160)
     [Adam Langley, Bodo Moeller]

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Dr. Stephen Henson 已提交
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  *) Fix for the attack described in the paper "Recovering OpenSSL
     ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
     by Yuval Yarom and Naomi Benger. Details can be obtained from:
     http://eprint.iacr.org/2014/140

     Thanks to Yuval Yarom and Naomi Benger for discovering this
     flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
     [Yuval Yarom and Naomi Benger]

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  *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
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     this fixes a limitation in previous versions of OpenSSL.
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     [Steve Henson]

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  *) Experimental encrypt-then-mac support.
    
     Experimental support for encrypt then mac from
     draft-gutmann-tls-encrypt-then-mac-02.txt
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Dr. Stephen Henson 已提交
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Dr. Stephen Henson 已提交
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     To enable it set the appropriate extension number (0x42 for the test
     server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
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Dr. Stephen Henson 已提交
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     For non-compliant peers (i.e. just about everything) this should have no
     effect.

     WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
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Dr. Stephen Henson 已提交
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     [Steve Henson]

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  *) Add EVP support for key wrapping algorithms, to avoid problems with
     existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
     the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
     algorithms and include tests cases.
     [Steve Henson]

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Dr. Stephen Henson 已提交
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  *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
     enveloped data.
     [Steve Henson]

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Dr. Stephen Henson 已提交
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  *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
     MGF1 digest and OAEP label.
     [Steve Henson]

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Ben Laurie 已提交
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  *) Make openssl verify return errors.
     [Chris Palmer <palmer@google.com> and Ben Laurie]

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  *) New function ASN1_TIME_diff to calculate the difference between two
     ASN1_TIME structures or one structure and the current time.
     [Steve Henson]

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  *) Update fips_test_suite to support multiple command line options. New
     test to induce all self test errors in sequence and check expected
     failures.
     [Steve Henson]

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  *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
     sign or verify all in one operation.
     [Steve Henson]

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  *) Add fips_algvs: a multicall fips utility incorporating all the algorithm
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     test programs and fips_test_suite. Includes functionality to parse
     the minimal script output of fipsalgest.pl directly.
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     [Steve Henson]
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  *) Add authorisation parameter to FIPS_module_mode_set().
     [Steve Henson]

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  *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
     [Steve Henson]

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  *) Use separate DRBG fields for internal and external flags. New function
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     FIPS_drbg_health_check() to perform on demand health checking. Add
     generation tests to fips_test_suite with reduced health check interval to 
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     demonstrate periodic health checking. Add "nodh" option to
     fips_test_suite to skip very slow DH test.
     [Steve Henson]

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  *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
     based on NID.
     [Steve Henson]

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  *) More extensive health check for DRBG checking many more failure modes.
     New function FIPS_selftest_drbg_all() to handle every possible DRBG
     combination: call this in fips_test_suite.
     [Steve Henson]

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  *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
     and POST to handle Dual EC cases.
     [Steve Henson]

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  *) Add support for canonical generation of DSA parameter 'g'. See 
     FIPS 186-3 A.2.3.

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  *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
     POST to handle HMAC cases.
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Dr. Stephen Henson 已提交
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     [Steve Henson]

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  *) Add functions FIPS_module_version() and FIPS_module_version_text()
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Jeff Walton 已提交
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     to return numerical and string versions of the FIPS module number.
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     [Steve Henson]

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  *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
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Jeff Walton 已提交
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     FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
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     outside the validated module in the FIPS capable OpenSSL.
     [Steve Henson]

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  *) Minor change to DRBG entropy callback semantics. In some cases
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Jeff Walton 已提交
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     there is no multiple of the block length between min_len and
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     max_len. Allow the callback to return more than max_len bytes
     of entropy but discard any extra: it is the callback's responsibility
     to ensure that the extra data discarded does not impact the
     requested amount of entropy.
     [Steve Henson]

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  *) Add PRNG security strength checks to RSA, DSA and ECDSA using 
     information in FIPS186-3, SP800-57 and SP800-131A.
     [Steve Henson]

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  *) CCM support via EVP. Interface is very similar to GCM case except we
     must supply all data in one chunk (i.e. no update, final) and the
     message length must be supplied if AAD is used. Add algorithm test
     support.
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     [Steve Henson]

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  *) Initial version of POST overhaul. Add POST callback to allow the status
     of POST to be monitored and/or failures induced. Modify fips_test_suite
     to use callback. Always run all selftests even if one fails.
     [Steve Henson]

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  *) XTS support including algorithm test driver in the fips_gcmtest program.
     Note: this does increase the maximum key length from 32 to 64 bytes but
     there should be no binary compatibility issues as existing applications
     will never use XTS mode.
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     [Steve Henson]

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  *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
     to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
     performs algorithm blocking for unapproved PRNG types. Also do not
     set PRNG type in FIPS_mode_set(): leave this to the application.
     Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
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Dr. Stephen Henson 已提交
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     the standard OpenSSL PRNG: set additional data to a date time vector.
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     [Steve Henson]

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  *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
     This shouldn't present any incompatibility problems because applications
     shouldn't be using these directly and any that are will need to rethink
     anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
     [Steve Henson]

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  *) Extensive self tests and health checking required by SP800-90 DRBG.
     Remove strength parameter from FIPS_drbg_instantiate and always
     instantiate at maximum supported strength.
     [Steve Henson]

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  *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
     [Steve Henson]

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  *) New algorithm test program fips_dhvs to handle DH primitives only testing.
     [Steve Henson]

  *) New function DH_compute_key_padded() to compute a DH key and pad with
     leading zeroes if needed: this complies with SP800-56A et al.
     [Steve Henson]

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  *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
     anything, incomplete, subject to change and largely untested at present.
     [Steve Henson]

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  *) Modify fipscanisteronly build option to only build the necessary object
     files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
     [Steve Henson]

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  *) Add experimental option FIPSSYMS to give all symbols in
     fipscanister.o and FIPS or fips prefix. This will avoid
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     conflicts with future versions of OpenSSL. Add perl script
     util/fipsas.pl to preprocess assembly language source files
     and rename any affected symbols.
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     [Steve Henson]

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  *) Add selftest checks and algorithm block of non-fips algorithms in
     FIPS mode. Remove DES2 from selftests.
     [Steve Henson]

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  *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
     return internal method without any ENGINE dependencies. Add new
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     tiny fips sign and verify functions.
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     [Steve Henson]

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  *) New build option no-ec2m to disable characteristic 2 code.
     [Steve Henson]

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  *) New build option "fipscanisteronly". This only builds fipscanister.o
     and (currently) associated fips utilities. Uses the file Makefile.fips
     instead of Makefile.org as the prototype.
     [Steve Henson]

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  *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
     Update fips_gcmtest to use IV generator.
     [Steve Henson]

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  *) Initial, experimental EVP support for AES-GCM. AAD can be input by
     setting output buffer to NULL. The *Final function must be
     called although it will not retrieve any additional data. The tag
     can be set or retrieved with a ctrl. The IV length is by default 12
     bytes (96 bits) but can be set to an alternative value. If the IV
     length exceeds the maximum IV length (currently 16 bytes) it cannot be
     set before the key. 
     [Steve Henson]

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  *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
     underlying do_cipher function handles all cipher semantics itself
     including padding and finalisation. This is useful if (for example)
     an ENGINE cipher handles block padding itself. The behaviour of
     do_cipher is subtly changed if this flag is set: the return value
     is the number of characters written to the output buffer (zero is
     no longer an error code) or a negative error code. Also if the
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     input buffer is NULL and length 0 finalisation should be performed.
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     [Steve Henson]

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  *) If a candidate issuer certificate is already part of the constructed
     path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
     [Steve Henson]

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  *) Improve forward-security support: add functions

       void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
       void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))

     for use by SSL/TLS servers; the callback function will be called whenever a
     new session is created, and gets to decide whether the session may be
     cached to make it resumable (return 0) or not (return 1).  (As by the
     SSL/TLS protocol specifications, the session_id sent by the server will be
     empty to indicate that the session is not resumable; also, the server will
     not generate RFC 4507 (RFC 5077) session tickets.)

     A simple reasonable callback implementation is to return is_forward_secure.
     This parameter will be set to 1 or 0 depending on the ciphersuite selected
     by the SSL/TLS server library, indicating whether it can provide forward
     security.
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     [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
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  *) New -verify_name option in command line utilities to set verification
     parameters by name.
     [Steve Henson]

  *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
     Add CMAC pkey methods.
     [Steve Henson]

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  *) Experimental renegotiation in s_server -www mode. If the client 
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     browses /reneg connection is renegotiated. If /renegcert it is
     renegotiated requesting a certificate.
     [Steve Henson]

  *) Add an "external" session cache for debugging purposes to s_server. This
     should help trace issues which normally are only apparent in deployed
     multi-process servers.
     [Steve Henson]

  *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
     return value is ignored. NB. The functions RAND_add(), RAND_seed(),
     BIO_set_cipher() and some obscure PEM functions were changed so they
     can now return an error. The RAND changes required a change to the
     RAND_METHOD structure.
     [Steve Henson]

  *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
     a gcc attribute to warn if the result of a function is ignored. This
     is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
     whose return value is often ignored. 
     [Steve Henson]
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janpopan 已提交
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 Changes between 1.0.2c and 1.0.2d [9 Jul 2015]
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  *) Alternate chains certificate forgery

     During certificate verfification, OpenSSL will attempt to find an
     alternative certificate chain if the first attempt to build such a chain
     fails. An error in the implementation of this logic can mean that an
     attacker could cause certain checks on untrusted certificates to be
     bypassed, such as the CA flag, enabling them to use a valid leaf
     certificate to act as a CA and "issue" an invalid certificate.

     This issue was reported to OpenSSL by Adam Langley/David Benjamin
     (Google/BoringSSL).
     [Matt Caswell]

 Changes between 1.0.2b and 1.0.2c [12 Jun 2015]

  *) Fix HMAC ABI incompatibility. The previous version introduced an ABI
     incompatibility in the handling of HMAC. The previous ABI has now been
     restored.
     [Matt Caswell]

 Changes between 1.0.2a and 1.0.2b [11 Jun 2015]
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  *) Malformed ECParameters causes infinite loop

     When processing an ECParameters structure OpenSSL enters an infinite loop
     if the curve specified is over a specially malformed binary polynomial
     field.

     This can be used to perform denial of service against any
     system which processes public keys, certificate requests or
     certificates.  This includes TLS clients and TLS servers with
     client authentication enabled.

     This issue was reported to OpenSSL by Joseph Barr-Pixton.
     (CVE-2015-1788)
     [Andy Polyakov]

  *) Exploitable out-of-bounds read in X509_cmp_time

     X509_cmp_time does not properly check the length of the ASN1_TIME
     string and can read a few bytes out of bounds. In addition,
     X509_cmp_time accepts an arbitrary number of fractional seconds in the
     time string.

     An attacker can use this to craft malformed certificates and CRLs of
     various sizes and potentially cause a segmentation fault, resulting in
     a DoS on applications that verify certificates or CRLs. TLS clients
     that verify CRLs are affected. TLS clients and servers with client
     authentication enabled may be affected if they use custom verification
     callbacks.

     This issue was reported to OpenSSL by Robert Swiecki (Google), and
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     independently by Hanno Böck.
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     (CVE-2015-1789)
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     [Emilia Käsper]
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  *) PKCS7 crash with missing EnvelopedContent

     The PKCS#7 parsing code does not handle missing inner EncryptedContent
     correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
     with missing content and trigger a NULL pointer dereference on parsing.

     Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
     structures from untrusted sources are affected. OpenSSL clients and
     servers are not affected.

     This issue was reported to OpenSSL by Michal Zalewski (Google).
     (CVE-2015-1790)
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     [Emilia Käsper]
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  *) CMS verify infinite loop with unknown hash function

     When verifying a signedData message the CMS code can enter an infinite loop
     if presented with an unknown hash function OID. This can be used to perform
     denial of service against any system which verifies signedData messages using
     the CMS code.
     This issue was reported to OpenSSL by Johannes Bauer.
     (CVE-2015-1792)
     [Stephen Henson]

  *) Race condition handling NewSessionTicket

     If a NewSessionTicket is received by a multi-threaded client when attempting to
     reuse a previous ticket then a race condition can occur potentially leading to
     a double free of the ticket data.
     (CVE-2015-1791)
     [Matt Caswell]

617 618 619 620 621 622
  *) Only support 256-bit or stronger elliptic curves with the
     'ecdh_auto' setting (server) or by default (client). Of supported
     curves, prefer P-256 (both).
     [Emilia Kasper]

 Changes between 1.0.2 and 1.0.2a [19 Mar 2015]
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  *) ClientHello sigalgs DoS fix

     If a client connects to an OpenSSL 1.0.2 server and renegotiates with an
     invalid signature algorithms extension a NULL pointer dereference will
     occur. This can be exploited in a DoS attack against the server.

     This issue was was reported to OpenSSL by David Ramos of Stanford
     University.
     (CVE-2015-0291)
     [Stephen Henson and Matt Caswell]

  *) Multiblock corrupted pointer fix

     OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This
     feature only applies on 64 bit x86 architecture platforms that support AES
     NI instructions. A defect in the implementation of "multiblock" can cause
     OpenSSL's internal write buffer to become incorrectly set to NULL when
     using non-blocking IO. Typically, when the user application is using a
     socket BIO for writing, this will only result in a failed connection.
     However if some other BIO is used then it is likely that a segmentation
     fault will be triggered, thus enabling a potential DoS attack.

     This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller.
     (CVE-2015-0290)
     [Matt Caswell]

  *) Segmentation fault in DTLSv1_listen fix

     The DTLSv1_listen function is intended to be stateless and processes the
     initial ClientHello from many peers. It is common for user code to loop
     over the call to DTLSv1_listen until a valid ClientHello is received with
     an associated cookie. A defect in the implementation of DTLSv1_listen means
     that state is preserved in the SSL object from one invocation to the next
     that can lead to a segmentation fault. Errors processing the initial
     ClientHello can trigger this scenario. An example of such an error could be
     that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only
     server.

     This issue was reported to OpenSSL by Per Allansson.
     (CVE-2015-0207)
     [Matt Caswell]

  *) Segmentation fault in ASN1_TYPE_cmp fix

     The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
     made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
     certificate signature algorithm consistency this can be used to crash any
     certificate verification operation and exploited in a DoS attack. Any
     application which performs certificate verification is vulnerable including
     OpenSSL clients and servers which enable client authentication.
     (CVE-2015-0286)
     [Stephen Henson]

  *) Segmentation fault for invalid PSS parameters fix

     The signature verification routines will crash with a NULL pointer
     dereference if presented with an ASN.1 signature using the RSA PSS
     algorithm and invalid parameters. Since these routines are used to verify
     certificate signature algorithms this can be used to crash any
     certificate verification operation and exploited in a DoS attack. Any
     application which performs certificate verification is vulnerable including
     OpenSSL clients and servers which enable client authentication.

     This issue was was reported to OpenSSL by Brian Carpenter.
     (CVE-2015-0208)
     [Stephen Henson]

  *) ASN.1 structure reuse memory corruption fix

     Reusing a structure in ASN.1 parsing may allow an attacker to cause
     memory corruption via an invalid write. Such reuse is and has been
     strongly discouraged and is believed to be rare.

     Applications that parse structures containing CHOICE or ANY DEFINED BY
     components may be affected. Certificate parsing (d2i_X509 and related
     functions) are however not affected. OpenSSL clients and servers are
     not affected.
     (CVE-2015-0287)
     [Stephen Henson]

  *) PKCS7 NULL pointer dereferences fix

     The PKCS#7 parsing code does not handle missing outer ContentInfo
     correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
     missing content and trigger a NULL pointer dereference on parsing.

     Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
     otherwise parse PKCS#7 structures from untrusted sources are
     affected. OpenSSL clients and servers are not affected.

     This issue was reported to OpenSSL by Michal Zalewski (Google).
     (CVE-2015-0289)
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     [Emilia Käsper]
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  *) DoS via reachable assert in SSLv2 servers fix

     A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
     servers that both support SSLv2 and enable export cipher suites by sending
     a specially crafted SSLv2 CLIENT-MASTER-KEY message.

724
     This issue was discovered by Sean Burford (Google) and Emilia Käsper
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     (OpenSSL development team).
     (CVE-2015-0293)
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     [Emilia Käsper]
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  *) Empty CKE with client auth and DHE fix

     If client auth is used then a server can seg fault in the event of a DHE
     ciphersuite being selected and a zero length ClientKeyExchange message
     being sent by the client. This could be exploited in a DoS attack.
     (CVE-2015-1787)
     [Matt Caswell]

  *) Handshake with unseeded PRNG fix

     Under certain conditions an OpenSSL 1.0.2 client can complete a handshake
     with an unseeded PRNG. The conditions are:
     - The client is on a platform where the PRNG has not been seeded
     automatically, and the user has not seeded manually
     - A protocol specific client method version has been used (i.e. not
     SSL_client_methodv23)
     - A ciphersuite is used that does not require additional random data from
     the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA).

     If the handshake succeeds then the client random that has been used will
     have been generated from a PRNG with insufficient entropy and therefore the
     output may be predictable.

     For example using the following command with an unseeded openssl will
     succeed on an unpatched platform:

     openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA
     (CVE-2015-0285)
     [Matt Caswell]

  *) Use After Free following d2i_ECPrivatekey error fix

     A malformed EC private key file consumed via the d2i_ECPrivateKey function
     could cause a use after free condition. This, in turn, could cause a double
     free in several private key parsing functions (such as d2i_PrivateKey
     or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
     for applications that receive EC private keys from untrusted
     sources. This scenario is considered rare.

     This issue was discovered by the BoringSSL project and fixed in their
     commit 517073cd4b.
     (CVE-2015-0209)
     [Matt Caswell]

  *) X509_to_X509_REQ NULL pointer deref fix

     The function X509_to_X509_REQ will crash with a NULL pointer dereference if
     the certificate key is invalid. This function is rarely used in practice.

     This issue was discovered by Brian Carpenter.
     (CVE-2015-0288)
     [Stephen Henson]

  *) Removed the export ciphers from the DEFAULT ciphers
     [Kurt Roeckx]

 Changes between 1.0.1l and 1.0.2 [22 Jan 2015]
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787 788 789 790 791 792 793 794
  *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g.
     ARMv5 through ARMv8, as opposite to "locking" it to single one.
     So far those who have to target multiple plaforms would compromise
     and argue that binary targeting say ARMv5 would still execute on
     ARMv8. "Universal" build resolves this compromise by providing
     near-optimal performance even on newer platforms.
     [Andy Polyakov]

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  *) Accelerated NIST P-256 elliptic curve implementation for x86_64
     (other platforms pending).
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     [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
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799 800 801 802
  *) Add support for the SignedCertificateTimestampList certificate and
     OCSP response extensions from RFC6962.
     [Rob Stradling]

803 804 805 806 807
  *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
     for corner cases. (Certain input points at infinity could lead to
     bogus results, with non-infinity inputs mapped to infinity too.)
     [Bodo Moeller]

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  *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
     This covers AES, SHA256/512 and GHASH. "Initial" means that most
     common cases are optimized and there still is room for further
     improvements. Vector Permutation AES for Altivec is also added.
     [Andy Polyakov]

  *) Add support for little-endian ppc64 Linux target.
     [Marcelo Cerri (IBM)]

  *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
     SHA1, SHA256 and GHASH. "Initial" means that most common cases
     are optimized and there still is room for further improvements.
     Both 32- and 64-bit modes are supported.
     [Andy Polyakov, Ard Biesheuvel (Linaro)]

  *) Improved ARMv7 NEON support.
     [Andy Polyakov]

  *) Support for SPARC Architecture 2011 crypto extensions, first
     implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
     SHA256/512, MD5, GHASH and modular exponentiation.
     [Andy Polyakov, David Miller]

  *) Accelerated modular exponentiation for Intel processors, a.k.a.
     RSAZ.
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     [Shay Gueron & Vlad Krasnov (Intel Corp)]
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  *) Support for new and upcoming Intel processors, including AVX2,
     BMI and SHA ISA extensions. This includes additional "stitched"
     implementations, AESNI-SHA256 and GCM, and multi-buffer support
     for TLS encrypt.

     This work was sponsored by Intel Corp.
     [Andy Polyakov]

843 844 845 846 847
  *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
     supports both DTLS 1.2 and 1.0 and should use whatever version the peer
     supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
     [Steve Henson]

848 849 850 851 852 853 854 855 856 857 858 859 860
  *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
     this fixes a limiation in previous versions of OpenSSL.
     [Steve Henson]

  *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
     MGF1 digest and OAEP label.
     [Steve Henson]

  *) Add EVP support for key wrapping algorithms, to avoid problems with
     existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
     the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
     algorithms and include tests cases.
     [Steve Henson]
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  *) Add functions to allocate and set the fields of an ECDSA_METHOD
     structure.
     [Douglas E. Engert, Steve Henson]

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  *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
     difference in days and seconds between two tm or ASN1_TIME structures.
     [Steve Henson]

  *) Add -rev test option to s_server to just reverse order of characters
     received by client and send back to server. Also prints an abbreviated
     summary of the connection parameters.
     [Steve Henson]

  *) New option -brief for s_client and s_server to print out a brief summary
     of connection parameters.
     [Steve Henson]

  *) Add callbacks for arbitrary TLS extensions.
     [Trevor Perrin <trevp@trevp.net> and Ben Laurie]

  *) New option -crl_download in several openssl utilities to download CRLs
     from CRLDP extension in certificates.
     [Steve Henson]

  *) New options -CRL and -CRLform for s_client and s_server for CRLs.
     [Steve Henson]

  *) New function X509_CRL_diff to generate a delta CRL from the difference
     of two full CRLs. Add support to "crl" utility.
     [Steve Henson]

  *) New functions to set lookup_crls function and to retrieve
     X509_STORE from X509_STORE_CTX.
     [Steve Henson]

  *) Print out deprecated issuer and subject unique ID fields in
     certificates.
     [Steve Henson]

  *) Extend OCSP I/O functions so they can be used for simple general purpose
     HTTP as well as OCSP. New wrapper function which can be used to download
     CRLs using the OCSP API.
     [Steve Henson]

  *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
     [Steve Henson]

  *) SSL_CONF* functions. These provide a common framework for application
     configuration using configuration files or command lines.
     [Steve Henson]

  *) SSL/TLS tracing code. This parses out SSL/TLS records using the
     message callback and prints the results. Needs compile time option
     "enable-ssl-trace". New options to s_client and s_server to enable
     tracing.
     [Steve Henson]

  *) New ctrl and macro to retrieve supported points extensions.
     Print out extension in s_server and s_client.
     [Steve Henson]

  *) New functions to retrieve certificate signature and signature
     OID NID.
     [Steve Henson]

  *) Add functions to retrieve and manipulate the raw cipherlist sent by a
     client to OpenSSL.
     [Steve Henson]

  *) New Suite B modes for TLS code. These use and enforce the requirements
     of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
     only use Suite B curves. The Suite B modes can be set by using the
     strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
     [Steve Henson]

  *) New chain verification flags for Suite B levels of security. Check
     algorithms are acceptable when flags are set in X509_verify_cert.
     [Steve Henson]

  *) Make tls1_check_chain return a set of flags indicating checks passed
     by a certificate chain. Add additional tests to handle client
     certificates: checks for matching certificate type and issuer name
     comparison.
     [Steve Henson]

  *) If an attempt is made to use a signature algorithm not in the peer
     preference list abort the handshake. If client has no suitable
     signature algorithms in response to a certificate request do not
     use the certificate.
     [Steve Henson]

  *) If server EC tmp key is not in client preference list abort handshake.
     [Steve Henson]

  *) Add support for certificate stores in CERT structure. This makes it
     possible to have different stores per SSL structure or one store in
     the parent SSL_CTX. Include distint stores for certificate chain
     verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
     to build and store a certificate chain in CERT structure: returing
     an error if the chain cannot be built: this will allow applications
     to test if a chain is correctly configured.

     Note: if the CERT based stores are not set then the parent SSL_CTX
     store is used to retain compatibility with existing behaviour.

     [Steve Henson]

  *) New function ssl_set_client_disabled to set a ciphersuite disabled
     mask based on the current session, check mask when sending client
     hello and checking the requested ciphersuite.
     [Steve Henson]

  *) New ctrls to retrieve and set certificate types in a certificate
     request message. Print out received values in s_client. If certificate
     types is not set with custom values set sensible values based on
     supported signature algorithms.
     [Steve Henson]

  *) Support for distinct client and server supported signature algorithms.
     [Steve Henson]

  *) Add certificate callback. If set this is called whenever a certificate
     is required by client or server. An application can decide which
     certificate chain to present based on arbitrary criteria: for example
     supported signature algorithms. Add very simple example to s_server.
     This fixes many of the problems and restrictions of the existing client
     certificate callback: for example you can now clear an existing
     certificate and specify the whole chain.
     [Steve Henson]

  *) Add new "valid_flags" field to CERT_PKEY structure which determines what
     the certificate can be used for (if anything). Set valid_flags field 
     in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
     to have similar checks in it.

     Add new "cert_flags" field to CERT structure and include a "strict mode".
     This enforces some TLS certificate requirements (such as only permitting
     certificate signature algorithms contained in the supported algorithms
     extension) which some implementations ignore: this option should be used
     with caution as it could cause interoperability issues.
     [Steve Henson]

  *) Update and tidy signature algorithm extension processing. Work out
     shared signature algorithms based on preferences and peer algorithms
     and print them out in s_client and s_server. Abort handshake if no
     shared signature algorithms.
     [Steve Henson]

  *) Add new functions to allow customised supported signature algorithms
     for SSL and SSL_CTX structures. Add options to s_client and s_server
     to support them.
     [Steve Henson]

  *) New function SSL_certs_clear() to delete all references to certificates
     from an SSL structure. Before this once a certificate had been added
     it couldn't be removed.
     [Steve Henson]

  *) Integrate hostname, email address and IP address checking with certificate
     verification. New verify options supporting checking in opensl utility.
     [Steve Henson]

  *) Fixes and wildcard matching support to hostname and email checking
     functions. Add manual page.
     [Florian Weimer (Red Hat Product Security Team)]

  *) New functions to check a hostname email or IP address against a
     certificate. Add options x509 utility to print results of checks against
     a certificate.
     [Steve Henson]

  *) Fix OCSP checking.
     [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]

1036 1037 1038 1039 1040 1041
  *) Initial experimental support for explicitly trusted non-root CAs. 
     OpenSSL still tries to build a complete chain to a root but if an
     intermediate CA has a trust setting included that is used. The first
     setting is used: whether to trust (e.g., -addtrust option to the x509
     utility) or reject.
     [Steve Henson]
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  *) Add -trusted_first option which attempts to find certificates in the
     trusted store even if an untrusted chain is also supplied.
     [Steve Henson]
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1047 1048 1049 1050
  *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
     platform support for Linux and Android.
     [Andy Polyakov]

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  *) Support for linux-x32, ILP32 environment in x86_64 framework.
     [Andy Polyakov]

  *) Experimental multi-implementation support for FIPS capable OpenSSL.
     When in FIPS mode the approved implementations are used as normal,
     when not in FIPS mode the internal unapproved versions are used instead.
     This means that the FIPS capable OpenSSL isn't forced to use the
1058
     (often lower performance) FIPS implementations outside FIPS mode.
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     [Steve Henson]

  *) Transparently support X9.42 DH parameters when calling
     PEM_read_bio_DHparameters. This means existing applications can handle
     the new parameter format automatically.
     [Steve Henson]

  *) Initial experimental support for X9.42 DH parameter format: mainly
     to support use of 'q' parameter for RFC5114 parameters.
     [Steve Henson]

  *) Add DH parameters from RFC5114 including test data to dhtest.
     [Steve Henson]

  *) Support for automatic EC temporary key parameter selection. If enabled
     the most preferred EC parameters are automatically used instead of
     hardcoded fixed parameters. Now a server just has to call:
     SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
     support ECDH and use the most appropriate parameters.
     [Steve Henson]

  *) Enhance and tidy EC curve and point format TLS extension code. Use
     static structures instead of allocation if default values are used.
     New ctrls to set curves we wish to support and to retrieve shared curves.
     Print out shared curves in s_server. New options to s_server and s_client
     to set list of supported curves.
     [Steve Henson]

  *) New ctrls to retrieve supported signature algorithms and 
     supported curve values as an array of NIDs. Extend openssl utility
     to print out received values.
     [Steve Henson]

  *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
     between NIDs and the more common NIST names such as "P-256". Enhance
     ecparam utility and ECC method to recognise the NIST names for curves.
     [Steve Henson]

  *) Enhance SSL/TLS certificate chain handling to support different
     chains for each certificate instead of one chain in the parent SSL_CTX.
     [Steve Henson]

  *) Support for fixed DH ciphersuite client authentication: where both
     server and client use DH certificates with common parameters.
     [Steve Henson]

  *) Support for fixed DH ciphersuites: those requiring DH server
     certificates.
     [Steve Henson]

1109 1110 1111 1112 1113 1114
  *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
     the certificate.
     Note: Related 1.0.2-beta specific macros X509_get_cert_info,
     X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
     X509_CINF_get_signature were reverted post internal team review.

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 Changes between 1.0.1k and 1.0.1l [15 Jan 2015]

  *) Build fixes for the Windows and OpenVMS platforms
     [Matt Caswell and Richard Levitte]

 Changes between 1.0.1j and 1.0.1k [8 Jan 2015]

  *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
     message can cause a segmentation fault in OpenSSL due to a NULL pointer
     dereference. This could lead to a Denial Of Service attack. Thanks to
     Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
     (CVE-2014-3571)
     [Steve Henson]

  *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
     dtls1_buffer_record function under certain conditions. In particular this
     could occur if an attacker sent repeated DTLS records with the same
     sequence number but for the next epoch. The memory leak could be exploited
     by an attacker in a Denial of Service attack through memory exhaustion.
     Thanks to Chris Mueller for reporting this issue.
     (CVE-2015-0206)
     [Matt Caswell]

  *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
     built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
     method would be set to NULL which could later result in a NULL pointer
     dereference. Thanks to Frank Schmirler for reporting this issue.
     (CVE-2014-3569)
     [Kurt Roeckx]
E
Emilia Kasper 已提交
1144

D
Dr. Stephen Henson 已提交
1145 1146 1147
  *) Abort handshake if server key exchange message is omitted for ephemeral
     ECDH ciphersuites.

1148 1149
     Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
     reporting this issue.
D
Dr. Stephen Henson 已提交
1150 1151 1152
     (CVE-2014-3572)
     [Steve Henson]

1153 1154 1155 1156
  *) Remove non-export ephemeral RSA code on client and server. This code
     violated the TLS standard by allowing the use of temporary RSA keys in
     non-export ciphersuites and could be used by a server to effectively
     downgrade the RSA key length used to a value smaller than the server
1157 1158
     certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
     INRIA or reporting this issue.
1159 1160 1161
     (CVE-2015-0204)
     [Steve Henson]

M
Matt Caswell 已提交
1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172
  *) Fixed issue where DH client certificates are accepted without verification.
     An OpenSSL server will accept a DH certificate for client authentication
     without the certificate verify message. This effectively allows a client to
     authenticate without the use of a private key. This only affects servers
     which trust a client certificate authority which issues certificates
     containing DH keys: these are extremely rare and hardly ever encountered.
     Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
     this issue.
     (CVE-2015-0205)
     [Steve Henson]

1173 1174 1175 1176 1177 1178 1179
  *) Ensure that the session ID context of an SSL is updated when its
     SSL_CTX is updated via SSL_set_SSL_CTX.

     The session ID context is typically set from the parent SSL_CTX,
     and can vary with the CTX.
     [Adam Langley]

1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216
  *) Fix various certificate fingerprint issues.

     By using non-DER or invalid encodings outside the signed portion of a
     certificate the fingerprint can be changed without breaking the signature.
     Although no details of the signed portion of the certificate can be changed
     this can cause problems with some applications: e.g. those using the
     certificate fingerprint for blacklists.

     1. Reject signatures with non zero unused bits.

     If the BIT STRING containing the signature has non zero unused bits reject
     the signature. All current signature algorithms require zero unused bits.

     2. Check certificate algorithm consistency.

     Check the AlgorithmIdentifier inside TBS matches the one in the
     certificate signature. NB: this will result in signature failure
     errors for some broken certificates.

     Thanks to Konrad Kraszewski from Google for reporting this issue.

     3. Check DSA/ECDSA signatures use DER.

     Reencode DSA/ECDSA signatures and compare with the original received
     signature. Return an error if there is a mismatch.

     This will reject various cases including garbage after signature
     (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
     program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
     (negative or with leading zeroes).

     Further analysis was conducted and fixes were developed by Stephen Henson
     of the OpenSSL core team.

     (CVE-2014-8275)
     [Steve Henson]

M
Matt Caswell 已提交
1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227
   *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
      results on some platforms, including x86_64. This bug occurs at random
      with a very low probability, and is not known to be exploitable in any
      way, though its exact impact is difficult to determine. Thanks to Pieter
      Wuille (Blockstream) who reported this issue and also suggested an initial
      fix. Further analysis was conducted by the OpenSSL development team and
      Adam Langley of Google. The final fix was developed by Andy Polyakov of
      the OpenSSL core team.
      (CVE-2014-3570)
      [Andy Polyakov]

1228 1229 1230 1231
   *) Do not resume sessions on the server if the negotiated protocol
      version does not match the session's version. Resuming with a different
      version, while not strictly forbidden by the RFC, is of questionable
      sanity and breaks all known clients.
1232
      [David Benjamin, Emilia Käsper]
1233

1234 1235 1236
   *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
      early CCS messages during renegotiation. (Note that because
      renegotiation is encrypted, this early CCS was not exploitable.)
1237
      [Emilia Käsper]
1238

E
Emilia Kasper 已提交
1239 1240 1241 1242 1243
   *) Tighten client-side session ticket handling during renegotiation:
      ensure that the client only accepts a session ticket if the server sends
      the extension anew in the ServerHello. Previously, a TLS client would
      reuse the old extension state and thus accept a session ticket if one was
      announced in the initial ServerHello.
1244 1245 1246 1247

      Similarly, ensure that the client requires a session ticket if one
      was advertised in the ServerHello. Previously, a TLS client would
      ignore a missing NewSessionTicket message.
1248
      [Emilia Käsper]
E
Emilia Kasper 已提交
1249

E
Emilia Kasper 已提交
1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289
 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]

  *) SRTP Memory Leak.

     A flaw in the DTLS SRTP extension parsing code allows an attacker, who
     sends a carefully crafted handshake message, to cause OpenSSL to fail
     to free up to 64k of memory causing a memory leak. This could be
     exploited in a Denial Of Service attack. This issue affects OpenSSL
     1.0.1 server implementations for both SSL/TLS and DTLS regardless of
     whether SRTP is used or configured. Implementations of OpenSSL that
     have been compiled with OPENSSL_NO_SRTP defined are not affected.

     The fix was developed by the OpenSSL team.
     (CVE-2014-3513)
     [OpenSSL team]

  *) Session Ticket Memory Leak.

     When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
     integrity of that ticket is first verified. In the event of a session
     ticket integrity check failing, OpenSSL will fail to free memory
     causing a memory leak. By sending a large number of invalid session
     tickets an attacker could exploit this issue in a Denial Of Service
     attack.
     (CVE-2014-3567)
     [Steve Henson]

  *) Build option no-ssl3 is incomplete.

     When OpenSSL is configured with "no-ssl3" as a build option, servers
     could accept and complete a SSL 3.0 handshake, and clients could be
     configured to send them.
     (CVE-2014-3568)
     [Akamai and the OpenSSL team]

  *) Add support for TLS_FALLBACK_SCSV.
     Client applications doing fallback retries should call
     SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
     (CVE-2014-3566)
     [Adam Langley, Bodo Moeller]
1290

1291 1292
  *) Add additional DigestInfo checks.
 
1293 1294 1295
     Reencode DigestInto in DER and check against the original when
     verifying RSA signature: this will reject any improperly encoded
     DigestInfo structures.
1296

1297
     Note: this is a precautionary measure and no attacks are currently known.
1298 1299 1300

     [Steve Henson]

1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327
 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]

  *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
     SRP code can be overrun an internal buffer. Add sanity check that
     g, A, B < N to SRP code.

     Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
     Group for discovering this issue.
     (CVE-2014-3512)
     [Steve Henson]

  *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
     TLS 1.0 instead of higher protocol versions when the ClientHello message
     is badly fragmented. This allows a man-in-the-middle attacker to force a
     downgrade to TLS 1.0 even if both the server and the client support a
     higher protocol version, by modifying the client's TLS records.

     Thanks to David Benjamin and Adam Langley (Google) for discovering and
     researching this issue.
     (CVE-2014-3511)
     [David Benjamin]

  *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
     to a denial of service attack. A malicious server can crash the client
     with a null pointer dereference (read) by specifying an anonymous (EC)DH
     ciphersuite and sending carefully crafted handshake messages.

1328
     Thanks to Felix Gröbert (Google) for discovering and researching this
1329 1330
     issue.
     (CVE-2014-3510)
1331
     [Emilia Käsper]
1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367

  *) By sending carefully crafted DTLS packets an attacker could cause openssl
     to leak memory. This can be exploited through a Denial of Service attack.
     Thanks to Adam Langley for discovering and researching this issue.
     (CVE-2014-3507)
     [Adam Langley]

  *) An attacker can force openssl to consume large amounts of memory whilst
     processing DTLS handshake messages. This can be exploited through a
     Denial of Service attack.
     Thanks to Adam Langley for discovering and researching this issue.
     (CVE-2014-3506)
     [Adam Langley]

  *) An attacker can force an error condition which causes openssl to crash
     whilst processing DTLS packets due to memory being freed twice. This
     can be exploited through a Denial of Service attack.
     Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
     this issue.
     (CVE-2014-3505)
     [Adam Langley]

  *) If a multithreaded client connects to a malicious server using a resumed
     session and the server sends an ec point format extension it could write
     up to 255 bytes to freed memory.

     Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
     issue.
     (CVE-2014-3509)
     [Gabor Tyukasz]

  *) A malicious server can crash an OpenSSL client with a null pointer
     dereference (read) by specifying an SRP ciphersuite even though it was not
     properly negotiated with the client. This can be exploited through a
     Denial of Service attack.

1368
     Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379
     discovering and researching this issue.
     (CVE-2014-5139)
     [Steve Henson]

  *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
     X509_name_oneline, X509_name_print_ex et al. to leak some information
     from the stack. Applications may be affected if they echo pretty printing
     output to the attacker.

     Thanks to Ivan Fratric (Google) for discovering this issue.
     (CVE-2014-3508)
1380
     [Emilia Käsper, and Steve Henson]
1381 1382 1383 1384 1385 1386

  *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
     for corner cases. (Certain input points at infinity could lead to
     bogus results, with non-infinity inputs mapped to infinity too.)
     [Bodo Moeller]

1387 1388
 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]

1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409
  *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
     handshake can force the use of weak keying material in OpenSSL
     SSL/TLS clients and servers.

     Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
     researching this issue. (CVE-2014-0224)
     [KIKUCHI Masashi, Steve Henson]

  *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
     OpenSSL DTLS client the code can be made to recurse eventually crashing
     in a DoS attack.

     Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
     (CVE-2014-0221)
     [Imre Rad, Steve Henson]

  *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
     be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
     client or server. This is potentially exploitable to run arbitrary
     code on a vulnerable client or server.

1410 1411
     Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
     [Jüri Aedla, Steve Henson]
1412 1413 1414 1415

  *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
     are subject to a denial of service attack.

1416
     Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
1417
     this issue. (CVE-2014-3470)
1418
     [Felix Gröbert, Ivan Fratric, Steve Henson]
1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479

  *) Harmonize version and its documentation. -f flag is used to display
     compilation flags.
     [mancha <mancha1@zoho.com>]

  *) Fix eckey_priv_encode so it immediately returns an error upon a failure
     in i2d_ECPrivateKey.
     [mancha <mancha1@zoho.com>]

  *) Fix some double frees. These are not thought to be exploitable.
     [mancha <mancha1@zoho.com>]

 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]

  *) A missing bounds check in the handling of the TLS heartbeat extension
     can be used to reveal up to 64k of memory to a connected client or
     server.

     Thanks for Neel Mehta of Google Security for discovering this bug and to
     Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
     preparing the fix (CVE-2014-0160)
     [Adam Langley, Bodo Moeller]

  *) Fix for the attack described in the paper "Recovering OpenSSL
     ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
     by Yuval Yarom and Naomi Benger. Details can be obtained from:
     http://eprint.iacr.org/2014/140

     Thanks to Yuval Yarom and Naomi Benger for discovering this
     flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
     [Yuval Yarom and Naomi Benger]

  *) TLS pad extension: draft-agl-tls-padding-03

     Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
     TLS client Hello record length value would otherwise be > 255 and
     less that 512 pad with a dummy extension containing zeroes so it
     is at least 512 bytes long.

     [Adam Langley, Steve Henson]

 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]

  *) Fix for TLS record tampering bug. A carefully crafted invalid 
     handshake could crash OpenSSL with a NULL pointer exception.
     Thanks to Anton Johansson for reporting this issues.
     (CVE-2013-4353)

  *) Keep original DTLS digest and encryption contexts in retransmission
     structures so we can use the previous session parameters if they need
     to be resent. (CVE-2013-6450)
     [Steve Henson]

  *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
     avoids preferring ECDHE-ECDSA ciphers when the client appears to be
     Safari on OS X.  Safari on OS X 10.8..10.8.3 advertises support for
     several ECDHE-ECDSA ciphers, but fails to negotiate them.  The bug
     is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
     10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
     [Rob Stradling, Adam Langley]

B
Bodo Moeller 已提交
1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496
 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]

  *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
     supporting platforms or when small records were transferred.
     [Andy Polyakov, Steve Henson]

 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]

  *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.

     This addresses the flaw in CBC record processing discovered by 
     Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
     at: http://www.isg.rhul.ac.uk/tls/     

     Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
     Security Group at Royal Holloway, University of London
     (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1497
     Emilia Käsper for the initial patch.
B
Bodo Moeller 已提交
1498
     (CVE-2013-0169)
1499
     [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
B
Bodo Moeller 已提交
1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520

  *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
     ciphersuites which can be exploited in a denial of service attack.
     Thanks go to and to Adam Langley <agl@chromium.org> for discovering
     and detecting this bug and to Wolfgang Ettlinger
     <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
     (CVE-2012-2686)
     [Adam Langley]

  *) Return an error when checking OCSP signatures when key is NULL.
     This fixes a DoS attack. (CVE-2013-0166)
     [Steve Henson]

  *) Make openssl verify return errors.
     [Chris Palmer <palmer@google.com> and Ben Laurie]

  *) Call OCSP Stapling callback after ciphersuite has been chosen, so
     the right response is stapled. Also change SSL_get_certificate()
     so it returns the certificate actually sent.
     See http://rt.openssl.org/Ticket/Display.html?id=2836.
     [Rob Stradling <rob.stradling@comodo.com>]
D
Dr. Stephen Henson 已提交
1521

D
Dr. Stephen Henson 已提交
1522 1523 1524
  *) Fix possible deadlock when decoding public keys.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
1525 1526 1527 1528 1529
  *) Don't use TLS 1.0 record version number in initial client hello
     if renegotiating.
     [Steve Henson]

 Changes between 1.0.1b and 1.0.1c [10 May 2012]
1530

1531
  *) Sanity check record length before skipping explicit IV in TLS
B
Bodo Moeller 已提交
1532
     1.2, 1.1 and DTLS to fix DoS attack.
1533 1534 1535 1536 1537 1538

     Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
     fuzzing as a service testing platform.
     (CVE-2012-2333)
     [Steve Henson]

1539 1540 1541
  *) Initialise tkeylen properly when encrypting CMS messages.
     Thanks to Solar Designer of Openwall for reporting this issue.
     [Steve Henson]
A
Andy Polyakov 已提交
1542

1543 1544 1545
  *) In FIPS mode don't try to use composite ciphers as they are not
     approved.
     [Steve Henson]
A
Andy Polyakov 已提交
1546

1547
 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
A
Andy Polyakov 已提交
1548

A
Andy Polyakov 已提交
1549
  *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
1550 1551
     1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
     mean any application compiled against OpenSSL 1.0.0 headers setting
B
Bodo Moeller 已提交
1552
     SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
A
Andy Polyakov 已提交
1553
     TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
1554 1555
     0x10000000L Any application which was previously compiled against
     OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
A
Andy Polyakov 已提交
1556 1557 1558
     will need to be recompiled as a result. Letting be results in
     inability to disable specifically TLS 1.1 and in client context,
     in unlike event, limit maximum offered version to TLS 1.0 [see below].
1559 1560
     [Steve Henson]

B
Bodo Moeller 已提交
1561
  *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
1562 1563 1564 1565
     disable just protocol X, but all protocols above X *if* there are
     protocols *below* X still enabled. In more practical terms it means
     that if application wants to disable TLS1.0 in favor of TLS1.1 and
     above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
A
Andy Polyakov 已提交
1566 1567
     SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
     client side.
1568 1569
     [Andy Polyakov]

1570 1571 1572 1573 1574 1575 1576 1577 1578 1579
 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]

  *) Check for potentially exploitable overflows in asn1_d2i_read_bio
     BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
     in CRYPTO_realloc_clean.

     Thanks to Tavis Ormandy, Google Security Team, for discovering this
     issue and to Adam Langley <agl@chromium.org> for fixing it.
     (CVE-2012-2110)
     [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1580

1581 1582 1583
  *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
     [Adam Langley]

1584
  *) Workarounds for some broken servers that "hang" if a client hello
B
Bodo Moeller 已提交
1585 1586
     record length exceeds 255 bytes.

1587 1588 1589
     1. Do not use record version number > TLS 1.0 in initial client
        hello: some (but not all) hanging servers will now work.
     2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
B
Bodo Moeller 已提交
1590
	the number of ciphers sent in the client hello. This should be
1591 1592 1593 1594
        set to an even number, such as 50, for example by passing:
        -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
        Most broken servers should now work.
     3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
B
Bodo Moeller 已提交
1595
	TLS 1.2 client support entirely.
1596
     [Steve Henson]
1597

1598 1599 1600 1601 1602 1603 1604 1605
  *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
     [Andy Polyakov]

 Changes between 1.0.0h and 1.0.1  [14 Mar 2012]

  *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
     STRING form instead of a DigestInfo.
     [Steve Henson]
1606

1607 1608 1609 1610 1611 1612 1613
  *) The format used for MDC2 RSA signatures is inconsistent between EVP
     and the RSA_sign/RSA_verify functions. This was made more apparent when
     OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
     those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 
     the correct format in RSA_verify so both forms transparently work.
     [Steve Henson]

1614 1615
  *) Some servers which support TLS 1.0 can choke if we initially indicate
     support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
1616
     encrypted premaster secret. As a workaround use the maximum permitted
1617 1618 1619 1620
     client version in client hello, this should keep such servers happy
     and still work with previous versions of OpenSSL.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
1621 1622 1623
  *) Add support for TLS/DTLS heartbeats.
     [Robin Seggelmann <seggelmann@fh-muenster.de>]

D
Dr. Stephen Henson 已提交
1624 1625 1626
  *) Add support for SCTP.
     [Robin Seggelmann <seggelmann@fh-muenster.de>]

D
Dr. Stephen Henson 已提交
1627 1628 1629
  *) Improved PRNG seeding for VOS.
     [Paul Green <Paul.Green@stratus.com>]

A
Andy Polyakov 已提交
1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640
  *) Extensive assembler packs updates, most notably:

	- x86[_64]:     AES-NI, PCLMULQDQ, RDRAND support;
	- x86[_64]:     SSSE3 support (SHA1, vector-permutation AES);
	- x86_64:       bit-sliced AES implementation;
	- ARM:          NEON support, contemporary platforms optimizations;
	- s390x:        z196 support;
	- *:            GHASH and GF(2^m) multiplication implementations;

     [Andy Polyakov]

D
Dr. Stephen Henson 已提交
1641 1642 1643 1644
  *) Make TLS-SRP code conformant with RFC 5054 API cleanup
     (removal of unnecessary code)
     [Peter Sylvester <peter.sylvester@edelweb.fr>]

B
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1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656
  *) Add TLS key material exporter from RFC 5705.
     [Eric Rescorla]

  *) Add DTLS-SRTP negotiation from RFC 5764.
     [Eric Rescorla]

  *) Add Next Protocol Negotiation,
     http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
     disabled with a no-npn flag to config or Configure. Code donated
     by Google.
     [Adam Langley <agl@google.com> and Ben Laurie]

1657 1658 1659
  *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
     NIST-P256, NIST-P521, with constant-time single point multiplication on
     typical inputs. Compiler support for the nonstandard type __uint128_t is
B
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1660 1661
     required to use this (present in gcc 4.4 and later, for 64-bit builds).
     Code made available under Apache License version 2.0.
1662

B
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1663 1664 1665
     Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
     line to include this in your build of OpenSSL, and run "make depend" (or
     "make update"). This enables the following EC_METHODs:
1666 1667 1668 1669 1670 1671 1672 1673

         EC_GFp_nistp224_method()
         EC_GFp_nistp256_method()
         EC_GFp_nistp521_method()

     EC_GROUP_new_by_curve_name() will automatically use these (while
     EC_GROUP_new_curve_GFp() currently prefers the more flexible
     implementations).
1674
     [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
1675

1676 1677 1678 1679 1680
  *) Use type ossl_ssize_t instad of ssize_t which isn't available on
     all platforms. Move ssize_t definition from e_os.h to the public
     header file e_os2.h as it now appears in public header file cms.h
     [Steve Henson]

D
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1681
  *) New -sigopt option to the ca, req and x509 utilities. Additional
1682
     signature parameters can be passed using this option and in
D
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1683
     particular PSS. 
1684 1685
     [Steve Henson]

D
typo  
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1686
  *) Add RSA PSS signing function. This will generate and set the
D
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1687 1688 1689 1690
     appropriate AlgorithmIdentifiers for PSS based on those in the
     corresponding EVP_MD_CTX structure. No application support yet.
     [Steve Henson]

1691 1692 1693 1694 1695 1696
  *) Support for companion algorithm specific ASN1 signing routines.
     New function ASN1_item_sign_ctx() signs a pre-initialised
     EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
     the appropriate parameters.
     [Steve Henson]

1697 1698 1699 1700 1701 1702 1703 1704
  *) Add new algorithm specific ASN1 verification initialisation function
     to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
     handling will be the same no matter what EVP_PKEY_METHOD is used.
     Add a PSS handler to support verification of PSS signatures: checked
     against a number of sample certificates.
     [Steve Henson]

  *) Add signature printing for PSS. Add PSS OIDs.
1705
     [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
1706

1707 1708 1709 1710 1711 1712
  *) Add algorithm specific signature printing. An individual ASN1 method
     can now print out signatures instead of the standard hex dump. 

     More complex signatures (e.g. PSS) can print out more meaningful
     information. Include DSA version that prints out the signature
     parameters r, s.
1713 1714
     [Steve Henson]

D
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1715 1716
  *) Password based recipient info support for CMS library: implementing
     RFC3211.
1717 1718
     [Steve Henson]

1719 1720 1721 1722
  *) Split password based encryption into PBES2 and PBKDF2 functions. This
     neatly separates the code into cipher and PBE sections and is required
     for some algorithms that split PBES2 into separate pieces (such as
     password based CMS).
D
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1723 1724
     [Steve Henson]

B
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1725 1726 1727 1728 1729 1730 1731 1732 1733 1734
  *) Session-handling fixes:
     - Fix handling of connections that are resuming with a session ID,
       but also support Session Tickets.
     - Fix a bug that suppressed issuing of a new ticket if the client
       presented a ticket with an expired session.
     - Try to set the ticket lifetime hint to something reasonable.
     - Make tickets shorter by excluding irrelevant information.
     - On the client side, don't ignore renewed tickets.
     [Adam Langley, Bodo Moeller (Google)]

B
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1735 1736 1737
  *) Fix PSK session representation.
     [Bodo Moeller]

1738
  *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
1739 1740 1741 1742

     This work was sponsored by Intel.
     [Andy Polyakov]

1743 1744 1745
  *) Add GCM support to TLS library. Some custom code is needed to split
     the IV between the fixed (from PRF) and explicit (from TLS record)
     portions. This adds all GCM ciphersuites supported by RFC5288 and 
1746
     RFC5289. Generalise some AES* cipherstrings to include GCM and
1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759
     add a special AESGCM string for GCM only.
     [Steve Henson]

  *) Expand range of ctrls for AES GCM. Permit setting invocation
     field on decrypt and retrieval of invocation field only on encrypt.
     [Steve Henson]

  *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
     As required by RFC5289 these ciphersuites cannot be used if for
     versions of TLS earlier than 1.2.
     [Steve Henson]

  *) For FIPS capable OpenSSL interpret a NULL default public key method
1760 1761 1762
     as unset and return the appropriate default but do *not* set the default.
     This means we can return the appropriate method in applications that
     switch between FIPS and non-FIPS modes.
1763 1764
     [Steve Henson]

1765 1766 1767 1768 1769
  *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
     ENGINE is used then we cannot handle that in the FIPS module so we
     keep original code iff non-FIPS operations are allowed.
     [Steve Henson]

1770 1771
  *) Add -attime option to openssl utilities.
     [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857

  *) Redirect DSA and DH operations to FIPS module in FIPS mode.
     [Steve Henson]

  *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
     FIPS EC methods unconditionally for now.
     [Steve Henson]

  *) New build option no-ec2m to disable characteristic 2 code.
     [Steve Henson]

  *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
     all cases can be covered as some introduce binary incompatibilities.
     [Steve Henson]

  *) Redirect RSA operations to FIPS module including keygen,
     encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
     [Steve Henson]

  *) Add similar low level API blocking to ciphers.
     [Steve Henson]

  *) Low level digest APIs are not approved in FIPS mode: any attempt
     to use these will cause a fatal error. Applications that *really* want
     to use them can use the private_* version instead.
     [Steve Henson]

  *) Redirect cipher operations to FIPS module for FIPS builds. 
     [Steve Henson]

  *) Redirect digest operations to FIPS module for FIPS builds. 
     [Steve Henson]

  *) Update build system to add "fips" flag which will link in fipscanister.o
     for static and shared library builds embedding a signature if needed.
     [Steve Henson]

  *) Output TLS supported curves in preference order instead of numerical
     order. This is currently hardcoded for the highest order curves first.
     This should be configurable so applications can judge speed vs strength.
     [Steve Henson]

  *) Add TLS v1.2 server support for client authentication. 
     [Steve Henson]

  *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
     and enable MD5.
     [Steve Henson]

  *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
     FIPS modules versions.
     [Steve Henson]

  *) Add TLS v1.2 client side support for client authentication. Keep cache
     of handshake records longer as we don't know the hash algorithm to use
     until after the certificate request message is received.
     [Steve Henson]

  *) Initial TLS v1.2 client support. Add a default signature algorithms
     extension including all the algorithms we support. Parse new signature
     format in client key exchange. Relax some ECC signing restrictions for
     TLS v1.2 as indicated in RFC5246.
     [Steve Henson]

  *) Add server support for TLS v1.2 signature algorithms extension. Switch
     to new signature format when needed using client digest preference.
     All server ciphersuites should now work correctly in TLS v1.2. No client
     support yet and no support for client certificates.
     [Steve Henson]

  *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
     to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
     ciphersuites. At present only RSA key exchange ciphersuites work with
     TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
     SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
     and version checking.
     [Steve Henson]

  *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
     with this defined it will not be affected by any changes to ssl internal
     structures. Add several utility functions to allow openssl application
     to work with OPENSSL_NO_SSL_INTERN defined.
     [Steve Henson]

  *) Add SRP support.
     [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
D
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1858

1859 1860 1861
  *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
     [Steve Henson]

D
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1862 1863 1864 1865
  *) Permit abbreviated handshakes when renegotiating using the function
     SSL_renegotiate_abbreviated().
     [Robin Seggelmann <seggelmann@fh-muenster.de>]

1866 1867 1868 1869 1870
  *) Add call to ENGINE_register_all_complete() to
     ENGINE_load_builtin_engines(), so some implementations get used
     automatically instead of needing explicit application support.
     [Steve Henson]

D
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1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883
  *) Add support for TLS key exporter as described in RFC5705.
     [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]

  *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
     a few changes are required:

       Add SSL_OP_NO_TLSv1_1 flag.
       Add TLSv1_1 methods.
       Update version checking logic to handle version 1.1.
       Add explicit IV handling (ported from DTLS code).
       Add command line options to s_client/s_server.
     [Steve Henson]

1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895
 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]

  *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
     in CMS and PKCS7 code. When RSA decryption fails use a random key for
     content decryption and always return the same error. Note: this attack
     needs on average 2^20 messages so it only affects automated senders. The
     old behaviour can be reenabled in the CMS code by setting the
     CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
     an MMA defence is not necessary.
     Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
     this issue. (CVE-2012-0884)
     [Steve Henson]
1896 1897 1898 1899 1900 1901

  *) Fix CVE-2011-4619: make sure we really are receiving a 
     client hello before rejecting multiple SGC restarts. Thanks to
     Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
     [Steve Henson]

1902 1903 1904 1905 1906 1907 1908 1909
 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]

  *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
     Thanks to Antonio Martin, Enterprise Secure Access Research and
     Development, Cisco Systems, Inc. for discovering this bug and
     preparing a fix. (CVE-2012-0050)
     [Antonio Martin]

D
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1910
 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1911

1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925
  *) Nadhem Alfardan and Kenny Paterson have discovered an extension
     of the Vaudenay padding oracle attack on CBC mode encryption
     which enables an efficient plaintext recovery attack against
     the OpenSSL implementation of DTLS. Their attack exploits timing
     differences arising during decryption processing. A research
     paper describing this attack can be found at:
                  http://www.isg.rhul.ac.uk/~kp/dtls.pdf
     Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
     Security Group at Royal Holloway, University of London
     (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
     <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
     for preparing the fix. (CVE-2011-4108)
     [Robin Seggelmann, Michael Tuexen]

1926 1927 1928 1929
  *) Clear bytes used for block padding of SSL 3.0 records.
     (CVE-2011-4576)
     [Adam Langley (Google)]

D
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1930 1931 1932
  *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
     Kadianakis <desnacked@gmail.com> for discovering this issue and
     Adam Langley for preparing the fix. (CVE-2011-4619)
D
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1933 1934 1935 1936 1937 1938 1939 1940 1941 1942
     [Adam Langley (Google)]

  *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
     [Andrey Kulikov <amdeich@gmail.com>]

  *) Prevent malformed RFC3779 data triggering an assertion failure.
     Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
     and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
     [Rob Austein <sra@hactrn.net>]

1943 1944 1945
  *) Improved PRNG seeding for VOS.
     [Paul Green <Paul.Green@stratus.com>]

1946 1947 1948
  *) Fix ssl_ciph.c set-up race.
     [Adam Langley (Google)]

B
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1949
  *) Fix spurious failures in ecdsatest.c.
1950
     [Emilia Käsper (Google)]
B
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1951

B
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1952 1953 1954 1955
  *) Fix the BIO_f_buffer() implementation (which was mixing different
     interpretations of the '..._len' fields).
     [Adam Langley (Google)]

B
Bodo Möller 已提交
1956 1957 1958 1959 1960 1961 1962 1963
  *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
     BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
     threads won't reuse the same blinding coefficients.

     This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
     lock to call BN_BLINDING_invert_ex, and avoids one use of
     BN_BLINDING_update for each BN_BLINDING structure (previously,
     the last update always remained unused).
1964
     [Emilia Käsper (Google)]
B
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1965

1966 1967 1968 1969
  *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
     [Bob Buckholz (Google)]

 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1970

1971 1972 1973 1974
  *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
     by initialising X509_STORE_CTX properly. (CVE-2011-3207)
     [Kaspar Brand <ossl@velox.ch>]

B
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1975
  *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1976
     for multi-threaded use of ECDH. (CVE-2011-3210)
B
Bodo Möller 已提交
1977 1978
     [Adam Langley (Google)]

B
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1979 1980 1981
  *) Fix x509_name_ex_d2i memory leak on bad inputs.
     [Bodo Moeller]

1982 1983 1984 1985 1986
  *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
     signature public key algorithm by using OID xref utilities instead.
     Before this you could only use some ECC ciphersuites with SHA1 only.
     [Steve Henson]

1987 1988 1989 1990 1991 1992 1993
  *) Add protection against ECDSA timing attacks as mentioned in the paper
     by Billy Bob Brumley and Nicola Tuveri, see:

	http://eprint.iacr.org/2011/232.pdf

     [Billy Bob Brumley and Nicola Tuveri]

B
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1994 1995 1996 1997
 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]

  *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
     [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1998 1999 2000 2001 2002 2003 2004

  *) Fix bug in string printing code: if *any* escaping is enabled we must
     escape the escape character (backslash) or the resulting string is
     ambiguous.
     [Steve Henson]

 Changes between 1.0.0b and 1.0.0c  [2 Dec 2010]
2005

2006 2007 2008 2009 2010
  *) Disable code workaround for ancient and obsolete Netscape browsers
     and servers: an attacker can use it in a ciphersuite downgrade attack.
     Thanks to Martin Rex for discovering this bug. CVE-2010-4180
     [Steve Henson]

2011 2012 2013 2014 2015 2016
  *) Fixed J-PAKE implementation error, originally discovered by
     Sebastien Martini, further info and confirmation from Stefan
     Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
     [Ben Laurie]

 Changes between 1.0.0a and 1.0.0b  [16 Nov 2010]
2017

2018 2019 2020
  *) Fix extension code to avoid race conditions which can result in a buffer
     overrun vulnerability: resumed sessions must not be modified as they can
     be shared by multiple threads. CVE-2010-3864
B
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2021
     [Steve Henson]
2022

2023 2024 2025 2026
  *) Fix WIN32 build system to correctly link an ENGINE directory into
     a DLL. 
     [Steve Henson]

2027 2028
 Changes between 1.0.0 and 1.0.0a  [01 Jun 2010]

2029 2030 2031
  *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 
     (CVE-2010-1633)
     [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
2032

2033
 Changes between 0.9.8n and 1.0.0  [29 Mar 2010]
2034

2035 2036 2037 2038 2039
  *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
     context. The operation can be customised via the ctrl mechanism in
     case ENGINEs want to include additional functionality.
     [Steve Henson]

2040 2041 2042
  *) Tolerate yet another broken PKCS#8 key format: private key value negative.
     [Steve Henson]

D
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2043 2044 2045 2046
  *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
     output hashes compatible with older versions of OpenSSL.
     [Willy Weisz <weisz@vcpc.univie.ac.at>]

2047 2048 2049 2050 2051
  *) Fix compression algorithm handling: if resuming a session use the
     compression algorithm of the resumed session instead of determining
     it from client hello again. Don't allow server to change algorithm.
     [Steve Henson]

2052 2053 2054 2055 2056 2057 2058 2059
  *) Add load_crls() function to apps tidying load_certs() too. Add option
     to verify utility to allow additional CRLs to be included.
     [Steve Henson]

  *) Update OCSP request code to permit adding custom headers to the request:
     some responders need this.
     [Steve Henson]

2060 2061 2062 2063
  *) The function EVP_PKEY_sign() returns <=0 on error: check return code
     correctly.
     [Julia Lawall <julia@diku.dk>]

2064 2065 2066 2067 2068
  *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
     needlessly dereferenced structures, used obsolete functions and
     didn't handle all updated verify codes correctly.
     [Steve Henson]

2069
  *) Disable MD2 in the default configuration.
D
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2070 2071
     [Steve Henson]

D
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2072 2073 2074 2075 2076 2077 2078 2079 2080 2081
  *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
     indicate the initial BIO being pushed or popped. This makes it possible
     to determine whether the BIO is the one explicitly called or as a result
     of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
     it handles reference counts correctly and doesn't zero out the I/O bio
     when it is not being explicitly popped. WARNING: applications which
     included workarounds for the old buggy behaviour will need to be modified
     or they could free up already freed BIOs.
     [Steve Henson]

2082 2083 2084
  *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
     renaming to all platforms (within the 0.9.8 branch, this was
     done conditionally on Netware platforms to avoid a name clash).
2085 2086
     [Guenter <lists@gknw.net>]

D
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2087 2088 2089
  *) Add ECDHE and PSK support to DTLS.
     [Michael Tuexen <tuexen@fh-muenster.de>]

D
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2090 2091 2092 2093
  *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
     be used on C++.
     [Steve Henson]

D
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2094 2095 2096 2097 2098 2099 2100 2101
  *) Add "missing" function EVP_MD_flags() (without this the only way to
     retrieve a digest flags is by accessing the structure directly. Update
     EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
     or cipher is registered as in the "from" argument. Print out all
     registered digests in the dgst usage message instead of manually 
     attempting to work them out.
     [Steve Henson]

D
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2102 2103 2104 2105 2106 2107
  *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
     this allows the use of compression and extensions. Change default cipher
     string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
     by default unless an application cipher string requests it.
     [Steve Henson]

2108 2109 2110 2111 2112 2113 2114
  *) Alter match criteria in PKCS12_parse(). It used to try to use local
     key ids to find matching certificates and keys but some PKCS#12 files
     don't follow the (somewhat unwritten) rules and this strategy fails.
     Now just gather all certificates together and the first private key
     then look for the first certificate that matches the key.
     [Steve Henson]

2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127
  *) Support use of registered digest and cipher names for dgst and cipher
     commands instead of having to add each one as a special case. So now
     you can do:

        openssl sha256 foo

     as well as:

        openssl dgst -sha256 foo

     and this works for ENGINE based algorithms too.

     [Steve Henson]
2128

2129 2130 2131
  *) Update Gost ENGINE to support parameter files.
     [Victor B. Wagner <vitus@cryptocom.ru>]

D
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2132 2133 2134
  *) Support GeneralizedTime in ca utility. 
     [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]

2135 2136 2137 2138 2139 2140 2141
  *) Enhance the hash format used for certificate directory links. The new
     form uses the canonical encoding (meaning equivalent names will work
     even if they aren't identical) and uses SHA1 instead of MD5. This form
     is incompatible with the older format and as a result c_rehash should
     be used to rebuild symbolic links.
     [Steve Henson]

2142 2143 2144 2145 2146
  *) Make PKCS#8 the default write format for private keys, replacing the
     traditional format. This form is standardised, more secure and doesn't
     include an implicit MD5 dependency.
     [Steve Henson]

2147 2148 2149 2150
  *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
     committed to OpenSSL should pass this lot as a minimum.
     [Steve Henson]

D
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2151 2152 2153
  *) Add session ticket override functionality for use by EAP-FAST.
     [Jouni Malinen <j@w1.fi>]

2154 2155 2156 2157
  *) Modify HMAC functions to return a value. Since these can be implemented
     in an ENGINE errors can occur.
     [Steve Henson]

B
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2158 2159 2160
  *) Type-checked OBJ_bsearch_ex.
     [Ben Laurie]

2161 2162 2163
  *) Type-checked OBJ_bsearch. Also some constification necessitated
     by type-checking.  Still to come: TXT_DB, bsearch(?),
     OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
B
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2164 2165
     CONF_VALUE.
     [Ben Laurie]
2166

2167 2168 2169 2170 2171 2172 2173 2174
  *) New function OPENSSL_gmtime_adj() to add a specific number of days and
     seconds to a tm structure directly, instead of going through OS
     specific date routines. This avoids any issues with OS routines such
     as the year 2038 bug. New *_adj() functions for ASN1 time structures
     and X509_time_adj_ex() to cover the extended range. The existing
     X509_time_adj() is still usable and will no longer have any date issues.
     [Steve Henson]

2175 2176 2177 2178 2179 2180
  *) Delta CRL support. New use deltas option which will attempt to locate
     and search any appropriate delta CRLs available.

     This work was sponsored by Google.
     [Steve Henson]

2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192
  *) Support for CRLs partitioned by reason code. Reorganise CRL processing
     code and add additional score elements. Validate alternate CRL paths
     as part of the CRL checking and indicate a new error "CRL path validation
     error" in this case. Applications wanting additional details can use
     the verify callback and check the new "parent" field. If this is not
     NULL CRL path validation is taking place. Existing applications wont
     see this because it requires extended CRL support which is off by
     default.

     This work was sponsored by Google.
     [Steve Henson]

2193 2194 2195 2196 2197
  *) Support for freshest CRL extension.

     This work was sponsored by Google.
     [Steve Henson]

2198 2199 2200
  *) Initial indirect CRL support. Currently only supported in the CRLs
     passed directly and not via lookup. Process certificate issuer
     CRL entry extension and lookup CRL entries by bother issuer name
2201
     and serial number. Check and process CRL issuer entry in IDP extension.
2202 2203 2204 2205

     This work was sponsored by Google.
     [Steve Henson]

2206 2207 2208 2209 2210 2211 2212 2213
  *) Add support for distinct certificate and CRL paths. The CRL issuer
     certificate is validated separately in this case. Only enabled if
     an extended CRL support flag is set: this flag will enable additional
     CRL functionality in future.

     This work was sponsored by Google.
     [Steve Henson]

2214 2215 2216 2217 2218
  *) Add support for policy mappings extension.

     This work was sponsored by Google.
     [Steve Henson]

2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230
  *) Fixes to pathlength constraint, self issued certificate handling,
     policy processing to align with RFC3280 and PKITS tests.

     This work was sponsored by Google.
     [Steve Henson]

  *) Support for name constraints certificate extension. DN, email, DNS
     and URI types are currently supported.

     This work was sponsored by Google.
     [Steve Henson]

2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243
  *) To cater for systems that provide a pointer-based thread ID rather
     than numeric, deprecate the current numeric thread ID mechanism and
     replace it with a structure and associated callback type. This
     mechanism allows a numeric "hash" to be extracted from a thread ID in
     either case, and on platforms where pointers are larger than 'long',
     mixing is done to help ensure the numeric 'hash' is usable even if it
     can't be guaranteed unique. The default mechanism is to use "&errno"
     as a pointer-based thread ID to distinguish between threads.

     Applications that want to provide their own thread IDs should now use
     CRYPTO_THREADID_set_callback() to register a callback that will call
     either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().

2244 2245 2246 2247 2248
     Note that ERR_remove_state() is now deprecated, because it is tied
     to the assumption that thread IDs are numeric.  ERR_remove_state(0)
     to free the current thread's error state should be replaced by
     ERR_remove_thread_state(NULL).

2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259
     (This new approach replaces the functions CRYPTO_set_idptr_callback(),
     CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
     OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
     application was previously providing a numeric thread callback that
     was inappropriate for distinguishing threads, then uniqueness might
     have been obtained with &errno that happened immediately in the
     intermediate development versions of OpenSSL; this is no longer the
     case, the numeric thread callback will now override the automatic use
     of &errno.)
     [Geoff Thorpe, with help from Bodo Moeller]

2260 2261 2262
  *) Initial support for different CRL issuing certificates. This covers a
     simple case where the self issued certificates in the chain exist and
     the real CRL issuer is higher in the existing chain.
2263 2264

     This work was sponsored by Google.
2265 2266
     [Steve Henson]

B
Ben Laurie 已提交
2267 2268 2269 2270 2271 2272 2273 2274
  *) Removed effectively defunct crypto/store from the build.
     [Ben Laurie]

  *) Revamp of STACK to provide stronger type-checking. Still to come:
     TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
     ASN1_STRING, CONF_VALUE.
     [Ben Laurie]

B
Ben Laurie 已提交
2275 2276 2277 2278
  *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
     RAM on SSL connections.  This option can save about 34k per idle SSL.
     [Nick Mathewson]

B
Ben Laurie 已提交
2279 2280 2281 2282
  *) Revamp of LHASH to provide stronger type-checking. Still to come:
     STACK, TXT_DB, bsearch, qsort.
     [Ben Laurie]

D
Dr. Stephen Henson 已提交
2283 2284
  *) Initial support for Cryptographic Message Syntax (aka CMS) based
     on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
2285
     support for data, signedData, compressedData, digestedData and
2286 2287 2288
     encryptedData, envelopedData types included. Scripts to check against
     RFC4134 examples draft and interop and consistency checks of many
     content types and variants.
D
Dr. Stephen Henson 已提交
2289 2290
     [Steve Henson]

D
Dr. Stephen Henson 已提交
2291
  *) Add options to enc utility to support use of zlib compression BIO.
D
Dr. Stephen Henson 已提交
2292 2293
     [Steve Henson]

2294 2295 2296 2297 2298 2299
  *) Extend mk1mf to support importing of options and assembly language
     files from Configure script, currently only included in VC-WIN32.
     The assembly language rules can now optionally generate the source
     files from the associated perl scripts.
     [Steve Henson]

2300 2301 2302 2303
  *) Implement remaining functionality needed to support GOST ciphersuites.
     Interop testing has been performed using CryptoPro implementations.
     [Victor B. Wagner <vitus@cryptocom.ru>]

2304 2305 2306
  *) s390x assembler pack.
     [Andy Polyakov]

A
Andy Polyakov 已提交
2307 2308 2309 2310
  *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
     "family."
     [Andy Polyakov]

2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368
  *) Implement Opaque PRF Input TLS extension as specified in
     draft-rescorla-tls-opaque-prf-input-00.txt.  Since this is not an
     official specification yet and no extension type assignment by
     IANA exists, this extension (for now) will have to be explicitly
     enabled when building OpenSSL by providing the extension number
     to use.  For example, specify an option

         -DTLSEXT_TYPE_opaque_prf_input=0x9527

     to the "config" or "Configure" script to enable the extension,
     assuming extension number 0x9527 (which is a completely arbitrary
     and unofficial assignment based on the MD5 hash of the Internet
     Draft).  Note that by doing so, you potentially lose
     interoperability with other TLS implementations since these might
     be using the same extension number for other purposes.

     SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
     opaque PRF input value to use in the handshake.  This will create
     an interal copy of the length-'len' string at 'src', and will
     return non-zero for success.

     To get more control and flexibility, provide a callback function
     by using

          SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
          SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)

     where

          int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
          void *arg;

     Callback function 'cb' will be called in handshakes, and is
     expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
     Argument 'arg' is for application purposes (the value as given to
     SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
     be provided to the callback function).  The callback function
     has to return non-zero to report success: usually 1 to use opaque
     PRF input just if possible, or 2 to enforce use of the opaque PRF
     input.  In the latter case, the library will abort the handshake
     if opaque PRF input is not successfully negotiated.

     Arguments 'peerinput' and 'len' given to the callback function
     will always be NULL and 0 in the case of a client.  A server will
     see the client's opaque PRF input through these variables if
     available (NULL and 0 otherwise).  Note that if the server
     provides an opaque PRF input, the length must be the same as the
     length of the client's opaque PRF input.

     Note that the callback function will only be called when creating
     a new session (session resumption can resume whatever was
     previously negotiated), and will not be called in SSL 2.0
     handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
     SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
     for applications that need to enforce opaque PRF input.

     [Bodo Moeller]

2369 2370 2371 2372 2373
  *) Update ssl code to support digests other than SHA1+MD5 for handshake
     MAC. 

     [Victor B. Wagner <vitus@cryptocom.ru>]

2374 2375 2376 2377 2378
  *) Add RFC4507 support to OpenSSL. This includes the corrections in
     RFC4507bis. The encrypted ticket format is an encrypted encoded
     SSL_SESSION structure, that way new session features are automatically
     supported.

D
Dr. Stephen Henson 已提交
2379 2380 2381 2382 2383 2384
     If a client application caches session in an SSL_SESSION structure
     support is transparent because tickets are now stored in the encoded
     SSL_SESSION.
     
     The SSL_CTX structure automatically generates keys for ticket
     protection in servers so again support should be possible
2385 2386 2387 2388 2389 2390 2391
     with no application modification.

     If a client or server wishes to disable RFC4507 support then the option
     SSL_OP_NO_TICKET can be set.

     Add a TLS extension debugging callback to allow the contents of any client
     or server extensions to be examined.
2392 2393

     This work was sponsored by Google.
2394 2395
     [Steve Henson]

D
Dr. Stephen Henson 已提交
2396 2397 2398 2399
  *) Final changes to avoid use of pointer pointer casts in OpenSSL.
     OpenSSL should now compile cleanly on gcc 4.2
     [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]

2400 2401 2402 2403 2404
  *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
     support including streaming MAC support: this is required for GOST
     ciphersuite support.
     [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]

2405 2406 2407 2408 2409
  *) Add option -stream to use PKCS#7 streaming in smime utility. New
     function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
     to output in BER and PEM format.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
2410 2411 2412
  *) Experimental support for use of HMAC via EVP_PKEY interface. This
     allows HMAC to be handled via the EVP_DigestSign*() interface. The
     EVP_PKEY "key" in this case is the HMAC key, potentially allowing
2413 2414
     ENGINE support for HMAC keys which are unextractable. New -mac and
     -macopt options to dgst utility.
D
Dr. Stephen Henson 已提交
2415 2416
     [Steve Henson]

2417 2418
  *) New option -sigopt to dgst utility. Update dgst to use
     EVP_Digest{Sign,Verify}*. These two changes make it possible to use
B
Bodo Moeller 已提交
2419
     alternative signing paramaters such as X9.31 or PSS in the dgst 
2420 2421 2422
     utility.
     [Steve Henson]

2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438
  *) Change ssl_cipher_apply_rule(), the internal function that does
     the work each time a ciphersuite string requests enabling
     ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
     removing ("!foo+bar") a class of ciphersuites: Now it maintains
     the order of disabled ciphersuites such that those ciphersuites
     that most recently went from enabled to disabled not only stay
     in order with respect to each other, but also have higher priority
     than other disabled ciphersuites the next time ciphersuites are
     enabled again.

     This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
     the same ciphersuites as with "HIGH" alone, but in a specific
     order where the PSK ciphersuites come first (since they are the
     most recently disabled ciphersuites when "HIGH" is parsed).

     Also, change ssl_create_cipher_list() (using this new
B
Bodo Moeller 已提交
2439
     funcionality) such that between otherwise identical
2440 2441 2442 2443
     cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
     the default order.
     [Bodo Moeller]

2444 2445 2446 2447 2448 2449 2450 2451 2452 2453
  *) Change ssl_create_cipher_list() so that it automatically
     arranges the ciphersuites in reasonable order before starting
     to process the rule string.  Thus, the definition for "DEFAULT"
     (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
     remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
     This makes it much easier to arrive at a reasonable default order
     in applications for which anonymous ciphers are OK (meaning
     that you can't actually use DEFAULT).
     [Bodo Moeller; suggested by Victor Duchovni]

2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475
  *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
     processing) into multiple integers instead of setting
     "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
     "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
     (These masks as well as the individual bit definitions are hidden
     away into the non-exported interface ssl/ssl_locl.h, so this
     change to the definition of the SSL_CIPHER structure shouldn't
     affect applications.)  This give us more bits for each of these
     categories, so there is no longer a need to coagulate AES128 and
     AES256 into a single algorithm bit, and to coagulate Camellia128
     and Camellia256 into a single algorithm bit, which has led to all
     kinds of kludges.

     Thus, among other things, the kludge introduced in 0.9.7m and
     0.9.8e for masking out AES256 independently of AES128 or masking
     out Camellia256 independently of AES256 is not needed here in 0.9.9.

     With the change, we also introduce new ciphersuite aliases that
     so far were missing: "AES128", "AES256", "CAMELLIA128", and
     "CAMELLIA256".
     [Bodo Moeller]

N
Nils Larsch 已提交
2476 2477 2478 2479 2480
  *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
     Use the leftmost N bytes of the signature input if the input is
     larger than the prime q (with N being the size in bytes of q).
     [Nils Larsch]

2481 2482 2483 2484
  *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
     it yet and it is largely untested.
     [Steve Henson]

2485 2486 2487
  *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
     [Nils Larsch]

2488
  *) Initial incomplete changes to avoid need for function casts in OpenSSL
2489
     some compilers (gcc 4.2 and later) reject their use. Safestack is
2490
     reimplemented.  Update ASN1 to avoid use of legacy functions. 
2491 2492
     [Steve Henson]

2493 2494 2495
  *) Win32/64 targets are linked with Winsock2.
     [Andy Polyakov]

2496 2497 2498 2499 2500 2501
  *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
     to external functions. This can be used to increase CRL handling 
     efficiency especially when CRLs are very large by (for example) storing
     the CRL revoked certificates in a database.
     [Steve Henson]

2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512
  *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
     new CRLs added to a directory can be used. New command line option
     -verify_return_error to s_client and s_server. This causes real errors
     to be returned by the verify callback instead of carrying on no matter
     what. This reflects the way a "real world" verify callback would behave.
     [Steve Henson]

  *) GOST engine, supporting several GOST algorithms and public key formats.
     Kindly donated by Cryptocom.
     [Cryptocom]

2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524
  *) Partial support for Issuing Distribution Point CRL extension. CRLs
     partitioned by DP are handled but no indirect CRL or reason partitioning
     (yet). Complete overhaul of CRL handling: now the most suitable CRL is
     selected via a scoring technique which handles IDP and AKID in CRLs.
     [Steve Henson]

  *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
     will ultimately be used for all verify operations: this will remove the
     X509_STORE dependency on certificate verification and allow alternative
     lookup methods.  X509_STORE based implementations of these two callbacks.
     [Steve Henson]

2525 2526 2527 2528
  *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
     Modify get_crl() to find a valid (unexpired) CRL if possible.
     [Steve Henson]

2529 2530 2531 2532 2533 2534
  *) New function X509_CRL_match() to check if two CRLs are identical. Normally
     this would be called X509_CRL_cmp() but that name is already used by
     a function that just compares CRL issuer names. Cache several CRL 
     extensions in X509_CRL structure and cache CRLDP in X509.
     [Steve Henson]

2535 2536 2537 2538 2539
  *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
     this maps equivalent X509_NAME structures into a consistent structure.
     Name comparison can then be performed rapidly using memcmp().
     [Steve Henson]

2540 2541
  *) Non-blocking OCSP request processing. Add -timeout option to ocsp 
     utility.
2542 2543
     [Steve Henson]

2544 2545 2546 2547 2548 2549 2550 2551 2552 2553
  *) Allow digests to supply their own micalg string for S/MIME type using
     the ctrl EVP_MD_CTRL_MICALG.
     [Steve Henson]

  *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
     EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
     ctrl. It can then customise the structure before and/or after signing
     if necessary.
     [Steve Henson]

2554 2555 2556 2557 2558
  *) New function OBJ_add_sigid() to allow application defined signature OIDs
     to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
     to free up any added signature OIDs.
     [Steve Henson]

2559 2560 2561 2562 2563 2564
  *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
     EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
     digest and cipher tables. New options added to openssl utility:
     list-message-digest-algorithms and list-cipher-algorithms.
     [Steve Henson]

2565 2566 2567 2568 2569 2570 2571 2572
  *) Change the array representation of binary polynomials: the list
     of degrees of non-zero coefficients is now terminated with -1.
     Previously it was terminated with 0, which was also part of the
     value; thus, the array representation was not applicable to
     polynomials where t^0 has coefficient zero.  This change makes
     the array representation useful in a more general context.
     [Douglas Stebila]

2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605
  *) Various modifications and fixes to SSL/TLS cipher string
     handling.  For ECC, the code now distinguishes between fixed ECDH
     with RSA certificates on the one hand and with ECDSA certificates
     on the other hand, since these are separate ciphersuites.  The
     unused code for Fortezza ciphersuites has been removed.

     For consistency with EDH, ephemeral ECDH is now called "EECDH"
     (not "ECDHE").  For consistency with the code for DH
     certificates, use of ECDH certificates is now considered ECDH
     authentication, not RSA or ECDSA authentication (the latter is
     merely the CA's signing algorithm and not actively used in the
     protocol).

     The temporary ciphersuite alias "ECCdraft" is no longer
     available, and ECC ciphersuites are no longer excluded from "ALL"
     and "DEFAULT".  The following aliases now exist for RFC 4492
     ciphersuites, most of these by analogy with the DH case:

         kECDHr   - ECDH cert, signed with RSA
         kECDHe   - ECDH cert, signed with ECDSA
         kECDH    - ECDH cert (signed with either RSA or ECDSA)
         kEECDH   - ephemeral ECDH
         ECDH     - ECDH cert or ephemeral ECDH

         aECDH    - ECDH cert
         aECDSA   - ECDSA cert
         ECDSA    - ECDSA cert

         AECDH    - anonymous ECDH
         EECDH    - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")

     [Bodo Moeller]

2606 2607 2608 2609
  *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
     Use correct micalg parameters depending on digest(s) in signed message.
     [Steve Henson]

2610 2611 2612
  *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
     an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
     [Steve Henson]
2613

2614
  *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
2615 2616
     an engine to register a method. Add ENGINE lookups for methods and
     functional reference processing.
2617 2618
     [Steve Henson]

B
Bodo Moeller 已提交
2619
  *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
2620 2621 2622 2623
     EVP_{Sign,Verify}* which allow an application to customise the signature
     process.
     [Steve Henson]

2624 2625 2626 2627 2628
  *) New -resign option to smime utility. This adds one or more signers
     to an existing PKCS#7 signedData structure. Also -md option to use an
     alternative message digest algorithm for signing.
     [Steve Henson]

2629 2630 2631 2632 2633
  *) Tidy up PKCS#7 routines and add new functions to make it easier to
     create PKCS7 structures containing multiple signers. Update smime
     application to support multiple signers.
     [Steve Henson]

2634 2635 2636 2637
  *) New -macalg option to pkcs12 utility to allow setting of an alternative
     digest MAC.
     [Steve Henson]

2638
  *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
2639
     Reorganize PBE internals to lookup from a static table using NIDs,
2640 2641 2642
     add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
     EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
     PRF which will be automatically used with PBES2.
2643 2644
     [Steve Henson]

D
Typo.  
Dr. Stephen Henson 已提交
2645
  *) Replace the algorithm specific calls to generate keys in "req" with the
2646 2647 2648
     new API.
     [Steve Henson]

2649 2650 2651 2652 2653 2654
  *) Update PKCS#7 enveloped data routines to use new API. This is now
     supported by any public key method supporting the encrypt operation. A
     ctrl is added to allow the public key algorithm to examine or modify
     the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
     a no op.
     [Steve Henson]
R
Richard Levitte 已提交
2655

2656 2657 2658
  *) Add a ctrl to asn1 method to allow a public key algorithm to express
     a default digest type to use. In most cases this will be SHA1 but some
     algorithms (such as GOST) need to specify an alternative digest. The
2659
     return value indicates how strong the preference is 1 means optional and
2660 2661 2662 2663 2664 2665
     2 is mandatory (that is it is the only supported type). Modify
     ASN1_item_sign() to accept a NULL digest argument to indicate it should
     use the default md. Update openssl utilities to use the default digest
     type for signing if it is not explicitly indicated.
     [Steve Henson]

2666 2667 2668 2669 2670 2671
  *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 
     EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
     signing method from the key type. This effectively removes the link
     between digests and public key types.
     [Steve Henson]

2672 2673 2674 2675 2676 2677
  *) Add an OID cross reference table and utility functions. Its purpose is to
     translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
     rsaEncryption. This will allow some of the algorithm specific hackery
     needed to use the correct OID to be removed. 
     [Steve Henson]

2678 2679 2680 2681 2682
  *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
     structures for PKCS7_sign(). They are now set up by the relevant public
     key ASN1 method.
     [Steve Henson]

2683 2684 2685
  *) Add provisional EC pkey method with support for ECDSA and ECDH.
     [Steve Henson]

2686 2687 2688 2689
  *) Add support for key derivation (agreement) in the API, DH method and
     pkeyutl.
     [Steve Henson]

2690 2691 2692 2693 2694 2695 2696
  *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
     public and private key formats. As a side effect these add additional 
     command line functionality not previously available: DSA signatures can be
     generated and verified using pkeyutl and DH key support and generation in
     pkey, genpkey.
     [Steve Henson]

U
Ulf Möller 已提交
2697 2698 2699 2700 2701 2702 2703
  *) BeOS support.
     [Oliver Tappe <zooey@hirschkaefer.de>]

  *) New make target "install_html_docs" installs HTML renditions of the
     manual pages.
     [Oliver Tappe <zooey@hirschkaefer.de>]

2704
  *) New utility "genpkey" this is analogous to "genrsa" etc except it can
D
Dr. Stephen Henson 已提交
2705 2706 2707 2708 2709
     generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
     support key and parameter generation and add initial key generation
     functionality for RSA.
     [Steve Henson]

2710 2711 2712 2713 2714
  *) Add functions for main EVP_PKEY_method operations. The undocumented
     functions EVP_PKEY_{encrypt,decrypt} have been renamed to
     EVP_PKEY_{encrypt,decrypt}_old. 
     [Steve Henson]

2715 2716 2717 2718
  *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
     key API, doesn't do much yet.
     [Steve Henson]

2719 2720 2721 2722 2723
  *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
     public key algorithms. New option to openssl utility:
     "list-public-key-algorithms" to print out info.
     [Steve Henson]

2724 2725 2726 2727
  *) Implement the Supported Elliptic Curves Extension for
     ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
     [Douglas Stebila]

2728 2729 2730 2731
  *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
     EVP_CIPHER structures to avoid later problems in EVP_cleanup().
     [Steve Henson]

2732
  *) New utilities pkey and pkeyparam. These are similar to algorithm specific
D
Dr. Stephen Henson 已提交
2733
     utilities such as rsa, dsa, dsaparam etc except they process any key
2734
     type.
2735 2736
     [Steve Henson]

2737 2738 2739 2740 2741 2742
  *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 
     functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
     EVP_PKEY_print_param() to print public key data from an EVP_PKEY
     structure.
     [Steve Henson]

2743 2744 2745 2746 2747 2748 2749 2750
  *) Initial support for pluggable public key ASN1.
     De-spaghettify the public key ASN1 handling. Move public and private
     key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
     algorithm specific handling to a single module within the relevant
     algorithm directory. Add functions to allow (near) opaque processing
     of public and private key structures.
     [Steve Henson]

2751 2752 2753 2754
  *) Implement the Supported Point Formats Extension for
     ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
     [Douglas Stebila]

2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770
  *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
     for the psk identity [hint] and the psk callback functions to the
     SSL_SESSION, SSL and SSL_CTX structure.
     
     New ciphersuites:
         PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
         PSK-AES256-CBC-SHA
 
     New functions:
         SSL_CTX_use_psk_identity_hint
         SSL_get_psk_identity_hint
         SSL_get_psk_identity
         SSL_use_psk_identity_hint

     [Mika Kousa and Pasi Eronen of Nokia Corporation]

2771 2772
  *) Add RFC 3161 compliant time stamp request creation, response generation
     and response verification functionality.
2773
     [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
2774

2775 2776 2777 2778 2779 2780 2781
  *) Add initial support for TLS extensions, specifically for the server_name
     extension so far.  The SSL_SESSION, SSL_CTX, and SSL data structures now
     have new members for a host name.  The SSL data structure has an
     additional member SSL_CTX *initial_ctx so that new sessions can be
     stored in that context to allow for session resumption, even after the
     SSL has been switched to a new SSL_CTX in reaction to a client's
     server_name extension.
2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794

     New functions (subject to change):

         SSL_get_servername()
         SSL_get_servername_type()
         SSL_set_SSL_CTX()

     New CTRL codes and macros (subject to change):

         SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
                                 - SSL_CTX_set_tlsext_servername_callback()
         SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
                                      - SSL_CTX_set_tlsext_servername_arg()
N
Nils Larsch 已提交
2795
         SSL_CTRL_SET_TLSEXT_HOSTNAME           - SSL_set_tlsext_host_name()
B
Bodo Möller 已提交
2796

2797 2798 2799 2800 2801 2802
     openssl s_client has a new '-servername ...' option.

     openssl s_server has new options '-servername_host ...', '-cert2 ...',
     '-key2 ...', '-servername_fatal' (subject to change).  This allows
     testing the HostName extension for a specific single host name ('-cert'
     and '-key' remain fallbacks for handshakes without HostName
2803
     negotiation).  If the unrecognized_name alert has to be sent, this by
2804 2805
     default is a warning; it becomes fatal with the '-servername_fatal'
     option.
B
Bodo Möller 已提交
2806

2807
     [Peter Sylvester,  Remy Allais, Christophe Renou]
B
Bodo Möller 已提交
2808

2809 2810 2811
  *) Whirlpool hash implementation is added.
     [Andy Polyakov]

2812 2813 2814 2815 2816 2817 2818
  *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
     bn(64,32). Because of instruction set limitations it doesn't have
     any negative impact on performance. This was done mostly in order
     to make it possible to share assembler modules, such as bn_mul_mont
     implementations, between 32- and 64-bit builds without hassle.
     [Andy Polyakov]

2819 2820 2821 2822 2823
  *) Move code previously exiled into file crypto/ec/ec2_smpt.c
     to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
     macro.
     [Bodo Moeller]

2824 2825 2826 2827 2828 2829
  *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
     dedicated Montgomery multiplication procedure, is introduced.
     BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
     "64-bit" performance on certain 32-bit targets.
     [Andy Polyakov]

2830 2831 2832 2833 2834 2835
  *) New option SSL_OP_NO_COMP to disable use of compression selectively
     in SSL structures. New SSL ctrl to set maximum send fragment size. 
     Save memory by seeting the I/O buffer sizes dynamically instead of
     using the maximum available value.
     [Steve Henson]

B
Bodo Möller 已提交
2836 2837 2838 2839
  *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
     in addition to the text details.
     [Bodo Moeller]

2840 2841 2842 2843 2844
  *) Very, very preliminary EXPERIMENTAL support for printing of general
     ASN1 structures. This currently produces rather ugly output and doesn't
     handle several customised structures at all.
     [Steve Henson]

2845 2846 2847 2848 2849
  *) Integrated support for PVK file format and some related formats such
     as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
     these in the 'rsa' and 'dsa' utilities.
     [Steve Henson]

2850 2851 2852
  *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
     [Steve Henson]

2853 2854 2855
  *) Remove the ancient ASN1_METHOD code. This was only ever used in one
     place for the (very old) "NETSCAPE" format certificates which are now
     handled using new ASN1 code equivalents.
2856
     [Steve Henson]
2857

2858 2859 2860 2861 2862
  *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
     pointer and make the SSL_METHOD parameter in SSL_CTX_new,
     SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
     [Nils Larsch]

2863
  *) Modify CRL distribution points extension code to print out previously
2864 2865
     unsupported fields. Enhance extension setting code to allow setting of
     all fields.
2866 2867
     [Steve Henson]

2868
  *) Add print and set support for Issuing Distribution Point CRL extension.
2869
     [Steve Henson]
R
Richard Levitte 已提交
2870

2871 2872
  *) Change 'Configure' script to enable Camellia by default.
     [NTT]
2873

2874 2875 2876 2877 2878 2879 2880 2881
 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]

  *) When rejecting SSL/TLS records due to an incorrect version number, never
     update s->server with a new major version number.  As of
     - OpenSSL 0.9.8m if 'short' is a 16-bit type,
     - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
     the previous behavior could result in a read attempt at NULL when
     receiving specific incorrect SSL/TLS records once record payload
2882 2883
     protection is active.  (CVE-2010-0740)
     [Bodo Moeller, Adam Langley <agl@chromium.org>]
2884

2885 2886 2887
  *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 
     could be crashed if the relevant tables were not present (e.g. chrooted).
     [Tomas Hoger <thoger@redhat.com>]
2888

2889
 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2890 2891 2892

  *) Always check bn_wexpend() return values for failure.  (CVE-2009-3245)
     [Martin Olsson, Neel Mehta]
B
Bodo Möller 已提交
2893 2894 2895 2896

  *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
     accommodate for stack sorting, always a write lock!).
     [Bodo Moeller]
D
Dr. Stephen Henson 已提交
2897

D
Dr. Stephen Henson 已提交
2898 2899 2900 2901 2902
  *) On some versions of WIN32 Heap32Next is very slow. This can cause
     excessive delays in the RAND_poll(): over a minute. As a workaround
     include a time check in the inner Heap32Next loop too.
     [Steve Henson]

D
typo  
Dr. Stephen Henson 已提交
2903
  *) The code that handled flushing of data in SSL/TLS originally used the
D
Dr. Stephen Henson 已提交
2904 2905 2906 2907 2908 2909 2910
     BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
     the problem outlined in PR#1949. The fix suggested there however can
     trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
     of Apache). So instead simplify the code to flush unconditionally.
     This should be fine since flushing with no data to flush is a no op.
     [Steve Henson]

2911 2912 2913 2914 2915
  *) Handle TLS versions 2.0 and later properly and correctly use the
     highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
     off ancient servers have a habit of sticking around for a while...
     [Steve Henson]

2916 2917
  *) Modify compression code so it frees up structures without using the
     ex_data callbacks. This works around a problem where some applications
D
Typo  
Dr. Stephen Henson 已提交
2918
     call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2919 2920 2921 2922 2923 2924
     restarting) then use compression (e.g. SSL with compression) later.
     This results in significant per-connection memory leaks and
     has caused some security issues including CVE-2008-1678 and
     CVE-2009-4355.
     [Steve Henson]

2925 2926 2927 2928
  *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
     change when encrypting or decrypting.
     [Bodo Moeller]

2929
  *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2930
     connect and renegotiate with servers which do not support RI.
2931 2932 2933
     Until RI is more widely deployed this option is enabled by default.
     [Steve Henson]

2934 2935 2936
  *) Add "missing" ssl ctrls to clear options and mode.
     [Steve Henson]

2937
  *) If client attempts to renegotiate and doesn't support RI respond with
2938 2939 2940 2941 2942 2943 2944 2945
     a no_renegotiation alert as required by RFC5746.  Some renegotiating
     TLS clients will continue a connection gracefully when they receive
     the alert. Unfortunately OpenSSL mishandled this alert and would hang
     waiting for a server hello which it will never receive. Now we treat a
     received no_renegotiation alert as a fatal error. This is because
     applications requesting a renegotiation might well expect it to succeed
     and would have no code in place to handle the server denying it so the
     only safe thing to do is to terminate the connection.
2946 2947
     [Steve Henson]

2948 2949 2950 2951 2952
  *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
     peer supports secure renegotiation and 0 otherwise. Print out peer
     renegotiation support in s_client/s_server.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
2953 2954 2955 2956
  *) Replace the highly broken and deprecated SPKAC certification method with
     the updated NID creation version. This should correctly handle UTF8.
     [Steve Henson]

2957 2958 2959
  *) Implement RFC5746. Re-enable renegotiation but require the extension
     as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
     turns out to be a bad idea. It has been replaced by
2960 2961 2962
     SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
     SSL_CTX_set_options(). This is really not recommended unless you
     know what you are doing.
2963
     [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2964

2965 2966 2967 2968
  *) Fixes to stateless session resumption handling. Use initial_ctx when
     issuing and attempting to decrypt tickets in case it has changed during
     servername handling. Use a non-zero length session ID when attempting
     stateless session resumption: this makes it possible to determine if
2969
     a resumption has occurred immediately after receiving server hello
2970 2971 2972 2973
     (several places in OpenSSL subtly assume this) instead of later in
     the handshake.
     [Steve Henson]

2974 2975 2976 2977 2978 2979
  *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
     CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
     fixes for a few places where the return code is not checked
     correctly.
     [Julia Lawall <julia@diku.dk>]

2980 2981 2982 2983
  *) Add --strict-warnings option to Configure script to include devteam
     warnings in other configurations.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
2984
  *) Add support for --libdir option and LIBDIR variable in makefiles. This
2985
     makes it possible to install openssl libraries in locations which
D
Dr. Stephen Henson 已提交
2986 2987 2988 2989
     have names other than "lib", for example "/usr/lib64" which some
     systems need.
     [Steve Henson, based on patch from Jeremy Utley]

2990 2991 2992 2993
  *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
     X690 8.9.12 and can produce some misleading textual output of OIDs.
     [Steve Henson, reported by Dan Kaminsky]

2994 2995 2996 2997 2998 2999
  *) Delete MD2 from algorithm tables. This follows the recommendation in
     several standards that it is not used in new applications due to
     several cryptographic weaknesses. For binary compatibility reasons
     the MD2 API is still compiled in by default.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
3000 3001 3002 3003
  *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
     and restored.
     [Steve Henson]

3004 3005 3006 3007 3008
  *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
     OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
     clash.
     [Guenter <lists@gknw.net>]

D
Dr. Stephen Henson 已提交
3009 3010 3011 3012 3013
  *) Fix the server certificate chain building code to use X509_verify_cert(),
     it used to have an ad-hoc builder which was unable to cope with anything
     other than a simple chain.
     [David Woodhouse <dwmw2@infradead.org>, Steve Henson]

D
Dr. Stephen Henson 已提交
3014 3015 3016 3017
  *) Don't check self signed certificate signatures in X509_verify_cert()
     by default (a flag can override this): it just wastes time without
     adding any security. As a useful side effect self signed root CAs
     with non-FIPS digests are now usable in FIPS mode.
D
Dr. Stephen Henson 已提交
3018 3019
     [Steve Henson]

3020 3021 3022 3023 3024 3025 3026
  *) In dtls1_process_out_of_seq_message() the check if the current message
     is already buffered was missing. For every new message was memory
     allocated, allowing an attacker to perform an denial of service attack
     with sending out of seq handshake messages until there is no memory
     left. Additionally every future messege was buffered, even if the
     sequence number made no sense and would be part of another handshake.
     So only messages with sequence numbers less than 10 in advance will be
3027
     buffered.  (CVE-2009-1378)
3028 3029 3030 3031 3032 3033
     [Robin Seggelmann, discovered by Daniel Mentz] 	

  *) Records are buffered if they arrive with a future epoch to be
     processed after finishing the corresponding handshake. There is
     currently no limitation to this buffer allowing an attacker to perform
     a DOS attack with sending records with future epochs until there is no
3034
     memory left. This patch adds the pqueue_size() function to determine
3035
     the size of a buffer and limits the record buffer to 100 entries.
3036
     (CVE-2009-1377)
3037 3038 3039
     [Robin Seggelmann, discovered by Daniel Mentz] 	

  *) Keep a copy of frag->msg_header.frag_len so it can be used after the
3040
     parent structure is freed.  (CVE-2009-1379)
3041 3042
     [Daniel Mentz] 	

D
Dr. Stephen Henson 已提交
3043 3044 3045
  *) Handle non-blocking I/O properly in SSL_shutdown() call.
     [Darryl Miles <darryl-mailinglists@netbauds.net>]

D
Dr. Stephen Henson 已提交
3046 3047 3048
  *) Add 2.5.4.* OIDs
     [Ilya O. <vrghost@gmail.com>]

3049 3050 3051 3052 3053 3054 3055 3056 3057 3058
 Changes between 0.9.8k and 0.9.8l  [5 Nov 2009]

  *) Disable renegotiation completely - this fixes a severe security
     problem (CVE-2009-3555) at the cost of breaking all
     renegotiation. Renegotiation can be re-enabled by setting
     SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
     run-time. This is really not recommended unless you know what
     you're doing.
     [Ben Laurie]

D
Dr. Stephen Henson 已提交
3059
 Changes between 0.9.8j and 0.9.8k  [25 Mar 2009]
D
Dr. Stephen Henson 已提交
3060

D
Dr. Stephen Henson 已提交
3061 3062 3063 3064 3065
  *) Don't set val to NULL when freeing up structures, it is freed up by
     underlying code. If sizeof(void *) > sizeof(long) this can result in
     zeroing past the valid field. (CVE-2009-0789)
     [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]

D
Dr. Stephen Henson 已提交
3066 3067 3068 3069 3070
  *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
     checked correctly. This would allow some invalid signed attributes to
     appear to verify correctly. (CVE-2009-0591)
     [Ivan Nestlerode <inestlerode@us.ibm.com>]

D
Dr. Stephen Henson 已提交
3071 3072 3073 3074 3075
  *) Reject UniversalString and BMPString types with invalid lengths. This
     prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
     a legal length. (CVE-2009-0590)
     [Steve Henson]

D
Dr. Stephen Henson 已提交
3076 3077 3078 3079 3080
  *) Set S/MIME signing as the default purpose rather than setting it 
     unconditionally. This allows applications to override it at the store
     level.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
3081 3082 3083 3084
  *) Permit restricted recursion of ASN1 strings. This is needed in practice
     to handle some structures.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
3085 3086 3087 3088
  *) Improve efficiency of mem_gets: don't search whole buffer each time
     for a '\n'
     [Jeremy Shapiro <jnshapir@us.ibm.com>]

B
Bodo Möller 已提交
3089 3090 3091
  *) New -hex option for openssl rand.
     [Matthieu Herrb]

3092 3093 3094
  *) Print out UTF8String and NumericString when parsing ASN1.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
3095 3096
  *) Support NumericString type for name components.
     [Steve Henson]
3097

B
Ben Laurie 已提交
3098 3099 3100 3101
  *) Allow CC in the environment to override the automatically chosen
     compiler. Note that nothing is done to ensure flags work with the
     chosen compiler.
     [Ben Laurie]
3102

D
Dr. Stephen Henson 已提交
3103 3104 3105 3106 3107
 Changes between 0.9.8i and 0.9.8j  [07 Jan 2009]

  *) Properly check EVP_VerifyFinal() and similar return values
     (CVE-2008-5077).
     [Ben Laurie, Bodo Moeller, Google Security Team]
3108

B
Ben Laurie 已提交
3109 3110 3111
  *) Enable TLS extensions by default.
     [Ben Laurie]

3112
  *) Allow the CHIL engine to be loaded, whether the application is
3113 3114 3115
     multithreaded or not. (This does not release the developer from the
     obligation to set up the dynamic locking callbacks.)
     [Sander Temme <sander@temme.net>]
3116 3117 3118 3119

  *) Use correct exit code if there is an error in dgst command.
     [Steve Henson; problem pointed out by Roland Dirlewanger]

3120 3121 3122 3123 3124 3125
  *) Tweak Configure so that you need to say "experimental-jpake" to enable
     JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
     [Bodo Moeller]

  *) Add experimental JPAKE support, including demo authentication in
     s_client and s_server.
B
Ben Laurie 已提交
3126 3127
     [Ben Laurie]

3128 3129 3130
  *) Set the comparison function in v3_addr_canonize().
     [Rob Austein <sra@hactrn.net>]

B
Ben Laurie 已提交
3131 3132 3133
  *) Add support for XMPP STARTTLS in s_client.
     [Philip Paeps <philip@freebsd.org>]

3134 3135 3136 3137 3138 3139 3140
  *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
     to ensure that even with this option, only ciphersuites in the
     server's preference list will be accepted.  (Note that the option
     applies only when resuming a session, so the earlier behavior was
     just about the algorithm choice for symmetric cryptography.)
     [Bodo Moeller]

3141
 Changes between 0.9.8h and 0.9.8i  [15 Sep 2008]
D
Dr. Stephen Henson 已提交
3142

3143 3144 3145 3146
  *) Fix NULL pointer dereference if a DTLS server received
     ChangeCipherSpec as first record (CVE-2009-1386).
     [PR #1679]

3147
  *) Fix a state transition in s3_srvr.c and d1_srvr.c
B
Bodo Möller 已提交
3148 3149 3150
     (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
     [Nagendra Modadugu]

3151 3152 3153 3154 3155 3156 3157 3158 3159 3160
  *) The fix in 0.9.8c that supposedly got rid of unsafe
     double-checked locking was incomplete for RSA blinding,
     addressing just one layer of what turns out to have been
     doubly unsafe triple-checked locking.

     So now fix this for real by retiring the MONT_HELPER macro
     in crypto/rsa/rsa_eay.c.

     [Bodo Moeller; problem pointed out by Marius Schilder]

3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176
  *) Various precautionary measures:

     - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).

     - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
       (NB: This would require knowledge of the secret session ticket key
       to exploit, in which case you'd be SOL either way.)

     - Change bn_nist.c so that it will properly handle input BIGNUMs
       outside the expected range.

     - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
       builds.

     [Neel Mehta, Bodo Moeller]

3177 3178 3179 3180
  *) Allow engines to be "soft loaded" - i.e. optionally don't die if
     the load fails. Useful for distros.
     [Ben Laurie and the FreeBSD team]

D
Dr. Stephen Henson 已提交
3181 3182 3183
  *) Add support for Local Machine Keyset attribute in PKCS#12 files.
     [Steve Henson]

3184 3185 3186
  *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
     [Huang Ying]

D
Dr. Stephen Henson 已提交
3187
  *) Expand ENGINE to support engine supplied SSL client certificate functions.
D
Dr. Stephen Henson 已提交
3188 3189

     This work was sponsored by Logica.
D
Dr. Stephen Henson 已提交
3190 3191
     [Steve Henson]

3192 3193
  *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
     keystores. Support for SSL/TLS client authentication too.
D
Dr. Stephen Henson 已提交
3194
     Not compiled unless enable-capieng specified to Configure.
D
Dr. Stephen Henson 已提交
3195 3196

     This work was sponsored by Logica.
D
Dr. Stephen Henson 已提交
3197 3198
     [Steve Henson]

B
Bodo Moeller 已提交
3199
  *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
3200
     ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
B
Bodo Moeller 已提交
3201
     attribute creation routines such as certifcate requests and PKCS#12
3202 3203
     files.
     [Steve Henson]
3204

B
Bodo Möller 已提交
3205
 Changes between 0.9.8g and 0.9.8h  [28 May 2008]
3206

B
Bodo Möller 已提交
3207
  *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
B
Bodo Moeller 已提交
3208
     handshake which could lead to a cilent crash as found using the
B
Bodo Möller 已提交
3209 3210 3211
     Codenomicon TLS test suite (CVE-2008-1672) 
     [Steve Henson, Mark Cox]

B
Bodo Möller 已提交
3212 3213 3214 3215
  *) Fix double free in TLS server name extensions which could lead to
     a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 
     [Joe Orton]

3216 3217 3218 3219 3220 3221
  *) Clear error queue in SSL_CTX_use_certificate_chain_file()

     Clear the error queue to ensure that error entries left from
     older function calls do not interfere with the correct operation.
     [Lutz Jaenicke, Erik de Castro Lopo]

3222 3223 3224 3225 3226 3227 3228 3229
  *) Remove root CA certificates of commercial CAs:

     The OpenSSL project does not recommend any specific CA and does not
     have any policy with respect to including or excluding any CA.
     Therefore it does not make any sense to ship an arbitrary selection
     of root CA certificates with the OpenSSL software.
     [Lutz Jaenicke]

3230 3231 3232 3233 3234 3235
  *) RSA OAEP patches to fix two separate invalid memory reads.
     The first one involves inputs when 'lzero' is greater than
     'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
     before the beginning of from). The second one involves inputs where
     the 'db' section contains nothing but zeroes (there is a one-byte
     invalid read after the end of 'db').
D
Typo.  
Dr. Stephen Henson 已提交
3236
     [Ivan Nestlerode <inestlerode@us.ibm.com>]
3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256

  *) Partial backport from 0.9.9-dev:

     Introduce bn_mul_mont (dedicated Montgomery multiplication
     procedure) as a candidate for BIGNUM assembler implementation.
     While 0.9.9-dev uses assembler for various architectures, only
     x86_64 is available by default here in the 0.9.8 branch, and
     32-bit x86 is available through a compile-time setting.

     To try the 32-bit x86 assembler implementation, use Configure
     option "enable-montasm" (which exists only for this backport).

     As "enable-montasm" for 32-bit x86 disclaims code stability
     anyway, in this constellation we activate additional code
     backported from 0.9.9-dev for further performance improvements,
     namely BN_from_montgomery_word.  (To enable this otherwise,
     e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)

     [Andy Polyakov (backport partially by Bodo Moeller)]

D
Dr. Stephen Henson 已提交
3257 3258 3259 3260 3261
  *) Add TLS session ticket callback. This allows an application to set
     TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
     values. This is useful for key rollover for example where several key
     sets may exist with different names.
     [Steve Henson]
3262

3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274
  *) Reverse ENGINE-internal logic for caching default ENGINE handles.
     This was broken until now in 0.9.8 releases, such that the only way
     a registered ENGINE could be used (assuming it initialises
     successfully on the host) was to explicitly set it as the default
     for the relevant algorithms. This is in contradiction with 0.9.7
     behaviour and the documentation. With this fix, when an ENGINE is
     registered into a given algorithm's table of implementations, the
     'uptodate' flag is reset so that auto-discovery will be used next
     time a new context for that algorithm attempts to select an
     implementation.
     [Ian Lister (tweaked by Geoff Thorpe)]

3275
  *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
B
Bodo Moeller 已提交
3276
     implemention in the following ways:
3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288

     Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
     hard coded.

     Lack of BER streaming support means one pass streaming processing is
     only supported if data is detached: setting the streaming flag is
     ignored for embedded content.

     CMS support is disabled by default and must be explicitly enabled
     with the enable-cms configuration option.
     [Steve Henson]

3289 3290 3291
  *) Update the GMP engine glue to do direct copies between BIGNUM and
     mpz_t when openssl and GMP use the same limb size. Otherwise the
     existing "conversion via a text string export" trick is still used.
3292
     [Paul Sheer <paulsheer@gmail.com>]
3293

D
Dr. Stephen Henson 已提交
3294 3295 3296 3297
  *) Zlib compression BIO. This is a filter BIO which compressed and
     uncompresses any data passed through it.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310
  *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
     RFC3394 compatible AES key wrapping.
     [Steve Henson]

  *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
     sets string data without copying. X509_ALGOR_set0() and
     X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
     data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
     from an X509_ATTRIBUTE structure optionally checking it occurs only
     once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
     data.
     [Steve Henson]

B
Bodo Möller 已提交
3311 3312 3313 3314
  *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
     to get the expected BN_FLG_CONSTTIME behavior.
     [Bodo Moeller (Google)]
  
3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333
  *) Netware support:

     - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
     - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
     - added some more tests to do_tests.pl
     - fixed RunningProcess usage so that it works with newer LIBC NDKs too
     - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
     - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
       netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
     - various changes to netware.pl to enable gcc-cross builds on Win32
       platform
     - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
     - various changes to fix missing prototype warnings
     - fixed x86nasm.pl to create correct asm files for NASM COFF output
     - added AES, WHIRLPOOL and CPUID assembler code to build files
     - added missing AES assembler make rules to mk1mf.pl
     - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
     [Guenter Knauf <eflash@gmx.net>]

3334 3335 3336 3337 3338 3339 3340
  *) Implement certificate status request TLS extension defined in RFC3546.
     A client can set the appropriate parameters and receive the encoded
     OCSP response via a callback. A server can query the supplied parameters
     and set the encoded OCSP response in the callback. Add simplified examples
     to s_client and s_server.
     [Steve Henson]

3341 3342 3343 3344 3345 3346 3347 3348 3349
 Changes between 0.9.8f and 0.9.8g  [19 Oct 2007]

  *) Fix various bugs:
     + Binary incompatibility of ssl_ctx_st structure
     + DTLS interoperation with non-compliant servers
     + Don't call get_session_cb() without proposed session
     + Fix ia64 assembler code
     [Andy Polyakov, Steve Henson]

3350
 Changes between 0.9.8e and 0.9.8f  [11 Oct 2007]
3351

3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416
  *) DTLS Handshake overhaul. There were longstanding issues with
     OpenSSL DTLS implementation, which were making it impossible for
     RFC 4347 compliant client to communicate with OpenSSL server.
     Unfortunately just fixing these incompatibilities would "cut off"
     pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
     server keeps tolerating non RFC compliant syntax. The opposite is
     not true, 0.9.8f client can not communicate with earlier server.
     This update even addresses CVE-2007-4995.
     [Andy Polyakov]

  *) Changes to avoid need for function casts in OpenSSL: some compilers
     (gcc 4.2 and later) reject their use.
     [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
      Steve Henson]
  
  *) Add RFC4507 support to OpenSSL. This includes the corrections in
     RFC4507bis. The encrypted ticket format is an encrypted encoded
     SSL_SESSION structure, that way new session features are automatically
     supported.

     If a client application caches session in an SSL_SESSION structure
     support is transparent because tickets are now stored in the encoded
     SSL_SESSION.
     
     The SSL_CTX structure automatically generates keys for ticket
     protection in servers so again support should be possible
     with no application modification.

     If a client or server wishes to disable RFC4507 support then the option
     SSL_OP_NO_TICKET can be set.

     Add a TLS extension debugging callback to allow the contents of any client
     or server extensions to be examined.

     This work was sponsored by Google.
     [Steve Henson]

  *) Add initial support for TLS extensions, specifically for the server_name
     extension so far.  The SSL_SESSION, SSL_CTX, and SSL data structures now
     have new members for a host name.  The SSL data structure has an
     additional member SSL_CTX *initial_ctx so that new sessions can be
     stored in that context to allow for session resumption, even after the
     SSL has been switched to a new SSL_CTX in reaction to a client's
     server_name extension.

     New functions (subject to change):

         SSL_get_servername()
         SSL_get_servername_type()
         SSL_set_SSL_CTX()

     New CTRL codes and macros (subject to change):

         SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
                                 - SSL_CTX_set_tlsext_servername_callback()
         SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
                                      - SSL_CTX_set_tlsext_servername_arg()
         SSL_CTRL_SET_TLSEXT_HOSTNAME           - SSL_set_tlsext_host_name()

     openssl s_client has a new '-servername ...' option.

     openssl s_server has new options '-servername_host ...', '-cert2 ...',
     '-key2 ...', '-servername_fatal' (subject to change).  This allows
     testing the HostName extension for a specific single host name ('-cert'
     and '-key' remain fallbacks for handshakes without HostName
3417
     negotiation).  If the unrecognized_name alert has to be sent, this by
3418 3419 3420 3421 3422 3423 3424 3425
     default is a warning; it becomes fatal with the '-servername_fatal'
     option.

     [Peter Sylvester,  Remy Allais, Christophe Renou, Steve Henson]

  *) Add AES and SSE2 assembly language support to VC++ build.
     [Steve Henson]

A
Andy Polyakov 已提交
3426 3427 3428
  *) Mitigate attack on final subtraction in Montgomery reduction.
     [Andy Polyakov]

3429 3430 3431 3432
  *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
     (which previously caused an internal error).
     [Bodo Moeller]

B
Ben Laurie 已提交
3433 3434 3435
  *) Squeeze another 10% out of IGE mode when in != out.
     [Ben Laurie]

B
Ben Laurie 已提交
3436 3437 3438
  *) AES IGE mode speedup.
     [Dean Gaudet (Google)]

B
Bodo Möller 已提交
3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452
  *) Add the Korean symmetric 128-bit cipher SEED (see
     http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
     add SEED ciphersuites from RFC 4162:

        TLS_RSA_WITH_SEED_CBC_SHA      =  "SEED-SHA"
        TLS_DHE_DSS_WITH_SEED_CBC_SHA  =  "DHE-DSS-SEED-SHA"
        TLS_DHE_RSA_WITH_SEED_CBC_SHA  =  "DHE-RSA-SEED-SHA"
        TLS_DH_anon_WITH_SEED_CBC_SHA  =  "ADH-SEED-SHA"

     To minimize changes between patchlevels in the OpenSSL 0.9.8
     series, SEED remains excluded from compilation unless OpenSSL
     is configured with 'enable-seed'.
     [KISA, Bodo Moeller]

3453 3454 3455 3456 3457 3458 3459 3460 3461 3462
  *) Mitigate branch prediction attacks, which can be practical if a
     single processor is shared, allowing a spy process to extract
     information.  For detailed background information, see
     http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
     J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
     and Necessary Software Countermeasures").  The core of the change
     are new versions BN_div_no_branch() and
     BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
     respectively, which are slower, but avoid the security-relevant
     conditional branches.  These are automatically called by BN_div()
3463 3464 3465
     and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
     of the input BIGNUMs.  Also, BN_is_bit_set() has been changed to
     remove a conditional branch.
3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489

     BN_FLG_CONSTTIME is the new name for the previous
     BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
     modular exponentiation.  (Since OpenSSL 0.9.7h, setting this flag
     in the exponent causes BN_mod_exp_mont() to use the alternative
     implementation in BN_mod_exp_mont_consttime().)  The old name
     remains as a deprecated alias.

     Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
     RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
     constant-time implementations for more than just exponentiation.
     Here too the old name is kept as a deprecated alias.

     BN_BLINDING_new() will now use BN_dup() for the modulus so that
     the BN_BLINDING structure gets an independent copy of the
     modulus.  This means that the previous "BIGNUM *m" argument to
     BN_BLINDING_new() and to BN_BLINDING_create_param() now
     essentially becomes "const BIGNUM *m", although we can't actually
     change this in the header file before 0.9.9.  It allows
     RSA_setup_blinding() to use BN_with_flags() on the modulus to
     enable BN_FLG_CONSTTIME.

     [Matthew D Wood (Intel Corp)]

3490 3491 3492 3493 3494 3495 3496 3497 3498 3499
  *) In the SSL/TLS server implementation, be strict about session ID
     context matching (which matters if an application uses a single
     external cache for different purposes).  Previously,
     out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
     set.  This did ensure strict client verification, but meant that,
     with applications using a single external cache for quite
     different requirements, clients could circumvent ciphersuite
     restrictions for a given session ID context by starting a session
     in a different context.
     [Bodo Moeller]
3500

3501 3502 3503 3504 3505
  *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
     a ciphersuite string such as "DEFAULT:RSA" cannot enable
     authentication-only ciphersuites.
     [Bodo Moeller]

3506 3507 3508 3509
  *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
     not complete and could lead to a possible single byte overflow
     (CVE-2007-5135) [Ben Laurie]

3510 3511
 Changes between 0.9.8d and 0.9.8e  [23 Feb 2007]

3512 3513 3514 3515 3516 3517 3518
  *) Since AES128 and AES256 (and similarly Camellia128 and
     Camellia256) share a single mask bit in the logic of
     ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
     kludge to work properly if AES128 is available and AES256 isn't
     (or if Camellia128 is available and Camellia256 isn't).
     [Victor Duchovni]

3519 3520 3521 3522 3523 3524 3525 3526
  *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
     (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
     When a point or a seed is encoded in a BIT STRING, we need to
     prevent the removal of trailing zero bits to get the proper DER
     encoding.  (By default, crypto/asn1/a_bitstr.c assumes the case
     of a NamedBitList, for which trailing 0 bits need to be removed.)
     [Bodo Moeller]

3527 3528 3529 3530 3531 3532 3533
  *) Have SSL/TLS server implementation tolerate "mismatched" record
     protocol version while receiving ClientHello even if the
     ClientHello is fragmented.  (The server can't insist on the
     particular protocol version it has chosen before the ServerHello
     message has informed the client about his choice.)
     [Bodo Moeller]

B
Ben Laurie 已提交
3534 3535 3536
  *) Add RFC 3779 support.
     [Rob Austein for ARIN, Ben Laurie]

3537 3538 3539 3540 3541
  *) Load error codes if they are not already present instead of using a
     static variable. This allows them to be cleanly unloaded and reloaded.
     Improve header file function name parsing.
     [Steve Henson]

3542 3543 3544 3545
  *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
     or CAPABILITY handshake as required by RFCs.
     [Goetz Babin-Ebell]

3546
 Changes between 0.9.8c and 0.9.8d  [28 Sep 2006]
3547

3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561
  *) Introduce limits to prevent malicious keys being able to
     cause a denial of service.  (CVE-2006-2940)
     [Steve Henson, Bodo Moeller]

  *) Fix ASN.1 parsing of certain invalid structures that can result
     in a denial of service.  (CVE-2006-2937)  [Steve Henson]

  *) Fix buffer overflow in SSL_get_shared_ciphers() function. 
     (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]

  *) Fix SSL client code which could crash if connecting to a
     malicious SSLv2 server.  (CVE-2006-4343)
     [Tavis Ormandy and Will Drewry, Google Security Team]

3562 3563
  *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
     match only those.  Before that, "AES256-SHA" would be interpreted
B
Update  
Bodo Möller 已提交
3564 3565
     as a pattern and match "AES128-SHA" too (since AES128-SHA got
     the same strength classification in 0.9.7h) as we currently only
3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582
     have a single AES bit in the ciphersuite description bitmap.
     That change, however, also applied to ciphersuite strings such as
     "RC4-MD5" that intentionally matched multiple ciphersuites --
     namely, SSL 2.0 ciphersuites in addition to the more common ones
     from SSL 3.0/TLS 1.0.

     So we change the selection algorithm again: Naming an explicit
     ciphersuite selects this one ciphersuite, and any other similar
     ciphersuite (same bitmap) from *other* protocol versions.
     Thus, "RC4-MD5" again will properly select both the SSL 2.0
     ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.

     Since SSL 2.0 does not have any ciphersuites for which the
     128/256 bit distinction would be relevant, this works for now.
     The proper fix will be to use different bits for AES128 and
     AES256, which would have avoided the problems from the beginning;
     however, bits are scarce, so we can only do this in a new release
B
Bodo Moeller 已提交
3583
     (not just a patchlevel) when we can change the SSL_CIPHER
3584 3585 3586 3587 3588
     definition to split the single 'unsigned long mask' bitmap into
     multiple values to extend the available space.

     [Bodo Moeller]

3589 3590 3591 3592
 Changes between 0.9.8b and 0.9.8c  [05 Sep 2006]

  *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
     (CVE-2006-4339)  [Ben Laurie and Google Security Team]
D
Dr. Stephen Henson 已提交
3593

B
Ben Laurie 已提交
3594 3595 3596
  *) Add AES IGE and biIGE modes.
     [Ben Laurie]

3597 3598 3599 3600 3601
  *) Change the Unix randomness entropy gathering to use poll() when
     possible instead of select(), since the latter has some
     undesirable limitations.
     [Darryl Miles via Richard Levitte and Bodo Moeller]

B
Bodo Möller 已提交
3602 3603 3604 3605 3606 3607 3608
  *) Disable "ECCdraft" ciphersuites more thoroughly.  Now special
     treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
     cannot be implicitly activated as part of, e.g., the "AES" alias.
     However, please upgrade to OpenSSL 0.9.9[-dev] for
     non-experimental use of the ECC ciphersuites to get TLS extension
     support, which is required for curve and point format negotiation
     to avoid potential handshake problems.
3609 3610
     [Bodo Moeller]

B
Bodo Möller 已提交
3611 3612 3613 3614 3615 3616 3617 3618 3619 3620
  *) Disable rogue ciphersuites:

      - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
      - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
      - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")

     The latter two were purportedly from
     draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
     appear there.

N
Nils Larsch 已提交
3621
     Also deactivate the remaining ciphersuites from
B
Bodo Möller 已提交
3622 3623 3624 3625
     draft-ietf-tls-56-bit-ciphersuites-01.txt.  These are just as
     unofficial, and the ID has long expired.
     [Bodo Moeller]

B
Bodo Moeller 已提交
3626
  *) Fix RSA blinding Heisenbug (problems sometimes occured on
B
Bodo Möller 已提交
3627 3628 3629
     dual-core machines) and other potential thread-safety issues.
     [Bodo Moeller]

3630 3631 3632 3633 3634
  *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
     versions), which is now available for royalty-free use
     (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
     Also, add Camellia TLS ciphersuites from RFC 4132.

B
Bodo Moeller 已提交
3635
     To minimize changes between patchlevels in the OpenSSL 0.9.8
3636 3637 3638 3639
     series, Camellia remains excluded from compilation unless OpenSSL
     is configured with 'enable-camellia'.
     [NTT]

D
Dr. Stephen Henson 已提交
3640 3641
  *) Disable the padding bug check when compression is in use. The padding
     bug check assumes the first packet is of even length, this is not
B
Bodo Moeller 已提交
3642
     necessarily true if compresssion is enabled and can result in false
D
Dr. Stephen Henson 已提交
3643 3644 3645 3646 3647 3648
     positives causing handshake failure. The actual bug test is ancient
     code so it is hoped that implementations will either have fixed it by
     now or any which still have the bug do not support compression.
     [Steve Henson]

 Changes between 0.9.8a and 0.9.8b  [04 May 2006]
R
Richard Levitte 已提交
3649

3650 3651 3652 3653
  *) When applying a cipher rule check to see if string match is an explicit
     cipher suite and only match that one cipher suite if it is.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
3654 3655 3656
  *) Link in manifests for VC++ if needed.
     [Austin Ziegler <halostatue@gmail.com>]

B
Bodo Möller 已提交
3657
  *) Update support for ECC-based TLS ciphersuites according to
B
Bodo Möller 已提交
3658 3659 3660
     draft-ietf-tls-ecc-12.txt with proposed changes (but without
     TLS extensions, which are supported starting with the 0.9.9
     branch, not in the OpenSSL 0.9.8 branch).
B
Bodo Möller 已提交
3661 3662
     [Douglas Stebila]

3663 3664 3665 3666
  *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
     opaque EVP_CIPHER_CTX handling.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
3667 3668 3669 3670 3671 3672 3673 3674 3675 3676
  *) Fixes and enhancements to zlib compression code. We now only use
     "zlib1.dll" and use the default __cdecl calling convention on Win32
     to conform with the standards mentioned here:
           http://www.zlib.net/DLL_FAQ.txt
     Static zlib linking now works on Windows and the new --with-zlib-include
     --with-zlib-lib options to Configure can be used to supply the location
     of the headers and library. Gracefully handle case where zlib library
     can't be loaded.
     [Steve Henson]

3677 3678 3679 3680 3681 3682
  *) Several fixes and enhancements to the OID generation code. The old code
     sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
     handle numbers larger than ULONG_MAX, truncated printing and had a
     non standard OBJ_obj2txt() behaviour.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
3683 3684 3685 3686
  *) Add support for building of engines under engine/ as shared libraries
     under VC++ build system.
     [Steve Henson]

R
Richard Levitte 已提交
3687 3688 3689 3690
  *) Corrected the numerous bugs in the Win32 path splitter in DSO.
     Hopefully, we will not see any false combination of paths any more.
     [Richard Levitte]

3691 3692 3693 3694 3695 3696
 Changes between 0.9.8 and 0.9.8a  [11 Oct 2005]

  *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
     (part of SSL_OP_ALL).  This option used to disable the
     countermeasure against man-in-the-middle protocol-version
     rollback in the SSL 2.0 server implementation, which is a bad
M
Mark J. Cox 已提交
3697
     idea.  (CVE-2005-2969)
3698 3699 3700 3701

     [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
     for Information Security, National Institute of Advanced Industrial
     Science and Technology [AIST], Japan)]
R
Richard Levitte 已提交
3702

3703 3704 3705
  *) Add two function to clear and return the verify parameter flags.
     [Steve Henson]

3706 3707 3708 3709
  *) Keep cipherlists sorted in the source instead of sorting them at
     runtime, thus removing the need for a lock.
     [Nils Larsch]

3710
  *) Avoid some small subgroup attacks in Diffie-Hellman.
3711 3712 3713 3714 3715
     [Nick Mathewson and Ben Laurie]

  *) Add functions for well-known primes.
     [Nick Mathewson]

A
Andy Polyakov 已提交
3716 3717
  *) Extended Windows CE support.
     [Satoshi Nakamura and Andy Polyakov]
3718

3719 3720 3721 3722
  *) Initialize SSL_METHOD structures at compile time instead of during
     runtime, thus removing the need for a lock.
     [Steve Henson]

3723 3724 3725 3726
  *) Make PKCS7_decrypt() work even if no certificate is supplied by
     attempting to decrypt each encrypted key in turn. Add support to
     smime utility.
     [Steve Henson]
R
Richard Levitte 已提交
3727 3728

 Changes between 0.9.7h and 0.9.8  [05 Jul 2005]
3729

B
Bodo Möller 已提交
3730 3731 3732
  [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
  OpenSSL 0.9.8.]

R
Richard Levitte 已提交
3733 3734 3735 3736 3737 3738 3739
  *) Add libcrypto.pc and libssl.pc for those who feel they need them.
     [Richard Levitte]

  *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
     key into the same file any more.
     [Richard Levitte]

3740 3741 3742
  *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
     [Andy Polyakov]

D
Dr. Stephen Henson 已提交
3743 3744 3745
  *) Add -utf8 command line and config file option to 'ca'.
     [Stefan <stf@udoma.org]

R
Richard Levitte 已提交
3746 3747 3748 3749
  *) Removed the macro des_crypt(), as it seems to conflict with some
     libraries.  Use DES_crypt().
     [Richard Levitte]

3750 3751 3752 3753 3754 3755 3756
  *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
     involves renaming the source and generated shared-libs for
     both. The engines will accept the corrected or legacy ids
     ('ncipher' and '4758_cca' respectively) when binding. NB,
     this only applies when building 'shared'.
     [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]

3757 3758 3759 3760 3761
  *) Add attribute functions to EVP_PKEY structure. Modify
     PKCS12_create() to recognize a CSP name attribute and
     use it. Make -CSP option work again in pkcs12 utility.
     [Steve Henson]

3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773
  *) Add new functionality to the bn blinding code:
     - automatic re-creation of the BN_BLINDING parameters after
       a fixed number of uses (currently 32)
     - add new function for parameter creation
     - introduce flags to control the update behaviour of the
       BN_BLINDING parameters
     - hide BN_BLINDING structure
     Add a second BN_BLINDING slot to the RSA structure to improve
     performance when a single RSA object is shared among several
     threads.
     [Nils Larsch]

B
Ben Laurie 已提交
3774 3775 3776
  *) Add support for DTLS.
     [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]

3777 3778 3779 3780
  *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
     to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
     [Walter Goulet]

3781
  *) Remove buggy and incomplete DH cert support from
3782 3783 3784
     ssl/ssl_rsa.c and ssl/s3_both.c
     [Nils Larsch]

3785 3786 3787
  *) Use SHA-1 instead of MD5 as the default digest algorithm for
     the apps/openssl applications.
     [Nils Larsch]
B
Bodo Möller 已提交
3788

3789 3790 3791 3792 3793
  *) Compile clean with "-Wall -Wmissing-prototypes
     -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
     DEBUG_SAFESTACK must also be set.
     [Ben Laurie]

3794
  *) Change ./Configure so that certain algorithms can be disabled by default.
B
Bodo Moeller 已提交
3795
     The new counterpiece to "no-xxx" is "enable-xxx".
3796 3797 3798 3799 3800 3801 3802 3803 3804

     The patented RC5 and MDC2 algorithms will now be disabled unless
     "enable-rc5" and "enable-mdc2", respectively, are specified.

     (IDEA remains enabled despite being patented.  This is because IDEA
     is frequently required for interoperability, and there is no license
     fee for non-commercial use.  As before, "no-idea" can be used to
     avoid this algorithm.)

3805 3806
     [Bodo Moeller]

3807 3808 3809 3810 3811
  *) Add processing of proxy certificates (see RFC 3820).  This work was
     sponsored by KTH (The Royal Institute of Technology in Stockholm) and
     EGEE (Enabling Grids for E-science in Europe).
     [Richard Levitte]

A
Andy Polyakov 已提交
3812 3813 3814 3815
  *) RC4 performance overhaul on modern architectures/implementations, such
     as Intel P4, IA-64 and AMD64.
     [Andy Polyakov]

3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826
  *) New utility extract-section.pl. This can be used specify an alternative
     section number in a pod file instead of having to treat each file as
     a separate case in Makefile. This can be done by adding two lines to the
     pod file:

     =for comment openssl_section:XXX

     The blank line is mandatory.

     [Steve Henson]

D
PR: 910  
Dr. Stephen Henson 已提交
3827 3828 3829 3830 3831
  *) New arguments -certform, -keyform and -pass for s_client and s_server
     to allow alternative format key and certificate files and passphrase
     sources.
     [Steve Henson]

3832 3833 3834 3835 3836 3837 3838 3839
  *) New structure X509_VERIFY_PARAM which combines current verify parameters,
     update associated structures and add various utility functions.

     Add new policy related verify parameters, include policy checking in 
     standard verify code. Enhance 'smime' application with extra parameters
     to support policy checking and print out.
     [Steve Henson]

G
Geoff Thorpe 已提交
3840 3841 3842 3843 3844
  *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
     Nehemiah processors. These extensions support AES encryption in hardware
     as well as RNG (though RNG support is currently disabled).
     [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]

3845 3846 3847
  *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
     [Geoff Thorpe]

3848 3849 3850
  *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
     [Andy Polyakov and a number of other people]

3851 3852 3853 3854
  *) Improved PowerPC platform support. Most notably BIGNUM assembler
     implementation contributed by IBM.
     [Suresh Chari, Peter Waltenberg, Andy Polyakov]

3855 3856 3857 3858 3859
  *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
     exponent rather than 'unsigned long'. There is a corresponding change to
     the new 'rsa_keygen' element of the RSA_METHOD structure.
     [Jelte Jansen, Geoff Thorpe]

3860 3861 3862 3863 3864 3865 3866 3867 3868
  *) Functionality for creating the initial serial number file is now
     moved from CA.pl to the 'ca' utility with a new option -create_serial.

     (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
     number file to 1, which is bound to cause problems.  To avoid
     the problems while respecting compatibility between different 0.9.7
     patchlevels, 0.9.7e  employed 'openssl x509 -next_serial' in
     CA.pl for serial number initialization.  With the new release 0.9.8,
     we can fix the problem directly in the 'ca' utility.)
3869 3870
     [Steve Henson]

B
Bodo Moeller 已提交
3871
  *) Reduced header interdepencies by declaring more opaque objects in
3872 3873 3874 3875 3876 3877 3878 3879
     ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
     give fewer recursive includes, which could break lazy source code - so
     this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
     developers should define this symbol when building and using openssl to
     ensure they track the recommended behaviour, interfaces, [etc], but
     backwards-compatible behaviour prevails when this isn't defined.
     [Geoff Thorpe]

D
Dr. Stephen Henson 已提交
3880 3881 3882
  *) New function X509_POLICY_NODE_print() which prints out policy nodes.
     [Steve Henson]

3883 3884 3885 3886 3887 3888 3889 3890 3891 3892
  *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
     This will generate a random key of the appropriate length based on the 
     cipher context. The EVP_CIPHER can provide its own random key generation
     routine to support keys of a specific form. This is used in the des and 
     3des routines to generate a key of the correct parity. Update S/MIME
     code to use new functions and hence generate correct parity DES keys.
     Add EVP_CHECK_DES_KEY #define to return an error if the key is not 
     valid (weak or incorrect parity).
     [Steve Henson]

3893 3894 3895 3896 3897 3898
  *) Add a local set of CRLs that can be used by X509_verify_cert() as well
     as looking them up. This is useful when the verified structure may contain
     CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
     present unless the new PKCS7_NO_CRL flag is asserted.
     [Steve Henson]

3899 3900 3901 3902 3903 3904
  *) Extend ASN1 oid configuration module. It now additionally accepts the
     syntax:

     shortName = some long name, 1.2.3.4
     [Steve Henson]

3905 3906 3907 3908 3909 3910 3911 3912 3913
  *) Reimplemented the BN_CTX implementation. There is now no more static
     limitation on the number of variables it can handle nor the depth of the
     "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
     information can now expand as required, and rather than having a single
     static array of bignums, BN_CTX now uses a linked-list of such arrays
     allowing it to expand on demand whilst maintaining the usefulness of
     BN_CTX's "bundling".
     [Geoff Thorpe]

3914 3915 3916 3917
  *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
     to allow all RSA operations to function using a single BN_CTX.
     [Geoff Thorpe]

3918 3919 3920 3921 3922
  *) Preliminary support for certificate policy evaluation and checking. This
     is initially intended to pass the tests outlined in "Conformance Testing
     of Relying Party Client Certificate Path Processing Logic" v1.07.
     [Steve Henson]

3923 3924 3925 3926 3927 3928
  *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
     remained unused and not that useful. A variety of other little bignum
     tweaks and fixes have also been made continuing on from the audit (see
     below).
     [Geoff Thorpe]

3929 3930
  *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
     associated ASN1, EVP and SSL functions and old ASN1 macros.
3931
     [Richard Levitte]
3932

3933 3934 3935 3936 3937 3938
  *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
     and this should never fail. So the return value from the use of
     BN_set_word() (which can fail due to needless expansion) is now deprecated;
     if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
     [Geoff Thorpe]

3939 3940
  *) BN_CTX_get() should return zero-valued bignums, providing the same
     initialised value as BN_new().
3941
     [Geoff Thorpe, suggested by Ulf Möller]
3942

3943 3944 3945
  *) Support for inhibitAnyPolicy certificate extension.
     [Steve Henson]

3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959
  *) An audit of the BIGNUM code is underway, for which debugging code is
     enabled when BN_DEBUG is defined. This makes stricter enforcements on what
     is considered valid when processing BIGNUMs, and causes execution to
     assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
     further steps are taken to deliberately pollute unused data in BIGNUM
     structures to try and expose faulty code further on. For now, openssl will
     (in its default mode of operation) continue to tolerate the inconsistent
     forms that it has tolerated in the past, but authors and packagers should
     consider trying openssl and their own applications when compiled with
     these debugging symbols defined. It will help highlight potential bugs in
     their own code, and will improve the test coverage for OpenSSL itself. At
     some point, these tighter rules will become openssl's default to improve
     maintainability, though the assert()s and other overheads will remain only
     in debugging configurations. See bn.h for more details.
3960
     [Geoff Thorpe, Nils Larsch, Ulf Möller]
3961

3962 3963 3964 3965 3966 3967
  *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
     that can only be obtained through BN_CTX_new() (which implicitly
     initialises it). The presence of this function only made it possible
     to overwrite an existing structure (and cause memory leaks).
     [Geoff Thorpe]

3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978
  *) Because of the callback-based approach for implementing LHASH as a
     template type, lh_insert() adds opaque objects to hash-tables and
     lh_doall() or lh_doall_arg() are typically used with a destructor callback
     to clean up those corresponding objects before destroying the hash table
     (and losing the object pointers). So some over-zealous constifications in
     LHASH have been relaxed so that lh_insert() does not take (nor store) the
     objects as "const" and the lh_doall[_arg] callback wrappers are not
     prototyped to have "const" restrictions on the object pointers they are
     given (and so aren't required to cast them away any more).
     [Geoff Thorpe]

3979 3980 3981 3982 3983 3984 3985 3986 3987
  *) The tmdiff.h API was so ugly and minimal that our own timing utility
     (speed) prefers to use its own implementation. The two implementations
     haven't been consolidated as yet (volunteers?) but the tmdiff API has had
     its object type properly exposed (MS_TM) instead of casting to/from "char
     *". This may still change yet if someone realises MS_TM and "ms_time_***"
     aren't necessarily the greatest nomenclatures - but this is what was used
     internally to the implementation so I've used that for now.
     [Geoff Thorpe]

3988
  *) Ensure that deprecated functions do not get compiled when
3989 3990 3991
     OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
     the self-tests were still using deprecated key-generation functions so
     these have been updated also.
3992 3993
     [Geoff Thorpe]

3994
  *) Reorganise PKCS#7 code to separate the digest location functionality
3995
     into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
3996 3997 3998 3999
     New function PKCS7_set_digest() to set the digest type for PKCS#7
     digestedData type. Add additional code to correctly generate the
     digestedData type and add support for this type in PKCS7 initialization
     functions.
4000 4001
     [Steve Henson]

4002 4003
  *) New function PKCS7_set0_type_other() this initializes a PKCS7 
     structure of type "other".
4004 4005
     [Steve Henson]

4006 4007 4008 4009 4010 4011 4012 4013
  *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
     sure the loop does correctly stop and breaking ("division by zero")
     modulus operations are not performed. The (pre-generated) prime
     table crypto/bn/bn_prime.h was already correct, but it could not be
     re-generated on some platforms because of the "division by zero"
     situation in the script.
     [Ralf S. Engelschall]

4014 4015 4016 4017 4018 4019 4020 4021
  *) Update support for ECC-based TLS ciphersuites according to
     draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
     SHA-1 now is only used for "small" curves (where the
     representation of a field element takes up to 24 bytes); for
     larger curves, the field element resulting from ECDH is directly
     used as premaster secret.
     [Douglas Stebila (Sun Microsystems Laboratories)]

B
Bodo Möller 已提交
4022 4023 4024 4025
  *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
     curve secp160r1 to the tests.
     [Douglas Stebila (Sun Microsystems Laboratories)]

4026
  *) Add the possibility to load symbols globally with DSO.
4027
     [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
4028

4029 4030 4031 4032
  *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
     control of the error stack.
     [Richard Levitte]

R
Richard Levitte 已提交
4033 4034 4035
  *) Add support for STORE in ENGINE.
     [Richard Levitte]

4036 4037 4038 4039 4040 4041
  *) Add the STORE type.  The intention is to provide a common interface
     to certificate and key stores, be they simple file-based stores, or
     HSM-type store, or LDAP stores, or...
     NOTE: The code is currently UNTESTED and isn't really used anywhere.
     [Richard Levitte]

4042 4043 4044 4045 4046
  *) Add a generic structure called OPENSSL_ITEM.  This can be used to
     pass a list of arguments to any function as well as provide a way
     for a function to pass data back to the caller.
     [Richard Levitte]

4047 4048 4049 4050 4051 4052
  *) Add the functions BUF_strndup() and BUF_memdup().  BUF_strndup()
     works like BUF_strdup() but can be used to duplicate a portion of
     a string.  The copy gets NUL-terminated.  BUF_memdup() duplicates
     a memory area.
     [Richard Levitte]

4053 4054 4055 4056 4057 4058
  *) Add the function sk_find_ex() which works like sk_find(), but will
     return an index to an element even if an exact match couldn't be
     found.  The index is guaranteed to point at the element where the
     searched-for key would be inserted to preserve sorting order.
     [Richard Levitte]

4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072
  *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
     takes an extra flags argument for optional functionality.  Currently,
     the following flags are defined:

	OBJ_BSEARCH_VALUE_ON_NOMATCH
	This one gets OBJ_bsearch_ex() to return a pointer to the first
	element where the comparing function returns a negative or zero
	number.

	OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
	This one gets OBJ_bsearch_ex() to return a pointer to the first
	element where the comparing function returns zero.  This is useful
	if there are more than one element where the comparing function
	returns zero.
4073
     [Richard Levitte]
4074

4075 4076 4077 4078 4079 4080 4081
  *) Make it possible to create self-signed certificates with 'openssl ca'
     in such a way that the self-signed certificate becomes part of the
     CA database and uses the same mechanisms for serial number generation
     as all other certificate signing.  The new flag '-selfsign' enables
     this functionality.  Adapt CA.sh and CA.pl.in.
     [Richard Levitte]

4082 4083 4084 4085 4086
  *) Add functionality to check the public key of a certificate request
     against a given private.  This is useful to check that a certificate
     request can be signed by that key (self-signing).
     [Richard Levitte]

4087 4088 4089 4090 4091 4092 4093 4094
  *) Make it possible to have multiple active certificates with the same
     subject in the CA index file.  This is done only if the keyword
     'unique_subject' is set to 'no' in the main CA section (default
     if 'CA_default') of the configuration file.  The value is saved
     with the database itself in a separate index attribute file,
     named like the index file with '.attr' appended to the name.
     [Richard Levitte]

D
Dr. Stephen Henson 已提交
4095 4096 4097 4098
  *) Generate muti valued AVAs using '+' notation in config files for
     req and dirName.
     [Steve Henson]

4099 4100 4101
  *) Support for nameConstraints certificate extension.
     [Steve Henson]

4102 4103 4104
  *) Support for policyConstraints certificate extension.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
4105 4106 4107
  *) Support for policyMappings certificate extension.
     [Steve Henson]

4108 4109 4110 4111 4112 4113 4114
  *) Make sure the default DSA_METHOD implementation only uses its
     dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
     and change its own handlers to be NULL so as to remove unnecessary
     indirection. This lets alternative implementations fallback to the
     default implementation more easily.
     [Geoff Thorpe]

4115 4116 4117 4118
  *) Support for directoryName in GeneralName related extensions
     in config files.
     [Steve Henson]

4119 4120 4121 4122
  *) Make it possible to link applications using Makefile.shared.
     Make that possible even when linking against static libraries!
     [Richard Levitte]

4123 4124 4125 4126 4127
  *) Support for single pass processing for S/MIME signing. This now
     means that S/MIME signing can be done from a pipe, in addition
     cleartext signing (multipart/signed type) is effectively streaming
     and the signed data does not need to be all held in memory.

4128
     This is done with a new flag PKCS7_STREAM. When this flag is set
4129 4130 4131 4132 4133
     PKCS7_sign() only initializes the PKCS7 structure and the actual signing
     is done after the data is output (and digests calculated) in
     SMIME_write_PKCS7().
     [Steve Henson]

4134 4135 4136 4137 4138
  *) Add full support for -rpath/-R, both in shared libraries and
     applications, at least on the platforms where it's known how
     to do it.
     [Richard Levitte]

4139
  *) In crypto/ec/ec_mult.c, implement fast point multiplication with
B
typo  
Bodo Möller 已提交
4140
     precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
4141
     will now compute a table of multiples of the generator that
B
typo  
Bodo Möller 已提交
4142
     makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
4143 4144 4145 4146
     faster (notably in the case of a single point multiplication,
     scalar * generator).
     [Nils Larsch, Bodo Moeller]

4147 4148 4149 4150 4151 4152
  *) IPv6 support for certificate extensions. The various extensions
     which use the IP:a.b.c.d can now take IPv6 addresses using the
     formats of RFC1884 2.2 . IPv6 addresses are now also displayed
     correctly.
     [Steve Henson]

4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168
  *) Added an ENGINE that implements RSA by performing private key
     exponentiations with the GMP library. The conversions to and from
     GMP's mpz_t format aren't optimised nor are any montgomery forms
     cached, and on x86 it appears OpenSSL's own performance has caught up.
     However there are likely to be other architectures where GMP could
     provide a boost. This ENGINE is not built in by default, but it can be
     specified at Configure time and should be accompanied by the necessary
     linker additions, eg;
         ./config -DOPENSSL_USE_GMP -lgmp
     [Geoff Thorpe]

  *) "openssl engine" will not display ENGINE/DSO load failure errors when
     testing availability of engines with "-t" - the old behaviour is
     produced by increasing the feature's verbosity with "-tt".
     [Geoff Thorpe]

4169 4170 4171 4172 4173 4174
  *) ECDSA routines: under certain error conditions uninitialized BN objects
     could be freed. Solution: make sure initialization is performed early
     enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
     via PR#459)
     [Lutz Jaenicke]

4175 4176 4177
  *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
     and DH_METHOD (eg. by ENGINE implementations) to override the normal
     software implementations. For DSA and DH, parameter generation can
B
Bodo Moeller 已提交
4178
     also be overriden by providing the appropriate method callbacks.
4179 4180
     [Geoff Thorpe]

4181 4182 4183 4184 4185 4186 4187 4188 4189 4190
  *) Change the "progress" mechanism used in key-generation and
     primality testing to functions that take a new BN_GENCB pointer in
     place of callback/argument pairs. The new API functions have "_ex"
     postfixes and the older functions are reimplemented as wrappers for
     the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
     declarations of the old functions to help (graceful) attempts to
     migrate to the new functions. Also, the new key-generation API
     functions operate on a caller-supplied key-structure and return
     success/failure rather than returning a key or NULL - this is to
     help make "keygen" another member function of RSA_METHOD etc.
4191 4192 4193 4194 4195 4196 4197 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207

     Example for using the new callback interface:

          int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
          void *my_arg = ...;
          BN_GENCB my_cb;

          BN_GENCB_set(&my_cb, my_callback, my_arg);

          return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
          /* For the meaning of a, b in calls to my_callback(), see the
           * documentation of the function that calls the callback.
           * cb will point to my_cb; my_arg can be retrieved as cb->arg.
           * my_callback should return 1 if it wants BN_is_prime_ex()
           * to continue, or 0 to stop.
           */

4208 4209
     [Geoff Thorpe]

4210 4211 4212 4213 4214
  *) Change the ZLIB compression method to be stateful, and make it
     available to TLS with the number defined in 
     draft-ietf-tls-compression-04.txt.
     [Richard Levitte]

4215 4216 4217 4218
  *) Add the ASN.1 structures and functions for CertificatePair, which
     is defined as follows (according to X.509_4thEditionDraftV6.pdf):

     CertificatePair ::= SEQUENCE {
4219 4220 4221
        forward		[0]	Certificate OPTIONAL,
        reverse		[1]	Certificate OPTIONAL,
        -- at least one of the pair shall be present -- }
4222 4223 4224 4225 4226 4227 4228 4229 4230

     Also implement the PEM functions to read and write certificate
     pairs, and defined the PEM tag as "CERTIFICATE PAIR".

     This needed to be defined, mostly for the sake of the LDAP
     attribute crossCertificatePair, but may prove useful elsewhere as
     well.
     [Richard Levitte]

4231 4232 4233 4234
  *) Make it possible to inhibit symlinking of shared libraries in
     Makefile.shared, for Cygwin's sake.
     [Richard Levitte]

4235 4236 4237 4238
  *) Extend the BIGNUM API by creating a function 
          void BN_set_negative(BIGNUM *a, int neg);
     and a macro that behave like
          int  BN_is_negative(const BIGNUM *a);
4239

4240 4241
     to avoid the need to access 'a->neg' directly in applications.
     [Nils Larsch]
4242

B
Bodo Möller 已提交
4243 4244 4245 4246 4247 4248
  *) Implement fast modular reduction for pseudo-Mersenne primes
     used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
     EC_GROUP_new_curve_GFp() will now automatically use this
     if applicable.
     [Nils Larsch <nla@trustcenter.de>]

B
Bodo Möller 已提交
4249 4250 4251
  *) Add new lock type (CRYPTO_LOCK_BN).
     [Bodo Moeller]

4252 4253 4254 4255 4256 4257 4258 4259 4260
  *) Change the ENGINE framework to automatically load engines
     dynamically from specific directories unless they could be
     found to already be built in or loaded.  Move all the
     current engines except for the cryptodev one to a new
     directory engines/.
     The engines in engines/ are built as shared libraries if
     the "shared" options was given to ./Configure or ./config.
     Otherwise, they are inserted in libcrypto.a.
     /usr/local/ssl/engines is the default directory for dynamic
B
Bodo Moeller 已提交
4261
     engines, but that can be overriden at configure time through
4262 4263
     the usual use of --prefix and/or --openssldir, and at run
     time with the environment variable OPENSSL_ENGINES.
4264 4265
     [Geoff Thorpe and Richard Levitte]

4266
  *) Add Makefile.shared, a helper makefile to build shared
4267
     libraries.  Adapt Makefile.org.
4268 4269
     [Richard Levitte]

D
 
Dr. Stephen Henson 已提交
4270 4271 4272
  *) Add version info to Win32 DLLs.
     [Peter 'Luna' Runestig" <peter@runestig.com>]

D
 
Dr. Stephen Henson 已提交
4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285 4286 4287 4288
  *) Add new 'medium level' PKCS#12 API. Certificates and keys
     can be added using this API to created arbitrary PKCS#12
     files while avoiding the low level API.

     New options to PKCS12_create(), key or cert can be NULL and
     will then be omitted from the output file. The encryption
     algorithm NIDs can be set to -1 for no encryption, the mac
     iteration count can be set to 0 to omit the mac.

     Enhance pkcs12 utility by making the -nokeys and -nocerts
     options work when creating a PKCS#12 file. New option -nomac
     to omit the mac, NONE can be set for an encryption algorithm.
     New code is modified to use the enhanced PKCS12_create()
     instead of the low level API.
     [Steve Henson]

4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299
  *) Extend ASN1 encoder to support indefinite length constructed
     encoding. This can output sequences tags and octet strings in
     this form. Modify pk7_asn1.c to support indefinite length
     encoding. This is experimental and needs additional code to
     be useful, such as an ASN1 bio and some enhanced streaming
     PKCS#7 code.

     Extend template encode functionality so that tagging is passed
     down to the template encoder.
     [Steve Henson]

4300 4301 4302 4303
  *) Let 'openssl req' fail if an argument to '-newkey' is not
     recognized instead of using RSA as a default.
     [Bodo Moeller]

B
Bodo Möller 已提交
4304 4305 4306 4307 4308
  *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
     As these are not official, they are not included in "ALL";
     the "ECCdraft" ciphersuite group alias can be used to select them.
     [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]

B
Bodo Möller 已提交
4309 4310 4311 4312 4313 4314
  *) Add ECDH engine support.
     [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]

  *) Add ECDH in new directory crypto/ecdh/.
     [Douglas Stebila (Sun Microsystems Laboratories)]

4315 4316 4317 4318
  *) Let BN_rand_range() abort with an error after 100 iterations
     without success (which indicates a broken PRNG).
     [Bodo Moeller]

4319 4320 4321 4322 4323
  *) Change BN_mod_sqrt() so that it verifies that the input value
     is really the square of the return value.  (Previously,
     BN_mod_sqrt would show GIGO behaviour.)
     [Bodo Moeller]

4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353
  *) Add named elliptic curves over binary fields from X9.62, SECG,
     and WAP/WTLS; add OIDs that were still missing.

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

  *) Extend the EC library for elliptic curves over binary fields
     (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
     New EC_METHOD:

          EC_GF2m_simple_method

     New API functions:

          EC_GROUP_new_curve_GF2m
          EC_GROUP_set_curve_GF2m
          EC_GROUP_get_curve_GF2m
          EC_POINT_set_affine_coordinates_GF2m
          EC_POINT_get_affine_coordinates_GF2m
          EC_POINT_set_compressed_coordinates_GF2m

     Point compression for binary fields is disabled by default for
     patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
     enable it).

     As binary polynomials are represented as BIGNUMs, various members
     of the EC_GROUP and EC_POINT data structures can be shared
     between the implementations for prime fields and binary fields;
     the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
     are essentially identical to their ..._GFp counterparts.
B
typos  
Bodo Möller 已提交
4354 4355
     (For simplicity, the '..._GFp' prefix has been dropped from
     various internal method names.)
4356 4357 4358 4359 4360 4361 4362

     An internal 'field_div' method (similar to 'field_mul' and
     'field_sqr') has been added; this is used only for binary fields.

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

B
typos  
Bodo Möller 已提交
4363
  *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
4364 4365 4366 4367 4368 4369 4370 4371 4372 4373 4374 4375 4376 4377 4378 4379 4380 4381 4382 4383 4384 4385
     through methods ('mul', 'precompute_mult').

     The generic implementations (now internally called 'ec_wNAF_mul'
     and 'ec_wNAF_precomputed_mult') remain the default if these
     methods are undefined.

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

  *) New function EC_GROUP_get_degree, which is defined through
     EC_METHOD.  For curves over prime fields, this returns the bit
     length of the modulus.

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

  *) New functions EC_GROUP_dup, EC_POINT_dup.
     (These simply call ..._new  and ..._copy).

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

4386 4387 4388 4389 4390 4391 4392 4393 4394 4395 4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406 4407 4408 4409 4410 4411 4412 4413 4414 4415 4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430
  *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
     Polynomials are represented as BIGNUMs (where the sign bit is not
     used) in the following functions [macros]:  

          BN_GF2m_add
          BN_GF2m_sub             [= BN_GF2m_add]
          BN_GF2m_mod             [wrapper for BN_GF2m_mod_arr]
          BN_GF2m_mod_mul         [wrapper for BN_GF2m_mod_mul_arr]
          BN_GF2m_mod_sqr         [wrapper for BN_GF2m_mod_sqr_arr]
          BN_GF2m_mod_inv
          BN_GF2m_mod_exp         [wrapper for BN_GF2m_mod_exp_arr]
          BN_GF2m_mod_sqrt        [wrapper for BN_GF2m_mod_sqrt_arr]
          BN_GF2m_mod_solve_quad  [wrapper for BN_GF2m_mod_solve_quad_arr]
          BN_GF2m_cmp             [= BN_ucmp]

     (Note that only the 'mod' functions are actually for fields GF(2^m).
     BN_GF2m_add() is misnomer, but this is for the sake of consistency.)

     For some functions, an the irreducible polynomial defining a
     field can be given as an 'unsigned int[]' with strictly
     decreasing elements giving the indices of those bits that are set;
     i.e., p[] represents the polynomial
          f(t) = t^p[0] + t^p[1] + ... + t^p[k]
     where
          p[0] > p[1] > ... > p[k] = 0.
     This applies to the following functions:

          BN_GF2m_mod_arr
          BN_GF2m_mod_mul_arr
          BN_GF2m_mod_sqr_arr
          BN_GF2m_mod_inv_arr        [wrapper for BN_GF2m_mod_inv]
          BN_GF2m_mod_div_arr        [wrapper for BN_GF2m_mod_div]
          BN_GF2m_mod_exp_arr
          BN_GF2m_mod_sqrt_arr
          BN_GF2m_mod_solve_quad_arr
          BN_GF2m_poly2arr
          BN_GF2m_arr2poly

     Conversion can be performed by the following functions:

          BN_GF2m_poly2arr
          BN_GF2m_arr2poly

     bntest.c has additional tests for binary polynomial arithmetic.

4431 4432 4433 4434 4435
     Two implementations for BN_GF2m_mod_div() are available.
     The default algorithm simply uses BN_GF2m_mod_inv() and
     BN_GF2m_mod_mul().  The alternative algorithm is compiled in only
     if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
     copyright notice in crypto/bn/bn_gf2m.c before enabling it).
4436 4437 4438 4439

     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

4440 4441 4442 4443
  *) Add new error code 'ERR_R_DISABLED' that can be used when some
     functionality is disabled at compile-time.
     [Douglas Stebila <douglas.stebila@sun.com>]

4444 4445 4446 4447 4448 4449 4450 4451 4452
  *) Change default behaviour of 'openssl asn1parse' so that more
     information is visible when viewing, e.g., a certificate:

     Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
     mode the content of non-printable OCTET STRINGs is output in a
     style similar to INTEGERs, but with '[HEX DUMP]' prepended to
     avoid the appearance of a printable string.
     [Nils Larsch <nla@trustcenter.de>]

B
Bodo Möller 已提交
4453 4454 4455 4456 4457 4458 4459
  *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
     functions
          EC_GROUP_set_asn1_flag()
          EC_GROUP_get_asn1_flag()
          EC_GROUP_set_point_conversion_form()
          EC_GROUP_get_point_conversion_form()
     These control ASN1 encoding details:
B
typo  
Bodo Möller 已提交
4460 4461
     - Curves (i.e., groups) are encoded explicitly unless asn1_flag
       has been set to OPENSSL_EC_NAMED_CURVE.
4462
     - Points are encoded in uncompressed form by default; options for
B
Bodo Möller 已提交
4463 4464 4465 4466
       asn1_for are as for point2oct, namely
          POINT_CONVERSION_COMPRESSED
          POINT_CONVERSION_UNCOMPRESSED
          POINT_CONVERSION_HYBRID
4467 4468 4469 4470 4471 4472 4473

     Also add 'seed' and 'seed_len' members to EC_GROUP with access
     functions
          EC_GROUP_set_seed()
          EC_GROUP_get0_seed()
          EC_GROUP_get_seed_len()
     This is used only for ASN1 purposes (so far).
4474 4475 4476 4477 4478 4479 4480
     [Nils Larsch <nla@trustcenter.de>]

  *) Add 'field_type' member to EC_METHOD, which holds the NID
     of the appropriate field type OID.  The new function
     EC_METHOD_get_field_type() returns this value.
     [Nils Larsch <nla@trustcenter.de>]

4481 4482 4483 4484 4485 4486 4487 4488 4489
  *) Add functions 
          EC_POINT_point2bn()
          EC_POINT_bn2point()
          EC_POINT_point2hex()
          EC_POINT_hex2point()
     providing useful interfaces to EC_POINT_point2oct() and
     EC_POINT_oct2point().
     [Nils Larsch <nla@trustcenter.de>]

4490 4491 4492 4493 4494 4495 4496 4497
  *) Change internals of the EC library so that the functions
          EC_GROUP_set_generator()
          EC_GROUP_get_generator()
          EC_GROUP_get_order()
          EC_GROUP_get_cofactor()
     are implemented directly in crypto/ec/ec_lib.c and not dispatched
     to methods, which would lead to unnecessary code duplication when
     adding different types of curves.
4498
     [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
4499

B
update  
Bodo Möller 已提交
4500 4501 4502 4503 4504
  *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
     arithmetic, and such that modified wNAFs are generated
     (which avoid length expansion in many cases).
     [Bodo Moeller]

4505 4506 4507 4508 4509 4510 4511 4512
  *) Add a function EC_GROUP_check_discriminant() (defined via
     EC_METHOD) that verifies that the curve discriminant is non-zero.

     Add a function EC_GROUP_check() that makes some sanity tests
     on a EC_GROUP, its generator and order.  This includes
     EC_GROUP_check_discriminant().
     [Nils Larsch <nla@trustcenter.de>]

B
Bodo Möller 已提交
4513 4514
  *) Add ECDSA in new directory crypto/ecdsa/.

4515 4516
     Add applications 'openssl ecparam' and 'openssl ecdsa'
     (these are based on 'openssl dsaparam' and 'openssl dsa').
B
Bodo Möller 已提交
4517 4518 4519 4520 4521 4522 4523 4524

     ECDSA support is also included in various other files across the
     library.  Most notably,
     - 'openssl req' now has a '-newkey ecdsa:file' option;
     - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
     - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
       d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
       them suitable for ECDSA where domain parameters must be
B
Bodo Möller 已提交
4525 4526
       extracted before the specific public key;
     - ECDSA engine support has been added.
B
typo  
Bodo Möller 已提交
4527
     [Nils Larsch <nla@trustcenter.de>]
B
Bodo Möller 已提交
4528

B
Bodo Möller 已提交
4529
  *) Include some named elliptic curves, and add OIDs from X9.62,
B
Bodo Möller 已提交
4530
     SECG, and WAP/WTLS.  Each curve can be obtained from the new
4531
     function
4532
          EC_GROUP_new_by_curve_name(),
B
Bodo Möller 已提交
4533 4534
     and the list of available named curves can be obtained with
          EC_get_builtin_curves().
B
Bodo Möller 已提交
4535 4536
     Also add a 'curve_name' member to EC_GROUP objects, which can be
     accessed via
4537 4538
         EC_GROUP_set_curve_name()
         EC_GROUP_get_curve_name()
4539
     [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
B
Bodo Möller 已提交
4540
 
B
Bodo Möller 已提交
4541 4542 4543 4544 4545 4546 4547 4548 4549
  *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
     was actually never needed) and in BN_mul().  The removal in BN_mul()
     required a small change in bn_mul_part_recursive() and the addition
     of the functions bn_cmp_part_words(), bn_sub_part_words() and
     bn_add_part_words(), which do the same thing as bn_cmp_words(),
     bn_sub_words() and bn_add_words() except they take arrays with
     differing sizes.
     [Richard Levitte]

B
Bodo Möller 已提交
4550
 Changes between 0.9.7l and 0.9.7m  [23 Feb 2007]
4551

D
Dr. Stephen Henson 已提交
4552 4553 4554 4555
  *) Cleanse PEM buffers before freeing them since they may contain 
     sensitive data.
     [Benjamin Bennett <ben@psc.edu>]

4556 4557 4558 4559 4560
  *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
     a ciphersuite string such as "DEFAULT:RSA" cannot enable
     authentication-only ciphersuites.
     [Bodo Moeller]

4561 4562 4563 4564 4565
  *) Since AES128 and AES256 share a single mask bit in the logic of
     ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
     kludge to work properly if AES128 is available and AES256 isn't.
     [Victor Duchovni]

B
Bodo Möller 已提交
4566 4567 4568 4569 4570 4571 4572 4573 4574 4575 4576 4577 4578 4579
  *) Expand security boundary to match 1.1.1 module.
     [Steve Henson]

  *) Remove redundant features: hash file source, editing of test vectors
     modify fipsld to use external fips_premain.c signature.
     [Steve Henson]

  *) New perl script mkfipsscr.pl to create shell scripts or batch files to
     run algorithm test programs.
     [Steve Henson]

  *) Make algorithm test programs more tolerant of whitespace.
     [Steve Henson]

4580 4581 4582 4583 4584 4585 4586 4587 4588 4589 4590
  *) Have SSL/TLS server implementation tolerate "mismatched" record
     protocol version while receiving ClientHello even if the
     ClientHello is fragmented.  (The server can't insist on the
     particular protocol version it has chosen before the ServerHello
     message has informed the client about his choice.)
     [Bodo Moeller]

  *) Load error codes if they are not already present instead of using a
     static variable. This allows them to be cleanly unloaded and reloaded.
     [Steve Henson]

4591 4592 4593 4594 4595 4596 4597 4598 4599 4600 4601 4602 4603 4604 4605
 Changes between 0.9.7k and 0.9.7l  [28 Sep 2006]

  *) Introduce limits to prevent malicious keys being able to
     cause a denial of service.  (CVE-2006-2940)
     [Steve Henson, Bodo Moeller]

  *) Fix ASN.1 parsing of certain invalid structures that can result
     in a denial of service.  (CVE-2006-2937)  [Steve Henson]

  *) Fix buffer overflow in SSL_get_shared_ciphers() function. 
     (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]

  *) Fix SSL client code which could crash if connecting to a
     malicious SSLv2 server.  (CVE-2006-4343)
     [Tavis Ormandy and Will Drewry, Google Security Team]
B
Update  
Bodo Möller 已提交
4606 4607 4608 4609 4610 4611 4612 4613 4614 4615

  *) Change ciphersuite string processing so that an explicit
     ciphersuite selects this one ciphersuite (so that "AES256-SHA"
     will no longer include "AES128-SHA"), and any other similar
     ciphersuite (same bitmap) from *other* protocol versions (so that
     "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
     SSL 3.0/TLS 1.0 ciphersuite).  This is a backport combining
     changes from 0.9.8b and 0.9.8d.
     [Bodo Moeller]

4616 4617 4618 4619
 Changes between 0.9.7j and 0.9.7k  [05 Sep 2006]

  *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
     (CVE-2006-4339)  [Ben Laurie and Google Security Team]
B
Bodo Möller 已提交
4620

4621 4622 4623
  *) Change the Unix randomness entropy gathering to use poll() when
     possible instead of select(), since the latter has some
     undesirable limitations.
4624
     [Darryl Miles via Richard Levitte and Bodo Moeller]
4625

B
Bodo Möller 已提交
4626 4627 4628 4629 4630 4631 4632 4633 4634 4635 4636 4637 4638 4639 4640
  *) Disable rogue ciphersuites:

      - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
      - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
      - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")

     The latter two were purportedly from
     draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
     appear there.

     Also deactive the remaining ciphersuites from
     draft-ietf-tls-56-bit-ciphersuites-01.txt.  These are just as
     unofficial, and the ID has long expired.
     [Bodo Moeller]

B
Bodo Moeller 已提交
4641
  *) Fix RSA blinding Heisenbug (problems sometimes occured on
B
Bodo Möller 已提交
4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 4653 4654
     dual-core machines) and other potential thread-safety issues.
     [Bodo Moeller]

 Changes between 0.9.7i and 0.9.7j  [04 May 2006]

  *) Adapt fipsld and the build system to link against the validated FIPS
     module in FIPS mode.
     [Steve Henson]

  *) Fixes for VC++ 2005 build under Windows.
     [Steve Henson]

  *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 
B
Bodo Moeller 已提交
4655
     from a Windows bash shell such as MSYS. It is autodetected from the
B
Bodo Möller 已提交
4656 4657 4658 4659
     "config" script when run from a VC++ environment. Modify standard VC++
     build to use fipscanister.o from the GNU make build. 
     [Steve Henson]

R
Richard Levitte 已提交
4660 4661 4662 4663 4664 4665 4666 4667 4668
 Changes between 0.9.7h and 0.9.7i  [14 Oct 2005]

  *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
     The value now differs depending on if you build for FIPS or not.
     BEWARE!  A program linked with a shared FIPSed libcrypto can't be
     safely run with a non-FIPSed libcrypto, as it may crash because of
     the difference induced by this change.
     [Andy Polyakov]

4669 4670 4671 4672 4673 4674
 Changes between 0.9.7g and 0.9.7h  [11 Oct 2005]

  *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
     (part of SSL_OP_ALL).  This option used to disable the
     countermeasure against man-in-the-middle protocol-version
     rollback in the SSL 2.0 server implementation, which is a bad
M
Mark J. Cox 已提交
4675
     idea.  (CVE-2005-2969)
4676 4677 4678 4679

     [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
     for Information Security, National Institute of Advanced Industrial
     Science and Technology [AIST], Japan)]
4680

D
Dr. Stephen Henson 已提交
4681
  *) Minimal support for X9.31 signatures and PSS padding modes. This is
D
Typo.  
Dr. Stephen Henson 已提交
4682
     mainly for FIPS compliance and not fully integrated at this stage.
D
Dr. Stephen Henson 已提交
4683 4684
     [Steve Henson]

4685 4686 4687 4688 4689 4690 4691
  *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
     the exponentiation using a fixed-length exponent.  (Otherwise,
     the information leaked through timing could expose the secret key
     after many signatures; cf. Bleichenbacher's attack on DSA with
     biased k.)
     [Bodo Moeller]

4692
  *) Make a new fixed-window mod_exp implementation the default for
4693 4694 4695 4696
     RSA, DSA, and DH private-key operations so that the sequence of
     squares and multiplies and the memory access pattern are
     independent of the particular secret key.  This will mitigate
     cache-timing and potential related attacks.
4697 4698 4699

     BN_mod_exp_mont_consttime() is the new exponentiation implementation,
     and this is automatically used by BN_mod_exp_mont() if the new flag
4700
     BN_FLG_EXP_CONSTTIME is set for the exponent.  RSA, DSA, and DH
4701 4702 4703 4704 4705 4706
     will use this BN flag for private exponents unless the flag
     RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
     DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.

     [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]

4707 4708 4709 4710 4711 4712 4713
  *) Change the client implementation for SSLv23_method() and
     SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
     Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
     (Previously, the SSL 2.0 backwards compatible Client Hello
     message format would be used even with SSL_OP_NO_SSLv2.)
     [Bodo Moeller]

4714 4715 4716 4717
  *) Add support for smime-type MIME parameter in S/MIME messages which some
     clients need.
     [Steve Henson]

4718 4719 4720 4721 4722
  *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
     a threadsafe manner. Modify rsa code to use new function and add calls
     to dsa and dh code (which had race conditions before).
     [Steve Henson]

4723 4724 4725 4726 4727 4728
  *) Include the fixed error library code in the C error file definitions
     instead of fixing them up at runtime. This keeps the error code
     structures constant.
     [Steve Henson]

 Changes between 0.9.7f and 0.9.7g  [11 Apr 2005]
U
Ulf Möller 已提交
4729

4730 4731 4732
  [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
  OpenSSL 0.9.8.]

4733 4734 4735 4736 4737 4738 4739 4740
  *) Fixes for newer kerberos headers. NB: the casts are needed because
     the 'length' field is signed on one version and unsigned on another
     with no (?) obvious way to tell the difference, without these VC++
     complains. Also the "definition" of FAR (blank) is no longer included
     nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
     some needed definitions.
     [Steve Henson]

U
Ulf Möller 已提交
4741
  *) Undo Cygwin change.
4742
     [Ulf Möller]
U
Ulf Möller 已提交
4743

4744 4745 4746 4747 4748 4749
  *) Added support for proxy certificates according to RFC 3820.
     Because they may be a security thread to unaware applications,
     they must be explicitely allowed in run-time.  See
     docs/HOWTO/proxy_certificates.txt for further information.
     [Richard Levitte]

4750
 Changes between 0.9.7e and 0.9.7f  [22 Mar 2005]
R
Richard Levitte 已提交
4751

4752 4753 4754 4755 4756 4757 4758 4759 4760 4761 4762 4763 4764 4765 4766 4767 4768 4769 4770 4771 4772 4773
  *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
     server and client random values. Previously
     (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
     less random data when sizeof(time_t) > 4 (some 64 bit platforms).

     This change has negligible security impact because:

     1. Server and client random values still have 24 bytes of pseudo random
        data.

     2. Server and client random values are sent in the clear in the initial
        handshake.

     3. The master secret is derived using the premaster secret (48 bytes in
        size for static RSA ciphersuites) as well as client server and random
        values.

     The OpenSSL team would like to thank the UK NISCC for bringing this issue
     to our attention. 

     [Stephen Henson, reported by UK NISCC]

4774
  *) Use Windows randomness collection on Cygwin.
4775
     [Ulf Möller]
4776

4777 4778
  *) Fix hang in EGD/PRNGD query when communication socket is closed
     prematurely by EGD/PRNGD.
4779
     [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
4780

4781 4782 4783
  *) Prompt for pass phrases when appropriate for PKCS12 input format.
     [Steve Henson]

4784 4785 4786 4787
  *) Back-port of selected performance improvements from development
     branch, as well as improved support for PowerPC platforms.
     [Andy Polyakov]

4788 4789 4790 4791
  *) Add lots of checks for memory allocation failure, error codes to indicate
     failure and freeing up memory if a failure occurs.
     [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]

4792 4793 4794
  *) Add new -passin argument to dgst.
     [Steve Henson]

4795
  *) Perform some character comparisons of different types in X509_NAME_cmp:
B
Bodo Moeller 已提交
4796
     this is needed for some certificates that reencode DNs into UTF8Strings
4797 4798 4799 4800
     (in violation of RFC3280) and can't or wont issue name rollover
     certificates.
     [Steve Henson]

R
Richard Levitte 已提交
4801 4802 4803 4804 4805 4806 4807 4808 4809 4810 4811 4812 4813
  *) Make an explicit check during certificate validation to see that
     the CA setting in each certificate on the chain is correct.  As a
     side effect always do the following basic checks on extensions,
     not just when there's an associated purpose to the check:

      - if there is an unhandled critical extension (unless the user
        has chosen to ignore this fault)
      - if the path length has been exceeded (if one is set at all)
      - that certain extensions fit the associated purpose (if one has
        been given)
     [Richard Levitte]

 Changes between 0.9.7d and 0.9.7e  [25 Oct 2004]
4814

4815 4816 4817 4818 4819 4820 4821
  *) Avoid a race condition when CRLs are checked in a multi threaded 
     environment. This would happen due to the reordering of the revoked
     entries during signature checking and serial number lookup. Now the
     encoding is cached and the serial number sort performed under a lock.
     Add new STACK function sk_is_sorted().
     [Steve Henson]

4822 4823 4824
  *) Add Delta CRL to the extension code.
     [Steve Henson]

4825 4826 4827
  *) Various fixes to s3_pkt.c so alerts are sent properly.
     [David Holmes <d.holmes@f5.com>]

4828 4829 4830 4831 4832 4833 4834 4835 4836 4837 4838 4839
  *) Reduce the chances of duplicate issuer name and serial numbers (in
     violation of RFC3280) using the OpenSSL certificate creation utilities.
     This is done by creating a random 64 bit value for the initial serial
     number when a serial number file is created or when a self signed
     certificate is created using 'openssl req -x509'. The initial serial
     number file is created using 'openssl x509 -next_serial' in CA.pl
     rather than being initialized to 1.
     [Steve Henson]

 Changes between 0.9.7c and 0.9.7d  [17 Mar 2004]

  *) Fix null-pointer assignment in do_change_cipher_spec() revealed           
M
Mark J. Cox 已提交
4840
     by using the Codenomicon TLS Test Tool (CVE-2004-0079)                    
4841 4842 4843
     [Joe Orton, Steve Henson]   

  *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
M
Mark J. Cox 已提交
4844
     (CVE-2004-0112)
4845 4846 4847 4848 4849 4850 4851 4852 4853
     [Joe Orton, Steve Henson]   

  *) Make it possible to have multiple active certificates with the same
     subject in the CA index file.  This is done only if the keyword
     'unique_subject' is set to 'no' in the main CA section (default
     if 'CA_default') of the configuration file.  The value is saved
     with the database itself in a separate index attribute file,
     named like the index file with '.attr' appended to the name.
     [Richard Levitte]
4854

4855 4856 4857 4858 4859 4860 4861 4862
  *) X509 verify fixes. Disable broken certificate workarounds when 
     X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
     keyUsage extension present. Don't accept CRLs with unhandled critical
     extensions: since verify currently doesn't process CRL extensions this
     rejects a CRL with *any* critical extensions. Add new verify error codes
     for these cases.
     [Steve Henson]

4863 4864 4865 4866 4867 4868 4869
  *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
     A clarification of RFC2560 will require the use of OCTET STRINGs and 
     some implementations cannot handle the current raw format. Since OpenSSL
     copies and compares OCSP nonces as opaque blobs without any attempt at
     parsing them this should not create any compatibility issues.
     [Steve Henson]

4870 4871 4872 4873 4874 4875
  *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
     calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
     this HMAC (and other) operations are several times slower than OpenSSL
     < 0.9.7.
     [Steve Henson]

4876 4877 4878
  *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
     [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]

4879 4880 4881
  *) Use the correct content when signing type "other".
     [Steve Henson]

4882 4883 4884 4885 4886
 Changes between 0.9.7b and 0.9.7c  [30 Sep 2003]

  *) Fix various bugs revealed by running the NISCC test suite:

     Stop out of bounds reads in the ASN1 code when presented with
M
Mark J. Cox 已提交
4887
     invalid tags (CVE-2003-0543 and CVE-2003-0544).
4888
     
M
Mark J. Cox 已提交
4889
     Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4890 4891 4892 4893 4894

     If verify callback ignores invalid public key errors don't try to check
     certificate signature with the NULL public key.

     [Steve Henson]
4895

4896 4897 4898 4899
  *) New -ignore_err option in ocsp application to stop the server
     exiting on the first error in a request.
     [Steve Henson]

4900 4901 4902 4903 4904
  *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
     if the server requested one: as stated in TLS 1.0 and SSL 3.0
     specifications.
     [Steve Henson]

4905 4906 4907 4908 4909 4910 4911 4912 4913
  *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
     extra data after the compression methods not only for TLS 1.0
     but also for SSL 3.0 (as required by the specification).
     [Bodo Moeller; problem pointed out by Matthias Loepfe]

  *) Change X509_certificate_type() to mark the key as exported/exportable
     when it's 512 *bits* long, not 512 bytes.
     [Richard Levitte]

4914 4915 4916 4917
  *) Change AES_cbc_encrypt() so it outputs exact multiple of
     blocks during encryption.
     [Richard Levitte]

4918 4919 4920 4921 4922 4923 4924
  *) Various fixes to base64 BIO and non blocking I/O. On write 
     flushes were not handled properly if the BIO retried. On read
     data was not being buffered properly and had various logic bugs.
     This also affects blocking I/O when the data being decoded is a
     certain size.
     [Steve Henson]

4925 4926 4927 4928 4929 4930 4931 4932 4933
  *) Various S/MIME bugfixes and compatibility changes:
     output correct application/pkcs7 MIME type if
     PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
     Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
     of files as .eml work). Correctly handle very long lines in MIME
     parser.
     [Steve Henson]

 Changes between 0.9.7a and 0.9.7b  [10 Apr 2003]
4934

4935 4936 4937 4938 4939 4940
  *) Countermeasure against the Klima-Pokorny-Rosa extension of
     Bleichbacher's attack on PKCS #1 v1.5 padding: treat
     a protocol version number mismatch like a decryption error
     in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
     [Bodo Moeller]

4941 4942 4943 4944
  *) Turn on RSA blinding by default in the default implementation
     to avoid a timing attack. Applications that don't want it can call
     RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
     They would be ill-advised to do so in most cases.
B
Bodo Möller 已提交
4945
     [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4946 4947 4948 4949

  *) Change RSA blinding code so that it works when the PRNG is not
     seeded (in this case, the secret RSA exponent is abused as
     an unpredictable seed -- if it is not unpredictable, there
B
Bodo Möller 已提交
4950 4951 4952 4953 4954 4955
     is no point in blinding anyway).  Make RSA blinding thread-safe
     by remembering the creator's thread ID in rsa->blinding and
     having all other threads use local one-time blinding factors
     (this requires more computation than sharing rsa->blinding, but
     avoids excessive locking; and if an RSA object is not shared
     between threads, blinding will still be very fast).
4956 4957
     [Bodo Moeller]

4958 4959 4960 4961 4962 4963
  *) Fixed a typo bug that would cause ENGINE_set_default() to set an
     ENGINE as defaults for all supported algorithms irrespective of
     the 'flags' parameter. 'flags' is now honoured, so applications
     should make sure they are passing it correctly.
     [Geoff Thorpe]

4964 4965 4966
  *) Target "mingw" now allows native Windows code to be generated in
     the Cygwin environment as well as with the MinGW compiler.
     [Ulf Moeller] 
4967

4968 4969 4970
 Changes between 0.9.7 and 0.9.7a  [19 Feb 2003]

  *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4971
     via timing by performing a MAC computation even if incorrect
4972 4973
     block cipher padding has been found.  This is a countermeasure
     against active attacks where the attacker has to distinguish
M
Mark J. Cox 已提交
4974
     between bad padding and a MAC verification error. (CVE-2003-0078)
4975 4976 4977 4978

     [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
     Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
     Martin Vuagnoux (EPFL, Ilion)]
4979

4980 4981 4982 4983 4984 4985 4986 4987 4988 4989 4990
  *) Make the no-err option work as intended.  The intention with no-err
     is not to have the whole error stack handling routines removed from
     libcrypto, it's only intended to remove all the function name and
     reason texts, thereby removing some of the footprint that may not
     be interesting if those errors aren't displayed anyway.

     NOTE: it's still possible for any application or module to have it's
     own set of error texts inserted.  The routines are there, just not
     used by default when no-err is given.
     [Richard Levitte]

R
Richard Levitte 已提交
4991 4992 4993
  *) Add support for FreeBSD on IA64.
     [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]

4994 4995 4996 4997 4998 4999
  *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
     Kerberos function mit_des_cbc_cksum().  Before this change,
     the value returned by DES_cbc_cksum() was like the one from
     mit_des_cbc_cksum(), except the bytes were swapped.
     [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]

5000 5001 5002 5003 5004 5005 5006 5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 5017
  *) Allow an application to disable the automatic SSL chain building.
     Before this a rather primitive chain build was always performed in
     ssl3_output_cert_chain(): an application had no way to send the 
     correct chain if the automatic operation produced an incorrect result.

     Now the chain builder is disabled if either:

     1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().

     2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.

     The reasoning behind this is that an application would not want the
     auto chain building to take place if extra chain certificates are
     present and it might also want a means of sending no additional
     certificates (for example the chain has two certificates and the
     root is omitted).
     [Steve Henson]

5018 5019 5020
  *) Add the possibility to build without the ENGINE framework.
     [Steven Reddie <smr@essemer.com.au> via Richard Levitte]

5021 5022 5023 5024
  *) Under Win32 gmtime() can return NULL: check return value in
     OPENSSL_gmtime(). Add error code for case where gmtime() fails.
     [Steve Henson]

5025 5026 5027 5028 5029 5030
  *) DSA routines: under certain error conditions uninitialized BN objects
     could be freed. Solution: make sure initialization is performed early
     enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
     Nils Larsch <nla@trustcenter.de> via PR#459)
     [Lutz Jaenicke]

5031 5032 5033 5034 5035 5036 5037 5038 5039
  *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
     checked on reconnect on the client side, therefore session resumption
     could still fail with a "ssl session id is different" error. This
     behaviour is masked when SSL_OP_ALL is used due to
     SSL_OP_MICROSOFT_SESS_ID_BUG being set.
     Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
     followup to PR #377.
     [Lutz Jaenicke]

R
Richard Levitte 已提交
5040 5041 5042 5043
  *) IA-32 assembler support enhancements: unified ELF targets, support
     for SCO/Caldera platforms, fix for Cygwin shared build.
     [Andy Polyakov]

5044 5045 5046 5047
  *) Add support for FreeBSD on sparc64.  As a consequence, support for
     FreeBSD on non-x86 processors is separate from x86 processors on
     the config script, much like the NetBSD support.
     [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
5048

5049
 Changes between 0.9.6h and 0.9.7  [31 Dec 2002]
5050

5051 5052 5053
  [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
  OpenSSL 0.9.7.]

5054 5055 5056 5057 5058 5059 5060 5061 5062
  *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
     code (06) was taken as the first octet of the session ID and the last
     octet was ignored consequently. As a result SSLv2 client side session
     caching could not have worked due to the session ID mismatch between
     client and server.
     Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
     PR #377.
     [Lutz Jaenicke]

5063 5064 5065 5066 5067
  *) Change the declaration of needed Kerberos libraries to use EX_LIBS
     instead of the special (and badly supported) LIBKRB5.  LIBKRB5 is
     removed entirely.
     [Richard Levitte]

5068
  *) The hw_ncipher.c engine requires dynamic locks.  Unfortunately, it
5069 5070
     seems that in spite of existing for more than a year, many application
     author have done nothing to provide the necessary callbacks, which
5071 5072 5073 5074 5075 5076 5077 5078 5079 5080 5081
     means that this particular engine will not work properly anywhere.
     This is a very unfortunate situation which forces us, in the name
     of usability, to give the hw_ncipher.c a static lock, which is part
     of libcrypto.
     NOTE: This is for the 0.9.7 series ONLY.  This hack will never
     appear in 0.9.8 or later.  We EXPECT application authors to have
     dealt properly with this when 0.9.8 is released (unless we actually
     make such changes in the libcrypto locking code that changes will
     have to be made anyway).
     [Richard Levitte]

5082 5083 5084 5085 5086
  *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
     octets have been read, EOF or an error occurs. Without this change
     some truncated ASN1 structures will not produce an error.
     [Steve Henson]

5087 5088 5089 5090 5091
  *) Disable Heimdal support, since it hasn't been fully implemented.
     Still give the possibility to force the use of Heimdal, but with
     warnings and a request that patches get sent to openssl-dev.
     [Richard Levitte]

R
Richard Levitte 已提交
5092 5093 5094 5095
  *) Add the VC-CE target, introduce the WINCE sysname, and add
     INSTALL.WCE and appropriate conditionals to make it build.
     [Steven Reddie <smr@essemer.com.au> via Richard Levitte]

5096 5097 5098 5099 5100
  *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
     cygssl-x.y.z.dll, where x, y and z are the major, minor and
     edit numbers of the version.
     [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]

5101 5102 5103 5104 5105 5106 5107 5108 5109 5110 5111 5112 5113 5114 5115 5116 5117 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128 5129 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145 5146 5147 5148 5149 5150 5151 5152 5153 5154
  *) Introduce safe string copy and catenation functions
     (BUF_strlcpy() and BUF_strlcat()).
     [Ben Laurie (CHATS) and Richard Levitte]

  *) Avoid using fixed-size buffers for one-line DNs.
     [Ben Laurie (CHATS)]

  *) Add BUF_MEM_grow_clean() to avoid information leakage when
     resizing buffers containing secrets, and use where appropriate.
     [Ben Laurie (CHATS)]

  *) Avoid using fixed size buffers for configuration file location.
     [Ben Laurie (CHATS)]

  *) Avoid filename truncation for various CA files.
     [Ben Laurie (CHATS)]

  *) Use sizeof in preference to magic numbers.
     [Ben Laurie (CHATS)]

  *) Avoid filename truncation in cert requests.
     [Ben Laurie (CHATS)]

  *) Add assertions to check for (supposedly impossible) buffer
     overflows.
     [Ben Laurie (CHATS)]

  *) Don't cache truncated DNS entries in the local cache (this could
     potentially lead to a spoofing attack).
     [Ben Laurie (CHATS)]

  *) Fix various buffers to be large enough for hex/decimal
     representations in a platform independent manner.
     [Ben Laurie (CHATS)]

  *) Add CRYPTO_realloc_clean() to avoid information leakage when
     resizing buffers containing secrets, and use where appropriate.
     [Ben Laurie (CHATS)]

  *) Add BIO_indent() to avoid much slightly worrying code to do
     indents.
     [Ben Laurie (CHATS)]

  *) Convert sprintf()/BIO_puts() to BIO_printf().
     [Ben Laurie (CHATS)]

  *) buffer_gets() could terminate with the buffer only half
     full. Fixed.
     [Ben Laurie (CHATS)]

  *) Add assertions to prevent user-supplied crypto functions from
     overflowing internal buffers by having large block sizes, etc.
     [Ben Laurie (CHATS)]

B
Bodo Möller 已提交
5155 5156 5157 5158
  *) New OPENSSL_assert() macro (similar to assert(), but enabled
     unconditionally).
     [Ben Laurie (CHATS)]

5159 5160 5161 5162 5163 5164 5165 5166 5167 5168 5169 5170 5171 5172 5173 5174 5175 5176 5177 5178 5179 5180 5181 5182 5183 5184 5185
  *) Eliminate unused copy of key in RC4.
     [Ben Laurie (CHATS)]

  *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
     [Ben Laurie (CHATS)]

  *) Fix off-by-one error in EGD path.
     [Ben Laurie (CHATS)]

  *) If RANDFILE path is too long, ignore instead of truncating.
     [Ben Laurie (CHATS)]

  *) Eliminate unused and incorrectly sized X.509 structure
     CBCParameter.
     [Ben Laurie (CHATS)]

  *) Eliminate unused and dangerous function knumber().
     [Ben Laurie (CHATS)]

  *) Eliminate unused and dangerous structure, KSSL_ERR.
     [Ben Laurie (CHATS)]

  *) Protect against overlong session ID context length in an encoded
     session object. Since these are local, this does not appear to be
     exploitable.
     [Ben Laurie (CHATS)]

5186 5187 5188 5189 5190
  *) Change from security patch (see 0.9.6e below) that did not affect
     the 0.9.6 release series:

     Remote buffer overflow in SSL3 protocol - an attacker could
     supply an oversized master key in Kerberos-enabled versions.
M
Mark J. Cox 已提交
5191
     (CVE-2002-0657)
5192
     [Ben Laurie (CHATS)]
D
 
Dr. Stephen Henson 已提交
5193

5194 5195 5196
  *) Change the SSL kerb5 codes to match RFC 2712.
     [Richard Levitte]

5197 5198 5199
  *) Make -nameopt work fully for req and add -reqopt switch.
     [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]

5200 5201 5202
  *) The "block size" for block ciphers in CFB and OFB mode should be 1.
     [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]

5203 5204 5205 5206 5207
  *) Make sure tests can be performed even if the corresponding algorithms
     have been removed entirely.  This was also the last step to make
     OpenSSL compilable with DJGPP under all reasonable conditions.
     [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]

B
Bodo Möller 已提交
5208
  *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
5209 5210
     to allow version independent disabling of normally unselected ciphers,
     which may be activated as a side-effect of selecting a single cipher.
B
Bodo Möller 已提交
5211 5212 5213 5214

     (E.g., cipher list string "RSA" enables ciphersuites that are left
     out of "ALL" because they do not provide symmetric encryption.
     "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
5215 5216
     [Lutz Jaenicke, Bodo Moeller]

5217 5218 5219 5220 5221 5222 5223 5224
  *) Add appropriate support for separate platform-dependent build
     directories.  The recommended way to make a platform-dependent
     build directory is the following (tested on Linux), maybe with
     some local tweaks:

	# Place yourself outside of the OpenSSL source tree.  In
	# this example, the environment variable OPENSSL_SOURCE
	# is assumed to contain the absolute OpenSSL source directory.
5225 5226
	mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
	cd objtree/"`uname -s`-`uname -r`-`uname -m`"
5227
	(cd $OPENSSL_SOURCE; find . -type f) | while read F; do
5228 5229 5230 5231 5232
		mkdir -p `dirname $F`
		ln -s $OPENSSL_SOURCE/$F $F
	done

     To be absolutely sure not to disturb the source tree, a "make clean"
G
Github User 已提交
5233
     is a good thing.  If it isn't successful, don't worry about it,
5234 5235 5236
     it probably means the source directory is very clean.
     [Richard Levitte]

5237 5238 5239 5240
  *) Make sure any ENGINE control commands make local copies of string
     pointers passed to them whenever necessary. Otherwise it is possible
     the caller may have overwritten (or deallocated) the original string
     data when a later ENGINE operation tries to use the stored values.
5241
     [Götz Babin-Ebell <babinebell@trustcenter.de>]
5242

B
Ben Laurie 已提交
5243 5244 5245
  *) Improve diagnostics in file reading and command-line digests.
     [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]

R
Richard Levitte 已提交
5246 5247 5248 5249
  *) Add AES modes CFB and OFB to the object database.  Correct an
     error in AES-CFB decryption.
     [Richard Levitte]

D
 
Dr. Stephen Henson 已提交
5250 5251 5252 5253 5254 5255 5256 5257
  *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 
     allows existing EVP_CIPHER_CTX structures to be reused after
     calling EVP_*Final(). This behaviour is used by encryption
     BIOs and some applications. This has the side effect that
     applications must explicitly clean up cipher contexts with
     EVP_CIPHER_CTX_cleanup() or they will leak memory.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
5258 5259 5260 5261
  *) Check the values of dna and dnb in bn_mul_recursive before calling
     bn_mul_comba (a non zero value means the a or b arrays do not contain
     n2 elements) and fallback to bn_mul_normal if either is not zero.
     [Steve Henson]
B
Bodo Möller 已提交
5262

5263 5264 5265 5266
  *) Fix escaping of non-ASCII characters when using the -subj option
     of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
     [Lutz Jaenicke]

5267
  *) Make object definitions compliant to LDAP (RFC2256): SN is the short
L
Lutz Jänicke 已提交
5268 5269 5270
     form for "surname", serialNumber has no short form.
     Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
     therefore remove "mail" short name for "internet 7".
5271 5272
     The OID for unique identifiers in X509 certificates is
     x500UniqueIdentifier, not uniqueIdentifier.
L
Lutz Jänicke 已提交
5273
     Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
B
Bodo Möller 已提交
5274
     [Lutz Jaenicke]
5275

5276
  *) Add an "init" command to the ENGINE config module and auto initialize
D
 
Dr. Stephen Henson 已提交
5277 5278 5279 5280 5281 5282 5283
     ENGINEs. Without any "init" command the ENGINE will be initialized 
     after all ctrl commands have been executed on it. If init=1 the 
     ENGINE is initailized at that point (ctrls before that point are run
     on the uninitialized ENGINE and after on the initialized one). If
     init=0 then the ENGINE will not be iniatialized at all.
     [Steve Henson]

5284
  *) Fix the 'app_verify_callback' interface so that the user-defined
5285 5286 5287 5288 5289 5290 5291 5292 5293 5294 5295 5296 5297 5298 5299
     argument is actually passed to the callback: In the
     SSL_CTX_set_cert_verify_callback() prototype, the callback
     declaration has been changed from
          int (*cb)()
     into
          int (*cb)(X509_STORE_CTX *,void *);
     in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
          i=s->ctx->app_verify_callback(&ctx)
     has been changed into
          i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).

     To update applications using SSL_CTX_set_cert_verify_callback(),
     a dummy argument can be added to their callback functions.
     [D. K. Smetters <smetters@parc.xerox.com>]

5300
  *) Added the '4758cca' ENGINE to support IBM 4758 cards.
5301 5302
     [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]

5303
  *) Add and OPENSSL_LOAD_CONF define which will cause
5304 5305 5306 5307 5308 5309 5310 5311
     OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
     This allows older applications to transparently support certain
     OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
     Two new functions OPENSSL_add_all_algorithms_noconf() which will never
     load the config file and OPENSSL_add_all_algorithms_conf() which will
     always load it have also been added.
     [Steve Henson]

5312
  *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
5313 5314 5315
     Adjust NIDs and EVP layer.
     [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]

5316
  *) Config modules support in openssl utility.
D
Dr. Stephen Henson 已提交
5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327

     Most commands now load modules from the config file,
     though in a few (such as version) this isn't done 
     because it couldn't be used for anything.

     In the case of ca and req the config file used is
     the same as the utility itself: that is the -config
     command line option can be used to specify an
     alternative file.
     [Steve Henson]

5328
  *) Move default behaviour from OPENSSL_config(). If appname is NULL
B
Bodo Moeller 已提交
5329
     use "openssl_conf" if filename is NULL use default openssl config file.
5330 5331
     [Steve Henson]

5332
  *) Add an argument to OPENSSL_config() to allow the use of an alternative
5333 5334 5335 5336
     config section name. Add a new flag to tolerate a missing config file
     and move code to CONF_modules_load_file().
     [Steve Henson]

5337
  *) Support for crypto accelerator cards from Accelerated Encryption
5338 5339 5340 5341 5342
     Processing, www.aep.ie.  (Use engine 'aep')
     The support was copied from 0.9.6c [engine] and adapted/corrected
     to work with the new engine framework.
     [AEP Inc. and Richard Levitte]

5343
  *) Support for SureWare crypto accelerator cards from Baltimore
5344 5345 5346 5347 5348
     Technologies.  (Use engine 'sureware')
     The support was copied from 0.9.6c [engine] and adapted
     to work with the new engine framework.
     [Richard Levitte]

5349
  *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
5350 5351 5352
     make the newer ENGINE framework commands for the CHIL engine work.
     [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]

5353
  *) Make it possible to produce shared libraries on ReliantUNIX.
5354 5355
     [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]

5356
  *) Add the configuration target debug-linux-ppro.
5357 5358 5359 5360 5361 5362
     Make 'openssl rsa' use the general key loading routines
     implemented in apps.c, and make those routines able to
     handle the key format FORMAT_NETSCAPE and the variant
     FORMAT_IISSGC.
     [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]

5363
 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5364 5365
     [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]

5366
  *) Add -keyform to rsautl, and document -engine.
R
Richard Levitte 已提交
5367 5368
     [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]

5369
  *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
B
Bodo Möller 已提交
5370 5371 5372 5373
     BIO_R_NO_SUCH_FILE error code rather than the generic
     ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
     [Ben Laurie]

5374
  *) Add new functions
B
Bodo Möller 已提交
5375 5376 5377 5378 5379 5380 5381 5382 5383 5384 5385
          ERR_peek_last_error
          ERR_peek_last_error_line
          ERR_peek_last_error_line_data.
     These are similar to
          ERR_peek_error
          ERR_peek_error_line
          ERR_peek_error_line_data,
     but report on the latest error recorded rather than the first one
     still in the error queue.
     [Ben Laurie, Bodo Moeller]
        
5386
  *) default_algorithms option in ENGINE config module. This allows things
D
 
Dr. Stephen Henson 已提交
5387 5388 5389 5390 5391
     like:
     default_algorithms = ALL
     default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
     [Steve Henson]

5392
  *) Preliminary ENGINE config module.
D
 
Dr. Stephen Henson 已提交
5393 5394
     [Steve Henson]

5395
  *) New experimental application configuration code.
D
 
Dr. Stephen Henson 已提交
5396 5397
     [Steve Henson]

5398
  *) Change the AES code to follow the same name structure as all other
5399 5400 5401 5402
     symmetric ciphers, and behave the same way.  Move everything to
     the directory crypto/aes, thereby obsoleting crypto/rijndael.
     [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]

5403
  *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
B
Ben Laurie 已提交
5404 5405
     [Ben Laurie and Theo de Raadt]

5406
  *) Add option to output public keys in req command.
5407 5408
     [Massimiliano Pala madwolf@openca.org]

5409
  *) Use wNAFs in EC_POINTs_mul() for improved efficiency
5410
     (up to about 10% better than before for P-192 and P-224).
B
Bodo Möller 已提交
5411 5412
     [Bodo Moeller]

5413
  *) New functions/macros
5414 5415 5416 5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429 5430 5431 5432 5433 5434 5435 5436 5437 5438 5439

          SSL_CTX_set_msg_callback(ctx, cb)
          SSL_CTX_set_msg_callback_arg(ctx, arg)
          SSL_set_msg_callback(ssl, cb)
          SSL_set_msg_callback_arg(ssl, arg)

     to request calling a callback function

          void cb(int write_p, int version, int content_type,
                  const void *buf, size_t len, SSL *ssl, void *arg)

     whenever a protocol message has been completely received
     (write_p == 0) or sent (write_p == 1).  Here 'version' is the
     protocol version  according to which the SSL library interprets
     the current protocol message (SSL2_VERSION, SSL3_VERSION, or
     TLS1_VERSION).  'content_type' is 0 in the case of SSL 2.0, or
     the content type as defined in the SSL 3.0/TLS 1.0 protocol
     specification (change_cipher_spec(20), alert(21), handshake(22)).
     'buf' and 'len' point to the actual message, 'ssl' to the
     SSL object, and 'arg' is the application-defined value set by
     SSL[_CTX]_set_msg_callback_arg().

     'openssl s_client' and 'openssl s_server' have new '-msg' options
     to enable a callback that displays all protocol messages.
     [Bodo Moeller]

5440
  *) Change the shared library support so shared libraries are built as
5441 5442 5443 5444 5445 5446 5447 5448 5449
     soon as the corresponding static library is finished, and thereby get
     openssl and the test programs linked against the shared library.
     This still only happens when the keyword "shard" has been given to
     the configuration scripts.

     NOTE: shared library support is still an experimental thing, and
     backward binary compatibility is still not guaranteed.
     ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]

5450
  *) Add support for Subject Information Access extension.
5451 5452
     [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]

5453
  *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
5454 5455 5456 5457
     additional bytes when new memory had to be allocated, not just
     when reusing an existing buffer.
     [Bodo Moeller]

5458
  *) New command line and configuration option 'utf8' for the req command.
5459 5460 5461
     This allows field values to be specified as UTF8 strings.
     [Steve Henson]

5462
  *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
5463 5464 5465
     runs for the former and machine-readable output for the latter.
     [Ben Laurie]

5466
  *) Add '-noemailDN' option to 'openssl ca'.  This prevents inclusion
5467 5468 5469 5470 5471
     of the e-mail address in the DN (i.e., it will go into a certificate
     extension only).  The new configuration file option 'email_in_dn = no'
     has the same effect.
     [Massimiliano Pala madwolf@openca.org]

5472
  *) Change all functions with names starting with des_ to be starting
5473
     with DES_ instead.  Add wrappers that are compatible with libdes,
5474
     but are named _ossl_old_des_*.  Finally, add macros that map the
5475 5476 5477 5478
     des_* symbols to the corresponding _ossl_old_des_* if libdes
     compatibility is desired.  If OpenSSL 0.9.6c compatibility is
     desired, the des_* symbols will be mapped to DES_*, with one
     exception.
5479

5480 5481 5482 5483 5484 5485 5486 5487 5488 5489 5490 5491 5492
     Since we provide two compatibility mappings, the user needs to
     define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
     compatibility is desired.  The default (i.e., when that macro
     isn't defined) is OpenSSL 0.9.6c compatibility.

     There are also macros that enable and disable the support of old
     des functions altogether.  Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
     and OPENSSL_DISABLE_OLD_DES_SUPPORT.  If none or both of those
     are defined, the default will apply: to support the old des routines.

     In either case, one must include openssl/des.h to get the correct
     definitions.  Do not try to just include openssl/des_old.h, that
     won't work.
5493 5494 5495 5496

     NOTE: This is a major break of an old API into a new one.  Software
     authors are encouraged to switch to the DES_ style functions.  Some
     time in the future, des_old.h and the libdes compatibility functions
5497 5498
     will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
     default), and then completely removed.
5499 5500
     [Richard Levitte]

5501
  *) Test for certificates which contain unsupported critical extensions.
D
 
Dr. Stephen Henson 已提交
5502 5503 5504 5505 5506 5507 5508 5509
     If such a certificate is found during a verify operation it is 
     rejected by default: this behaviour can be overridden by either
     handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
     by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
     X509_supported_extension() has also been added which returns 1 if a
     particular extension is supported.
     [Steve Henson]

5510
  *) Modify the behaviour of EVP cipher functions in similar way to digests
5511 5512 5513
     to retain compatibility with existing code.
     [Steve Henson]

5514
  *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
D
Dr. Stephen Henson 已提交
5515 5516 5517 5518 5519 5520 5521 5522 5523 5524
     compatibility with existing code. In particular the 'ctx' parameter does
     not have to be to be initialized before the call to EVP_DigestInit() and
     it is tidied up after a call to EVP_DigestFinal(). New function
     EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
     EVP_MD_CTX_copy() changed to not require the destination to be
     initialized valid and new function EVP_MD_CTX_copy_ex() added which
     requires the destination to be valid.

     Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
     EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
D
 
Dr. Stephen Henson 已提交
5525 5526
     [Steve Henson]

5527
  *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
5528 5529 5530 5531
     so that complete 'Handshake' protocol structures are kept in memory
     instead of overwriting 'msg_type' and 'length' with 'body' data.
     [Bodo Moeller]

5532
  *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
5533 5534
     [Massimo Santin via Richard Levitte]

5535
  *) Major restructuring to the underlying ENGINE code. This includes
5536 5537
     reduction of linker bloat, separation of pure "ENGINE" manipulation
     (initialisation, etc) from functionality dealing with implementations
B
Bodo Moeller 已提交
5538
     of specific crypto iterfaces. This change also introduces integrated
5539 5540 5541 5542 5543 5544 5545 5546 5547 5548 5549 5550 5551 5552 5553 5554 5555 5556
     support for symmetric ciphers and digest implementations - so ENGINEs
     can now accelerate these by providing EVP_CIPHER and EVP_MD
     implementations of their own. This is detailed in crypto/engine/README
     as it couldn't be adequately described here. However, there are a few
     API changes worth noting - some RSA, DSA, DH, and RAND functions that
     were changed in the original introduction of ENGINE code have now
     reverted back - the hooking from this code to ENGINE is now a good
     deal more passive and at run-time, operations deal directly with
     RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
     dereferencing through an ENGINE pointer any more. Also, the ENGINE
     functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
     they were not being used by the framework as there is no concept of a
     BIGNUM_METHOD and they could not be generalised to the new
     'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
     ENGINE_cpy() has been removed as it cannot be consistently defined in
     the new code.
     [Geoff Thorpe]

5557
  *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
5558 5559
     [Steve Henson]

5560
  *) Change mkdef.pl to sort symbols that get the same entry number,
R
Richard Levitte 已提交
5561 5562 5563 5564
     and make sure the automatically generated functions ERR_load_*
     become part of libeay.num as well.
     [Richard Levitte]

5565
  *) New function SSL_renegotiate_pending().  This returns true once
5566
     renegotiation has been requested (either SSL_renegotiate() call
5567
     or HelloRequest/ClientHello received from the peer) and becomes
5568 5569 5570 5571 5572 5573 5574
     false once a handshake has been completed.
     (For servers, SSL_renegotiate() followed by SSL_do_handshake()
     sends a HelloRequest, but does not ensure that a handshake takes
     place.  SSL_renegotiate_pending() is useful for checking if the
     client has followed the request.)
     [Bodo Moeller]

5575
  *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
5576 5577 5578
     By default, clients may request session resumption even during
     renegotiation (if session ID contexts permit); with this option,
     session resumption is possible only in the first handshake.
5579 5580 5581 5582

     SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL.  This makes
     more bits available for options that should not be part of
     SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
5583 5584
     [Bodo Moeller]

5585
  *) Add some demos for certificate and certificate request creation.
5586 5587
     [Steve Henson]

5588
  *) Make maximum certificate chain size accepted from the peer application
5589 5590 5591 5592
     settable (SSL*_get/set_max_cert_list()), as proposed by
     "Douglas E. Engert" <deengert@anl.gov>.
     [Lutz Jaenicke]

5593
  *) Add support for shared libraries for Unixware-7
5594
     (Boyd Lynn Gerber <gerberb@zenez.com>).
5595 5596
     [Lutz Jaenicke]

5597
  *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
5598 5599 5600
     be done prior to destruction. Use this to unload error strings from
     ENGINEs that load their own error strings. NB: This adds two new API
     functions to "get" and "set" this destroy handler in an ENGINE.
B
Bodo Möller 已提交
5601
     [Geoff Thorpe]
5602

5603
  *) Alter all existing ENGINE implementations (except "openssl" and
G
Geoff Thorpe 已提交
5604 5605 5606 5607 5608 5609 5610
     "openbsd") to dynamically instantiate their own error strings. This
     makes them more flexible to be built both as statically-linked ENGINEs
     and self-contained shared-libraries loadable via the "dynamic" ENGINE.
     Also, add stub code to each that makes building them as self-contained
     shared-libraries easier (see README.ENGINE).
     [Geoff Thorpe]

5611
  *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
G
Geoff Thorpe 已提交
5612 5613 5614 5615 5616 5617 5618 5619 5620
     implementations into applications that are completely implemented in
     self-contained shared-libraries. The "dynamic" ENGINE exposes control
     commands that can be used to configure what shared-library to load and
     to control aspects of the way it is handled. Also, made an update to
     the README.ENGINE file that brings its information up-to-date and
     provides some information and instructions on the "dynamic" ENGINE
     (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
     [Geoff Thorpe]

5621
  *) Make it possible to unload ranges of ERR strings with a new
5622 5623 5624
     "ERR_unload_strings" function.
     [Geoff Thorpe]

5625
  *) Add a copy() function to EVP_MD.
5626 5627
     [Ben Laurie]

5628
  *) Make EVP_MD routines take a context pointer instead of just the
U
ispell  
Ulf Möller 已提交
5629
     md_data void pointer.
5630 5631
     [Ben Laurie]

5632
  *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
5633 5634 5635 5636 5637 5638 5639
     that the digest can only process a single chunk of data
     (typically because it is provided by a piece of
     hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
     is only going to provide a single chunk of data, and hence the
     framework needn't accumulate the data for oneshot drivers.
     [Ben Laurie]

5640
  *) As with "ERR", make it possible to replace the underlying "ex_data"
G
Geoff Thorpe 已提交
5641 5642 5643 5644 5645 5646 5647 5648 5649 5650 5651 5652 5653 5654
     functions. This change also alters the storage and management of global
     ex_data state - it's now all inside ex_data.c and all "class" code (eg.
     RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
     index counters. The API functions that use this state have been changed
     to take a "class_index" rather than pointers to the class's local STACK
     and counter, and there is now an API function to dynamically create new
     classes. This centralisation allows us to (a) plug a lot of the
     thread-safety problems that existed, and (b) makes it possible to clean
     up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
     such data would previously have always leaked in application code and
     workarounds were in place to make the memory debugging turn a blind eye
     to it. Application code that doesn't use this new function will still
     leak as before, but their memory debugging output will announce it now
     rather than letting it slide.
5655 5656 5657 5658

     Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
     induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
     has a return value to indicate success or failure.
G
Geoff Thorpe 已提交
5659 5660
     [Geoff Thorpe]

5661
  *) Make it possible to replace the underlying "ERR" functions such that the
G
Geoff Thorpe 已提交
5662 5663 5664 5665 5666 5667 5668 5669 5670 5671
     global state (2 LHASH tables and 2 locks) is only used by the "default"
     implementation. This change also adds two functions to "get" and "set"
     the implementation prior to it being automatically set the first time
     any other ERR function takes place. Ie. an application can call "get",
     pass the return value to a module it has just loaded, and that module
     can call its own "set" function using that value. This means the
     module's "ERR" operations will use (and modify) the error state in the
     application and not in its own statically linked copy of OpenSSL code.
     [Geoff Thorpe]

5672
  *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
5673 5674 5675 5676
     reference counts. This performs normal REF_PRINT/REF_CHECK macros on
     the operation, and provides a more encapsulated way for external code
     (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
     to use these functions rather than manually incrementing the counts.
5677 5678

     Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
5679 5680
     [Geoff Thorpe]

5681
  *) Add EVP test program.
B
Ben Laurie 已提交
5682 5683
     [Ben Laurie]

5684
  *) Add symmetric cipher support to ENGINE. Expect the API to change!
5685 5686
     [Ben Laurie]

5687
  *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
D
 
Dr. Stephen Henson 已提交
5688 5689 5690 5691 5692 5693
     X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
     X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
     These allow a CRL to be built without having to access X509_CRL fields
     directly. Modify 'ca' application to use new functions.
     [Steve Henson]

5694
  *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
5695
     bug workarounds. Rollback attack detection is a security feature.
B
Bodo Möller 已提交
5696
     The problem will only arise on OpenSSL servers when TLSv1 is not
5697 5698 5699 5700 5701
     available (sslv3_server_method() or SSL_OP_NO_TLSv1).
     Software authors not wanting to support TLSv1 will have special reasons
     for their choice and can explicitly enable this option.
     [Bodo Moeller, Lutz Jaenicke]

5702
  *) Rationalise EVP so it can be extended: don't include a union of
B
Bodo Möller 已提交
5703 5704
     cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
     (similar to those existing for EVP_CIPHER_CTX).
B
Bodo Möller 已提交
5705 5706 5707 5708 5709 5710 5711 5712 5713 5714
     Usage example:

         EVP_MD_CTX md;

         EVP_MD_CTX_init(&md);             /* new function call */
         EVP_DigestInit(&md, EVP_sha1());
         EVP_DigestUpdate(&md, in, len);
         EVP_DigestFinal(&md, out, NULL);
         EVP_MD_CTX_cleanup(&md);          /* new function call */

5715 5716
     [Ben Laurie]

5717
  *) Make DES key schedule conform to the usual scheme, as well as
B
Ben Laurie 已提交
5718 5719 5720
     correcting its structure. This means that calls to DES functions
     now have to pass a pointer to a des_key_schedule instead of a
     plain des_key_schedule (which was actually always a pointer
B
Bodo Möller 已提交
5721 5722 5723 5724 5725 5726 5727 5728
     anyway): E.g.,

         des_key_schedule ks;

	 des_set_key_checked(..., &ks);
	 des_ncbc_encrypt(..., &ks, ...);

     (Note that a later change renames 'des_...' into 'DES_...'.)
5729 5730
     [Ben Laurie]

5731
  *) Initial reduction of linker bloat: the use of some functions, such as
D
 
Dr. Stephen Henson 已提交
5732 5733 5734 5735 5736 5737 5738
     PEM causes large amounts of unused functions to be linked in due to
     poor organisation. For example pem_all.c contains every PEM function
     which has a knock on effect of linking in large amounts of (unused)
     ASN1 code. Grouping together similar functions and splitting unrelated
     functions prevents this.
     [Steve Henson]

5739
  *) Cleanup of EVP macros.
5740
     [Ben Laurie]
5741

5742
  *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
5743 5744
     correct _ecb suffix.
     [Ben Laurie]
5745

5746
  *) Add initial OCSP responder support to ocsp application. The
D
 
Dr. Stephen Henson 已提交
5747 5748 5749 5750 5751 5752
     revocation information is handled using the text based index
     use by the ca application. The responder can either handle
     requests generated internally, supplied in files (for example
     via a CGI script) or using an internal minimal server.
     [Steve Henson]

5753
  *) Add configuration choices to get zlib compression for TLS.
5754 5755
     [Richard Levitte]

5756
  *) Changes to Kerberos SSL for RFC 2712 compliance:
5757 5758 5759 5760 5761 5762 5763 5764 5765 5766 5767 5768
     1.  Implemented real KerberosWrapper, instead of just using
         KRB5 AP_REQ message.  [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
     2.  Implemented optional authenticator field of KerberosWrapper.

     Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
     and authenticator structs; see crypto/krb5/.

     Generalized Kerberos calls to support multiple Kerberos libraries.
     [Vern Staats <staatsvr@asc.hpc.mil>,
      Jeffrey Altman <jaltman@columbia.edu>
      via Richard Levitte]

5769
  *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
5770 5771 5772 5773 5774
     already does with RSA. testdsa.h now has 'priv_key/pub_key'
     values for each of the key sizes rather than having just
     parameters (and 'speed' generating keys each time).
     [Geoff Thorpe]

5775
  *) Speed up EVP routines.
5776 5777 5778 5779 5780 5781 5782 5783 5784 5785 5786 5787
     Before:
encrypt
type              8 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
des-cbc           4408.85k     5560.51k     5778.46k     5862.20k     5825.16k
des-cbc           4389.55k     5571.17k     5792.23k     5846.91k     5832.11k
des-cbc           4394.32k     5575.92k     5807.44k     5848.37k     5841.30k
decrypt
des-cbc           3482.66k     5069.49k     5496.39k     5614.16k     5639.28k
des-cbc           3480.74k     5068.76k     5510.34k     5609.87k     5635.52k
des-cbc           3483.72k     5067.62k     5504.60k     5708.01k     5724.80k
     After:
encrypt
5788
des-cbc           4660.16k     5650.19k     5807.19k     5827.13k     5783.32k
5789
decrypt
5790
des-cbc           3624.96k     5258.21k     5530.91k     5624.30k     5628.26k
5791 5792
     [Ben Laurie]

5793
  *) Added the OS2-EMX target.
R
Richard Levitte 已提交
5794 5795
     ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]

5796
  *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
D
 
Dr. Stephen Henson 已提交
5797 5798 5799 5800 5801 5802 5803
     to support NCONF routines in extension code. New function CONF_set_nconf()
     to allow functions which take an NCONF to also handle the old LHASH
     structure: this means that the old CONF compatible routines can be
     retained (in particular wrt extensions) without having to duplicate the
     code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
     [Steve Henson]

5804
  *) Enhance the general user interface with mechanisms for inner control
U
ispell  
Ulf Möller 已提交
5805
     and with possibilities to have yes/no kind of prompts.
R
Richard Levitte 已提交
5806 5807
     [Richard Levitte]

5808
  *) Change all calls to low level digest routines in the library and
D
 
Dr. Stephen Henson 已提交
5809 5810 5811 5812
     applications to use EVP. Add missing calls to HMAC_cleanup() and
     don't assume HMAC_CTX can be copied using memcpy().
     [Verdon Walker <VWalker@novell.com>, Steve Henson]

5813
  *) Add the possibility to control engines through control names but with
5814 5815 5816 5817
     arbitrary arguments instead of just a string.
     Change the key loaders to take a UI_METHOD instead of a callback
     function pointer.  NOTE: this breaks binary compatibility with earlier
     versions of OpenSSL [engine].
U
ispell  
Ulf Möller 已提交
5818
     Adapt the nCipher code for these new conditions and add a card insertion
5819 5820 5821
     callback.
     [Richard Levitte]

5822
  *) Enhance the general user interface with mechanisms to better support
5823 5824
     dialog box interfaces, application-defined prompts, the possibility
     to use defaults (for example default passwords from somewhere else)
U
ispell  
Ulf Möller 已提交
5825
     and interrupts/cancellations.
5826 5827
     [Richard Levitte]

5828
  *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
5829 5830 5831
     attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
     [Steve Henson]

5832
  *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
U
ispell  
Ulf Möller 已提交
5833
     tidy up some unnecessarily weird code in 'sk_new()').
5834 5835
     [Geoff, reported by Diego Tartara <dtartara@novamens.com>]

5836
  *) Change the key loading routines for ENGINEs to use the same kind
5837 5838 5839 5840
     callback (pem_password_cb) as all other routines that need this
     kind of callback.
     [Richard Levitte]

5841
  *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
5842 5843
     256 bit (=32 byte) keys. Of course seeding with more entropy bytes
     than this minimum value is recommended.
5844
     [Lutz Jaenicke]
5845

5846
  *) New random seeder for OpenVMS, using the system process statistics
R
Richard Levitte 已提交
5847 5848 5849
     that are easily reachable.
     [Richard Levitte]

5850
  *) Windows apparently can't transparently handle global
5851 5852 5853 5854 5855
     variables defined in DLLs. Initialisations such as:

        const ASN1_ITEM *it = &ASN1_INTEGER_it;

     wont compile. This is used by the any applications that need to
U
ispell  
Ulf Möller 已提交
5856
     declare their own ASN1 modules. This was fixed by adding the option
5857 5858 5859 5860
     EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
     needed for static libraries under Win32.
     [Steve Henson]

5861
  *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
D
 
Dr. Stephen Henson 已提交
5862 5863 5864 5865
     setting of purpose and trust fields. New X509_STORE trust and
     purpose functions and tidy up setting in other SSL functions.
     [Steve Henson]

5866
  *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
5867 5868 5869 5870 5871 5872 5873 5874 5875 5876 5877 5878 5879 5880
     structure. These are inherited by X509_STORE_CTX when it is 
     initialised. This allows various defaults to be set in the
     X509_STORE structure (such as flags for CRL checking and custom
     purpose or trust settings) for functions which only use X509_STORE_CTX
     internally such as S/MIME.

     Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
     trust settings if they are not set in X509_STORE. This allows X509_STORE
     purposes and trust (in S/MIME for example) to override any set by default.

     Add command line options for CRL checking to smime, s_client and s_server
     applications.
     [Steve Henson]

5881
  *) Initial CRL based revocation checking. If the CRL checking flag(s)
D
 
Dr. Stephen Henson 已提交
5882 5883 5884 5885 5886 5887 5888 5889 5890 5891 5892 5893 5894 5895
     are set then the CRL is looked up in the X509_STORE structure and
     its validity and signature checked, then if the certificate is found
     in the CRL the verify fails with a revoked error.

     Various new CRL related callbacks added to X509_STORE_CTX structure.

     Command line options added to 'verify' application to support this.

     This needs some additional work, such as being able to handle multiple
     CRLs with different times, extension based lookup (rather than just
     by subject name) and ultimately more complete V2 CRL extension
     handling.
     [Steve Henson]

5896
  *) Add a general user interface API (crypto/ui/).  This is designed
5897 5898 5899 5900 5901
     to replace things like des_read_password and friends (backward
     compatibility functions using this new API are provided).
     The purpose is to remove prompting functions from the DES code
     section as well as provide for prompting through dialog boxes in
     a window system and the like.
5902 5903
     [Richard Levitte]

5904
  *) Add "ex_data" support to ENGINE so implementations can add state at a
G
Geoff Thorpe 已提交
5905 5906 5907
     per-structure level rather than having to store it globally.
     [Geoff]

5908
  *) Make it possible for ENGINE structures to be copied when retrieved by
G
Geoff Thorpe 已提交
5909 5910 5911 5912 5913 5914 5915 5916 5917 5918 5919
     ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
     This causes the "original" ENGINE structure to act like a template,
     analogous to the RSA vs. RSA_METHOD type of separation. Because of this
     operational state can be localised to each ENGINE structure, despite the
     fact they all share the same "methods". New ENGINE structures returned in
     this case have no functional references and the return value is the single
     structural reference. This matches the single structural reference returned
     by ENGINE_by_id() normally, when it is incremented on the pre-existing
     ENGINE structure.
     [Geoff]

5920
  *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
D
 
Dr. Stephen Henson 已提交
5921 5922 5923 5924
     needs to match any other type at all we need to manually clear the
     tag cache.
     [Steve Henson]

5925
  *) Changes to the "openssl engine" utility to include;
5926 5927 5928 5929 5930 5931 5932 5933 5934
     - verbosity levels ('-v', '-vv', and '-vvv') that provide information
       about an ENGINE's available control commands.
     - executing control commands from command line arguments using the
       '-pre' and '-post' switches. '-post' is only used if '-t' is
       specified and the ENGINE is successfully initialised. The syntax for
       the individual commands are colon-separated, for example;
	 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
     [Geoff]

5935
  *) New dynamic control command support for ENGINEs. ENGINEs can now
5936 5937 5938 5939 5940 5941 5942 5943 5944 5945 5946 5947 5948 5949 5950 5951 5952 5953
     declare their own commands (numbers), names (strings), descriptions,
     and input types for run-time discovery by calling applications. A
     subset of these commands are implicitly classed as "executable"
     depending on their input type, and only these can be invoked through
     the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
     can be based on user input, config files, etc). The distinction is
     that "executable" commands cannot return anything other than a boolean
     result and can only support numeric or string input, whereas some
     discoverable commands may only be for direct use through
     ENGINE_ctrl(), eg. supporting the exchange of binary data, function
     pointers, or other custom uses. The "executable" commands are to
     support parameterisations of ENGINE behaviour that can be
     unambiguously defined by ENGINEs and used consistently across any
     OpenSSL-based application. Commands have been added to all the
     existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
     control over shared-library paths without source code alterations.
     [Geoff]

5954
  *) Changed all ENGINE implementations to dynamically allocate their
5955 5956 5957 5958 5959 5960
     ENGINEs rather than declaring them statically. Apart from this being
     necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
     this also allows the implementations to compile without using the
     internal engine_int.h header.
     [Geoff]

5961
  *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5962 5963 5964 5965 5966
     'const' value. Any code that should be able to modify a RAND_METHOD
     should already have non-const pointers to it (ie. they should only
     modify their own ones).
     [Geoff]

5967
  *) Made a variety of little tweaks to the ENGINE code.
5968 5969 5970 5971 5972 5973 5974 5975 5976 5977 5978 5979
     - "atalla" and "ubsec" string definitions were moved from header files
       to C code. "nuron" string definitions were placed in variables
       rather than hard-coded - allowing parameterisation of these values
       later on via ctrl() commands.
     - Removed unused "#if 0"'d code.
     - Fixed engine list iteration code so it uses ENGINE_free() to release
       structural references.
     - Constified the RAND_METHOD element of ENGINE structures.
     - Constified various get/set functions as appropriate and added
       missing functions (including a catch-all ENGINE_cpy that duplicates
       all ENGINE values onto a new ENGINE except reference counts/state).
     - Removed NULL parameter checks in get/set functions. Setting a method
B
Bodo Moeller 已提交
5980
       or function to NULL is a way of cancelling out a previously set
5981 5982 5983 5984 5985 5986 5987 5988
       value.  Passing a NULL ENGINE parameter is just plain stupid anyway
       and doesn't justify the extra error symbols and code.
     - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
       flags from engine_int.h to engine.h.
     - Changed prototypes for ENGINE handler functions (init(), finish(),
       ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
     [Geoff]

5989
  *) Implement binary inversion algorithm for BN_mod_inverse in addition
U
ispell  
Ulf Möller 已提交
5990
     to the algorithm using long division.  The binary algorithm can be
5991 5992 5993 5994 5995 5996
     used only if the modulus is odd.  On 32-bit systems, it is faster
     only for relatively small moduli (roughly 20-30% for 128-bit moduli,
     roughly 5-15% for 256-bit moduli), so we use it only for moduli
     up to 450 bits.  In 64-bit environments, the binary algorithm
     appears to be advantageous for much longer moduli; here we use it
     for moduli up to 2048 bits.
5997 5998
     [Bodo Moeller]

5999
  *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
6000 6001 6002
     could not support the combine flag in choice fields.
     [Steve Henson]

6003
  *) Add a 'copy_extensions' option to the 'ca' utility. This copies
6004 6005 6006
     extensions from a certificate request to the certificate.
     [Steve Henson]

6007
  *) Allow multiple 'certopt' and 'nameopt' options to be separated
D
 
Dr. Stephen Henson 已提交
6008 6009 6010 6011 6012 6013 6014 6015
     by commas. Add 'namopt' and 'certopt' options to the 'ca' config
     file: this allows the display of the certificate about to be
     signed to be customised, to allow certain fields to be included
     or excluded and extension details. The old system didn't display
     multicharacter strings properly, omitted fields not in the policy
     and couldn't display additional details such as extensions.
     [Steve Henson]

6016
  *) Function EC_POINTs_mul for multiple scalar multiplication
B
Bodo Möller 已提交
6017 6018 6019 6020 6021
     of an arbitrary number of elliptic curve points
          \sum scalars[i]*points[i],
     optionally including the generator defined for the EC_GROUP:
          scalar*generator +  \sum scalars[i]*points[i].

6022 6023 6024
     EC_POINT_mul is a simple wrapper function for the typical case
     that the point list has just one item (besides the optional
     generator).
6025 6026
     [Bodo Moeller]

6027
  *) First EC_METHODs for curves over GF(p):
6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039

     EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
     operations and provides various method functions that can also
     operate with faster implementations of modular arithmetic.     

     EC_GFp_mont_method() reuses most functions that are part of
     EC_GFp_simple_method, but uses Montgomery arithmetic.

     [Bodo Moeller; point addition and point doubling
     implementation directly derived from source code provided by
     Lenka Fibikova <fibikova@exp-math.uni-essen.de>]

6040
  *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
6041 6042
     crypto/ec/ec_lib.c):

B
Bodo Möller 已提交
6043 6044
     Curves are EC_GROUP objects (with an optional group generator)
     based on EC_METHODs that are built into the library.
6045 6046 6047 6048

     Points are EC_POINT objects based on EC_GROUP objects.

     Most of the framework would be able to handle curves over arbitrary
B
Bodo Möller 已提交
6049 6050
     finite fields, but as there are no obvious types for fields other
     than GF(p), some functions are limited to that for now.
6051 6052
     [Bodo Moeller]

6053
  *) Add the -HTTP option to s_server.  It is similar to -WWW, but requires
6054 6055 6056
     that the file contains a complete HTTP response.
     [Richard Levitte]

6057
  *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
D
 
Dr. Stephen Henson 已提交
6058 6059 6060 6061 6062 6063
     change the def and num file printf format specifier from "%-40sXXX"
     to "%-39s XXX". The latter will always guarantee a space after the
     field while the former will cause them to run together if the field
     is 40 of more characters long.
     [Steve Henson]

6064
  *) Constify the cipher and digest 'method' functions and structures
D
 
Dr. Stephen Henson 已提交
6065 6066 6067 6068
     and modify related functions to take constant EVP_MD and EVP_CIPHER
     pointers.
     [Steve Henson]

6069
  *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
6070
     in <openssl/bn.h>.  Also further increase BN_CTX_NUM to 32.
B
Bodo Möller 已提交
6071 6072
     [Bodo Moeller]

6073
  *) Modify EVP_Digest*() routines so they now return values. Although the
D
 
Dr. Stephen Henson 已提交
6074 6075 6076 6077
     internal software routines can never fail additional hardware versions
     might.
     [Steve Henson]

6078
  *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
B
Bodo Möller 已提交
6079 6080 6081 6082 6083 6084 6085 6086 6087 6088 6089 6090 6091 6092 6093 6094 6095

     Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
     (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.

     ASN1 error codes
          ERR_R_NESTED_ASN1_ERROR
          ...
          ERR_R_MISSING_ASN1_EOS
     were 4 .. 9, conflicting with
          ERR_LIB_RSA (= ERR_R_RSA_LIB)
          ...
          ERR_LIB_PEM (= ERR_R_PEM_LIB).
     They are now 58 .. 63 (i.e., just below ERR_R_FATAL).

     Add new error code 'ERR_R_INTERNAL_ERROR'.
     [Bodo Moeller]

6096
  *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
B
Bodo Möller 已提交
6097 6098 6099
     suffices.
     [Bodo Moeller]

6100
  *) New option '-subj arg' for 'openssl req' and 'openssl ca'.  This
6101 6102 6103 6104 6105 6106 6107 6108 6109
     sets the subject name for a new request or supersedes the
     subject name in a given request. Formats that can be parsed are
          'CN=Some Name, OU=myOU, C=IT'
     and
          'CN=Some Name/OU=myOU/C=IT'.

     Add options '-batch' and '-verbose' to 'openssl req'.
     [Massimiliano Pala <madwolf@hackmasters.net>]

6110
  *) Introduce the possibility to access global variables through
6111 6112 6113 6114 6115 6116 6117 6118 6119 6120 6121 6122 6123 6124 6125 6126 6127 6128 6129 6130 6131
     functions on platform were that's the best way to handle exporting
     global variables in shared libraries.  To enable this functionality,
     one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
     "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
     is normally done by Configure or something similar).

     To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
     in the source file (foo.c) like this:

	OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
	OPENSSL_IMPLEMENT_GLOBAL(double,bar);

     To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
     and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:

	OPENSSL_DECLARE_GLOBAL(int,foo);
	#define foo OPENSSL_GLOBAL_REF(foo)
	OPENSSL_DECLARE_GLOBAL(double,bar);
	#define bar OPENSSL_GLOBAL_REF(bar)

     The #defines are very important, and therefore so is including the
U
ispell  
Ulf Möller 已提交
6132
     header file everywhere where the defined globals are used.
6133 6134

     The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
U
ispell  
Ulf Möller 已提交
6135
     of ASN.1 items, but that structure is a bit different.
6136 6137 6138 6139 6140 6141 6142 6143

     The largest change is in util/mkdef.pl which has been enhanced with
     better and easier to understand logic to choose which symbols should
     go into the Windows .def files as well as a number of fixes and code
     cleanup (among others, algorithm keywords are now sorted
     lexicographically to avoid constant rewrites).
     [Richard Levitte]

6144
  *) In BN_div() keep a copy of the sign of 'num' before writing the
D
 
Dr. Stephen Henson 已提交
6145 6146 6147 6148 6149
     result to 'rm' because if rm==num the value will be overwritten
     and produce the wrong result if 'num' is negative: this caused
     problems with BN_mod() and BN_nnmod().
     [Steve Henson]

6150
  *) Function OCSP_request_verify(). This checks the signature on an
D
 
Dr. Stephen Henson 已提交
6151 6152 6153 6154 6155
     OCSP request and verifies the signer certificate. The signer
     certificate is just checked for a generic purpose and OCSP request
     trust settings.
     [Steve Henson]

6156
  *) Add OCSP_check_validity() function to check the validity of OCSP
6157 6158 6159
     responses. OCSP responses are prepared in real time and may only
     be a few seconds old. Simply checking that the current time lies
     between thisUpdate and nextUpdate max reject otherwise valid responses
U
ispell  
Ulf Möller 已提交
6160
     caused by either OCSP responder or client clock inaccuracy. Instead
6161 6162 6163 6164 6165 6166
     we allow thisUpdate and nextUpdate to fall within a certain period of
     the current time. The age of the response can also optionally be
     checked. Two new options -validity_period and -status_age added to
     ocsp utility.
     [Steve Henson]

6167
  *) If signature or public key algorithm is unrecognized print out its
U
ispell  
Ulf Möller 已提交
6168
     OID rather that just UNKNOWN.
D
 
Dr. Stephen Henson 已提交
6169 6170
     [Steve Henson]

6171
  *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
6172 6173 6174 6175 6176
     OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
     ID to be generated from the issuer certificate alone which can then be
     passed to OCSP_id_issuer_cmp().
     [Steve Henson]

6177
  *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188
     ASN1 modules to export functions returning ASN1_ITEM pointers
     instead of the ASN1_ITEM structures themselves. This adds several
     new macros which allow the underlying ASN1 function/structure to
     be accessed transparently. As a result code should not use ASN1_ITEM
     references directly (such as &X509_it) but instead use the relevant
     macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
     use of the new ASN1 code on platforms where exporting structures
     is problematical (for example in shared libraries) but exporting
     functions returning pointers to structures is not.
     [Steve Henson]

6189
  *) Add support for overriding the generation of SSL/TLS session IDs.
6190 6191 6192 6193 6194 6195 6196 6197
     These callbacks can be registered either in an SSL_CTX or per SSL.
     The purpose of this is to allow applications to control, if they wish,
     the arbitrary values chosen for use as session IDs, particularly as it
     can be useful for session caching in multiple-server environments. A
     command-line switch for testing this (and any client code that wishes
     to use such a feature) has been added to "s_server".
     [Geoff Thorpe, Lutz Jaenicke]

6198
  *) Modify mkdef.pl to recognise and parse preprocessor conditionals
6199 6200 6201 6202 6203
     of the form '#if defined(...) || defined(...) || ...' and
     '#if !defined(...) && !defined(...) && ...'.  This also avoids
     the growing number of special cases it was previously handling.
     [Richard Levitte]

6204
  *) Make all configuration macros available for application by making
6205 6206 6207 6208
     sure they are available in opensslconf.h, by giving them names starting
     with "OPENSSL_" to avoid conflicts with other packages and by making
     sure e_os2.h will cover all platform-specific cases together with
     opensslconf.h.
6209 6210 6211 6212 6213 6214
     Additionally, it is now possible to define configuration/platform-
     specific names (called "system identities").  In the C code, these
     are prefixed with "OPENSSL_SYSNAME_".  e_os2.h will create another
     macro with the name beginning with "OPENSSL_SYS_", which is determined
     from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
     what is available.
6215 6216
     [Richard Levitte]

6217
  *) New option -set_serial to 'req' and 'x509' this allows the serial
6218 6219 6220 6221 6222 6223
     number to use to be specified on the command line. Previously self
     signed certificates were hard coded with serial number 0 and the 
     CA options of 'x509' had to use a serial number in a file which was
     auto incremented.
     [Steve Henson]

6224
  *) New options to 'ca' utility to support V2 CRL entry extensions.
6225 6226 6227 6228
     Currently CRL reason, invalidity date and hold instruction are
     supported. Add new CRL extensions to V3 code and some new objects.
     [Steve Henson]

6229
  *) New function EVP_CIPHER_CTX_set_padding() this is used to
6230 6231 6232 6233 6234 6235
     disable standard block padding (aka PKCS#5 padding) in the EVP
     API, which was previously mandatory. This means that the data is
     not padded in any way and so the total length much be a multiple
     of the block size, otherwise an error occurs.
     [Steve Henson]

6236
  *) Initial (incomplete) OCSP SSL support.
D
Dr. Stephen Henson 已提交
6237 6238
     [Steve Henson]

6239
  *) New function OCSP_parse_url(). This splits up a URL into its host,
6240 6241 6242 6243
     port and path components: primarily to parse OCSP URLs. New -url
     option to ocsp utility.
     [Steve Henson]

6244
  *) New nonce behavior. The return value of OCSP_check_nonce() now 
6245 6246 6247 6248 6249 6250 6251 6252
     reflects the various checks performed. Applications can decide
     whether to tolerate certain situations such as an absent nonce
     in a response when one was present in a request: the ocsp application
     just prints out a warning. New function OCSP_add1_basic_nonce()
     this is to allow responders to include a nonce in a response even if
     the request is nonce-less.
     [Steve Henson]

6253
  *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
6254 6255 6256 6257
     skipped when using openssl x509 multiple times on a single input file,
     e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
     [Bodo Moeller]

6258
  *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
D
 
Dr. Stephen Henson 已提交
6259 6260 6261 6262
     set string type: to handle setting ASN1_TIME structures. Fix ca
     utility to correctly initialize revocation date of CRLs.
     [Steve Henson]

6263
  *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
6264 6265 6266
     the clients preferred ciphersuites and rather use its own preferences.
     Should help to work around M$ SGC (Server Gated Cryptography) bug in
     Internet Explorer by ensuring unchanged hash method during stepup.
L
Lutz Jänicke 已提交
6267
     (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
6268 6269
     [Lutz Jaenicke]

6270
  *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
6271 6272 6273 6274
     to aes and add a new 'exist' option to print out symbols that don't
     appear to exist.
     [Steve Henson]

6275
  *) Additional options to ocsp utility to allow flags to be set and
6276 6277 6278
     additional certificates supplied.
     [Steve Henson]

6279
  *) Add the option -VAfile to 'openssl ocsp', so the user can give the
6280 6281 6282 6283
     OCSP client a number of certificate to only verify the response
     signature against.
     [Richard Levitte]

6284
  *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
D
 
Dr. Stephen Henson 已提交
6285
     handle the new API. Currently only ECB, CBC modes supported. Add new
B
update  
Bodo Möller 已提交
6286 6287
     AES OIDs.

6288 6289 6290 6291 6292 6293 6294 6295 6296
     Add TLS AES ciphersuites as described in RFC3268, "Advanced
     Encryption Standard (AES) Ciphersuites for Transport Layer
     Security (TLS)".  (In beta versions of OpenSSL 0.9.7, these were
     not enabled by default and were not part of the "ALL" ciphersuite
     alias because they were not yet official; they could be
     explicitly requested by specifying the "AESdraft" ciphersuite
     group alias.  In the final release of OpenSSL 0.9.7, the group
     alias is called "AES" and is part of "ALL".)
     [Ben Laurie, Steve  Henson, Bodo Moeller]
D
 
Dr. Stephen Henson 已提交
6297

6298
  *) New function OCSP_copy_nonce() to copy nonce value (if present) from
6299 6300 6301
     request to response.
     [Steve Henson]

6302
  *) Functions for OCSP responders. OCSP_request_onereq_count(),
D
 
Dr. Stephen Henson 已提交
6303 6304 6305 6306
     OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
     extract information from a certificate request. OCSP_response_create()
     creates a response and optionally adds a basic response structure.
     OCSP_basic_add1_status() adds a complete single response to a basic
U
ispell  
Ulf Möller 已提交
6307
     response and returns the OCSP_SINGLERESP structure just added (to allow
D
 
Dr. Stephen Henson 已提交
6308 6309 6310 6311 6312 6313 6314
     extensions to be included for example). OCSP_basic_add1_cert() adds a
     certificate to a basic response and OCSP_basic_sign() signs a basic
     response with various flags. New helper functions ASN1_TIME_check()
     (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
     (converts ASN1_TIME to GeneralizedTime).
     [Steve Henson]

6315
  *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
6316
     in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
U
ispell  
Ulf Möller 已提交
6317
     structure from a certificate. X509_pubkey_digest() digests the public_key
6318 6319 6320
     contents: this is used in various key identifiers. 
     [Steve Henson]

6321
  *) Make sk_sort() tolerate a NULL argument.
6322 6323
     [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]

6324
  *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
6325
     passed by the function are trusted implicitly. If any of them signed the
U
ispell  
Ulf Möller 已提交
6326
     response then it is assumed to be valid and is not verified.
6327 6328
     [Steve Henson]

6329
  *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
6330 6331 6332 6333 6334
     to data. This was previously part of the PKCS7 ASN1 code. This
     was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
     [Steve Henson, reported by Kenneth R. Robinette
				<support@securenetterm.com>]

6335
  *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
6336 6337 6338 6339
     routines: without these tracing memory leaks is very painful.
     Fix leaks in PKCS12 and PKCS7 routines.
     [Steve Henson]

6340
  *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
6341 6342 6343 6344 6345 6346 6347 6348
     Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
     effectively meant GeneralizedTime would never be used. Now it
     is initialised to -1 but X509_time_adj() now has to check the value
     and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
     V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
     [Steve Henson, reported by Kenneth R. Robinette
				<support@securenetterm.com>]

6349
  *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
6350 6351 6352 6353 6354 6355 6356
     result in a zero length in the ASN1_INTEGER structure which was
     not consistent with the structure when d2i_ASN1_INTEGER() was used
     and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
     to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
     where it did not print out a minus for negative ASN1_INTEGER.
     [Steve Henson]

6357
  *) Add summary printout to ocsp utility. The various functions which
6358 6359 6360 6361 6362 6363 6364
     convert status values to strings have been renamed to:
     OCSP_response_status_str(), OCSP_cert_status_str() and
     OCSP_crl_reason_str() and are no longer static. New options
     to verify nonce values and to disable verification. OCSP response
     printout format cleaned up.
     [Steve Henson]

6365
  *) Add additional OCSP certificate checks. These are those specified
6366 6367 6368 6369 6370 6371 6372 6373 6374
     in RFC2560. This consists of two separate checks: the CA of the
     certificate being checked must either be the OCSP signer certificate
     or the issuer of the OCSP signer certificate. In the latter case the
     OCSP signer certificate must contain the OCSP signing extended key
     usage. This check is performed by attempting to match the OCSP
     signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
     in the OCSP_CERTID structures of the response.
     [Steve Henson]

6375
  *) Initial OCSP certificate verification added to OCSP_basic_verify()
D
 
Dr. Stephen Henson 已提交
6376 6377 6378 6379 6380 6381 6382 6383 6384
     and related routines. This uses the standard OpenSSL certificate
     verify routines to perform initial checks (just CA validity) and
     to obtain the certificate chain. Then additional checks will be
     performed on the chain. Currently the root CA is checked to see
     if it is explicitly trusted for OCSP signing. This is used to set
     a root CA as a global signing root: that is any certificate that
     chains to that CA is an acceptable OCSP signing certificate.
     [Steve Henson]

6385
  *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
6386 6387 6388 6389 6390 6391
     extensions from a separate configuration file.
     As when reading extensions from the main configuration file,
     the '-extensions ...' option may be used for specifying the
     section to use.
     [Massimiliano Pala <madwolf@comune.modena.it>]

6392
  *) New OCSP utility. Allows OCSP requests to be generated or
D
 
Dr. Stephen Henson 已提交
6393 6394 6395 6396 6397
     read. The request can be sent to a responder and the output
     parsed, outputed or printed in text form. Not complete yet:
     still needs to check the OCSP response validity.
     [Steve Henson]

6398
  *) New subcommands for 'openssl ca':
6399 6400 6401 6402 6403 6404
     'openssl ca -status <serial>' prints the status of the cert with
     the given serial number (according to the index file).
     'openssl ca -updatedb' updates the expiry status of certificates
     in the index file.
     [Massimiliano Pala <madwolf@comune.modena.it>]

6405
  *) New '-newreq-nodes' command option to CA.pl.  This is like
6406 6407 6408 6409
     '-newreq', but calls 'openssl req' with the '-nodes' option
     so that the resulting key is not encrypted.
     [Damien Miller <djm@mindrot.org>]

6410
  *) New configuration for the GNU Hurd.
6411 6412
     [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]

6413
  *) Initial code to implement OCSP basic response verify. This
D
 
Dr. Stephen Henson 已提交
6414 6415 6416 6417
     is currently incomplete. Currently just finds the signer's
     certificate and verifies the signature on the response.
     [Steve Henson]

6418
  *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
6419 6420 6421 6422
     value of OPENSSLDIR.  This is available via the new '-d' option
     to 'openssl version', and is also included in 'openssl version -a'.
     [Bodo Moeller]

6423
  *) Allowing defining memory allocation callbacks that will be given
6424 6425 6426 6427 6428 6429 6430
     file name and line number information in additional arguments
     (a const char* and an int).  The basic functionality remains, as
     well as the original possibility to just replace malloc(),
     realloc() and free() by functions that do not know about these
     additional arguments.  To register and find out the current
     settings for extended allocation functions, the following
     functions are provided:
6431 6432 6433 6434 6435 6436

	CRYPTO_set_mem_ex_functions
	CRYPTO_set_locked_mem_ex_functions
	CRYPTO_get_mem_ex_functions
	CRYPTO_get_locked_mem_ex_functions

6437 6438 6439 6440 6441 6442
     These work the same way as CRYPTO_set_mem_functions and friends.
     CRYPTO_get_[locked_]mem_functions now writes 0 where such an
     extended allocation function is enabled.
     Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
     a conventional allocation function is enabled.
     [Richard Levitte, Bodo Moeller]
6443

6444
  *) Finish off removing the remaining LHASH function pointer casts.
6445
     There should no longer be any prototype-casting required when using
6446 6447 6448
     the LHASH abstraction, and any casts that remain are "bugs". See
     the callback types and macros at the head of lhash.h for details
     (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
6449 6450
     [Geoff Thorpe]

6451
  *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
6452 6453 6454 6455 6456 6457
     If /dev/[u]random devices are not available or do not return enough
     entropy, EGD style sockets (served by EGD or PRNGD) will automatically
     be queried.
     The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
     /etc/entropy will be queried once each in this sequence, quering stops
     when enough entropy was collected without querying more sockets.
6458 6459
     [Lutz Jaenicke]

6460
  *) Change the Unix RAND_poll() variant to be able to poll several
6461 6462 6463 6464 6465 6466 6467 6468
     random devices, as specified by DEVRANDOM, until a sufficient amount
     of data has been collected.   We spend at most 10 ms on each file
     (select timeout) and read in non-blocking mode.  DEVRANDOM now
     defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
     (previously it was just the string "/dev/urandom"), so on typical
     platforms the 10 ms delay will never occur.
     Also separate out the Unix variant to its own file, rand_unix.c.
     For VMS, there's a currently-empty rand_vms.c.
6469 6470
     [Richard Levitte]

6471
  *) Move OCSP client related routines to ocsp_cl.c. These
D
 
Dr. Stephen Henson 已提交
6472 6473 6474 6475 6476 6477 6478 6479 6480 6481 6482 6483 6484 6485 6486 6487 6488 6489 6490 6491 6492
     provide utility functions which an application needing
     to issue a request to an OCSP responder and analyse the
     response will typically need: as opposed to those which an
     OCSP responder itself would need which will be added later.

     OCSP_request_sign() signs an OCSP request with an API similar
     to PKCS7_sign(). OCSP_response_status() returns status of OCSP
     response. OCSP_response_get1_basic() extracts basic response
     from response. OCSP_resp_find_status(): finds and extracts status
     information from an OCSP_CERTID structure (which will be created
     when the request structure is built). These are built from lower
     level functions which work on OCSP_SINGLERESP structures but
     wont normally be used unless the application wishes to examine
     extensions in the OCSP response for example.

     Replace nonce routines with a pair of functions.
     OCSP_request_add1_nonce() adds a nonce value and optionally
     generates a random value. OCSP_check_nonce() checks the
     validity of the nonce in an OCSP response.
     [Steve Henson]

6493
  *) Change function OCSP_request_add() to OCSP_request_add0_id().
6494 6495 6496 6497 6498 6499 6500 6501 6502 6503
     This doesn't copy the supplied OCSP_CERTID and avoids the
     need to free up the newly created id. Change return type
     to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
     This can then be used to add extensions to the request.
     Deleted OCSP_request_new(), since most of its functionality
     is now in OCSP_REQUEST_new() (and the case insensitive name
     clash) apart from the ability to set the request name which
     will be added elsewhere.
     [Steve Henson]

6504
  *) Update OCSP API. Remove obsolete extensions argument from
D
Dr. Stephen Henson 已提交
6505 6506 6507 6508 6509
     various functions. Extensions are now handled using the new
     OCSP extension code. New simple OCSP HTTP function which 
     can be used to send requests and parse the response.
     [Steve Henson]

6510
  *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522
     ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
     uses the special reorder version of SET OF to sort the attributes
     and reorder them to match the encoded order. This resolves a long
     standing problem: a verify on a PKCS7 structure just after signing
     it used to fail because the attribute order did not match the
     encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
     it uses the received order. This is necessary to tolerate some broken
     software that does not order SET OF. This is handled by encoding
     as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
     to produce the required SET OF.
     [Steve Henson]

6523
  *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
R
Richard Levitte 已提交
6524 6525 6526 6527
     OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
     files to get correct declarations of the ASN.1 item variables.
     [Richard Levitte]

6528
  *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
D
 
Dr. Stephen Henson 已提交
6529 6530 6531 6532 6533 6534 6535
     PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
     asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
     NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
     New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
     ASN1_ITEM and no wrapper functions.
     [Steve Henson]

6536
  *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
6537 6538 6539 6540
     replace the old function pointer based I/O routines. Change most of
     the *_d2i_bio() and *_d2i_fp() functions to use these.
     [Steve Henson]

6541
  *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
B
Bodo Moeller 已提交
6542
     lines, recognice more "algorithms" that can be deselected, and make
R
Richard Levitte 已提交
6543 6544 6545
     it complain about algorithm deselection that isn't recognised.
     [Richard Levitte]

6546
  *) New ASN1 functions to handle dup, sign, verify, digest, pack and
6547 6548 6549 6550
     unpack operations in terms of ASN1_ITEM. Modify existing wrappers
     to use new functions. Add NO_ASN1_OLD which can be set to remove
     some old style ASN1 functions: this can be used to determine if old
     code will still work when these eventually go away.
6551 6552
     [Steve Henson]

6553
  *) New extension functions for OCSP structures, these follow the
D
Dr. Stephen Henson 已提交
6554 6555 6556
     same conventions as certificates and CRLs.
     [Steve Henson]

6557
  *) New function X509V3_add1_i2d(). This automatically encodes and
6558 6559
     adds an extension. Its behaviour can be customised with various
     flags to append, replace or delete. Various wrappers added for
B
Bodo Moeller 已提交
6560
     certifcates and CRLs.
6561 6562
     [Steve Henson]

6563
  *) Fix to avoid calling the underlying ASN1 print routine when
D
 
Dr. Stephen Henson 已提交
6564 6565 6566 6567
     an extension cannot be parsed. Correct a typo in the
     OCSP_SERVICELOC extension. Tidy up print OCSP format.
     [Steve Henson]

6568
  *) Make mkdef.pl parse some of the ASN1 macros and add appropriate
6569
     entries for variables.
D
 
Dr. Stephen Henson 已提交
6570
     [Steve Henson]
6571

6572
  *) Add functionality to apps/openssl.c for detecting locking
B
Bodo Möller 已提交
6573 6574 6575 6576 6577
     problems: As the program is single-threaded, all we have
     to do is register a locking callback using an array for
     storing which locks are currently held by the program.
     [Bodo Moeller]

6578
  *) Use a lock around the call to CRYPTO_get_ex_new_index() in
B
Bodo Möller 已提交
6579 6580 6581 6582 6583 6584 6585
     SSL_get_ex_data_X509_STORE_idx(), which is used in
     ssl_verify_cert_chain() and thus can be called at any time
     during TLS/SSL handshakes so that thread-safety is essential.
     Unfortunately, the ex_data design is not at all suited
     for multi-threaded use, so it probably should be abolished.
     [Bodo Moeller]

6586
  *) Added Broadcom "ubsec" ENGINE to OpenSSL.
G
Geoff Thorpe 已提交
6587 6588
     [Broadcom, tweaked and integrated by Geoff Thorpe]

6589
  *) Move common extension printing code to new function
6590
     X509V3_print_extensions(). Reorganise OCSP print routines and
6591
     implement some needed OCSP ASN1 functions. Add OCSP extensions.
6592 6593
     [Steve Henson]

6594
  *) New function X509_signature_print() to remove duplication in some
6595 6596 6597
     print routines.
     [Steve Henson]

6598
  *) Add a special meaning when SET OF and SEQUENCE OF flags are both
6599 6600 6601 6602 6603 6604 6605
     set (this was treated exactly the same as SET OF previously). This
     is used to reorder the STACK representing the structure to match the
     encoding. This will be used to get round a problem where a PKCS7
     structure which was signed could not be verified because the STACK
     order did not reflect the encoded order.
     [Steve Henson]

6606
  *) Reimplement the OCSP ASN1 module using the new code.
6607 6608
     [Steve Henson]

6609
  *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
D
 
Dr. Stephen Henson 已提交
6610 6611 6612 6613
     for its ASN1 operations. The old style function pointers still exist
     for now but they will eventually go away.
     [Steve Henson]

6614
  *) Merge in replacement ASN1 code from the ASN1 branch. This almost
D
 
Dr. Stephen Henson 已提交
6615 6616 6617 6618 6619
     completely replaces the old ASN1 functionality with a table driven
     encoder and decoder which interprets an ASN1_ITEM structure describing
     the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
     largely maintained. Almost all of the old asn1_mac.h macro based ASN1
     has also been converted to the new form.
D
 
Dr. Stephen Henson 已提交
6620 6621
     [Steve Henson]

6622
  *) Change BN_mod_exp_recp so that negative moduli are tolerated
6623 6624 6625 6626 6627
     (the sign is ignored).  Similarly, ignore the sign in BN_MONT_CTX_set
     so that BN_mod_exp_mont and BN_mod_exp_mont_word work
     for negative moduli.
     [Bodo Moeller]

6628
  *) Fix BN_uadd and BN_usub: Always return non-negative results instead
6629 6630 6631
     of not touching the result's sign bit.
     [Bodo Moeller]

6632
  *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
B
Bodo Möller 已提交
6633 6634 6635
     set.
     [Bodo Moeller]

6636
  *) Changed the LHASH code to use prototypes for callbacks, and created
G
Geoff Thorpe 已提交
6637 6638 6639 6640 6641
     macros to declare and implement thin (optionally static) functions
     that provide type-safety and avoid function pointer casting for the
     type-specific callbacks.
     [Geoff Thorpe]

6642
  *) Added Kerberos Cipher Suites to be used with TLS, as written in
B
Bodo Möller 已提交
6643
     RFC 2712.
6644
     [Veers Staats <staatsvr@asc.hpc.mil>,
U
Ulf Möller 已提交
6645
      Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
6646

6647
  *) Reformat the FAQ so the different questions and answers can be divided
U
typo  
Ulf Möller 已提交
6648
     in sections depending on the subject.
6649 6650
     [Richard Levitte]

6651
  *) Have the zlib compression code load ZLIB.DLL dynamically under
6652 6653 6654
     Windows.
     [Richard Levitte]

6655
  *) New function BN_mod_sqrt for computing square roots modulo a prime
B
Bodo Möller 已提交
6656 6657 6658
     (using the probabilistic Tonelli-Shanks algorithm unless
     p == 3 (mod 4)  or  p == 5 (mod 8),  which are cases that can
     be handled deterministically).
B
Bodo Möller 已提交
6659 6660
     [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]

6661
  *) Make BN_mod_inverse faster by explicitly handling small quotients
B
Bodo Möller 已提交
6662 6663
     in the Euclid loop. (Speed gain about 20% for small moduli [256 or
     512 bits], about 30% for larger ones [1024 or 2048 bits].)
B
Bodo Möller 已提交
6664 6665
     [Bodo Moeller]

6666
  *) New function BN_kronecker.
B
Bodo Möller 已提交
6667 6668
     [Bodo Moeller]

6669
  *) Fix BN_gcd so that it works on negative inputs; the result is
B
Bodo Möller 已提交
6670 6671 6672 6673 6674 6675
     positive unless both parameters are zero.
     Previously something reasonably close to an infinite loop was
     possible because numbers could be growing instead of shrinking
     in the implementation of Euclid's algorithm.
     [Bodo Moeller]

6676
  *) Fix BN_is_word() and BN_is_one() macros to take into account the
B
Bodo Möller 已提交
6677 6678 6679 6680 6681 6682 6683 6684 6685 6686 6687
     sign of the number in question.

     Fix BN_is_word(a,w) to work correctly for w == 0.

     The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
     because its test if the absolute value of 'a' equals 'w'.
     Note that BN_abs_is_word does *not* handle w == 0 reliably;
     it exists mostly for use in the implementations of BN_is_zero(),
     BN_is_one(), and BN_is_word().
     [Bodo Moeller]

6688
  *) New function BN_swap.
B
Bodo Möller 已提交
6689 6690
     [Bodo Moeller]

6691
  *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
B
Bodo Möller 已提交
6692 6693 6694 6695
     the exponentiation functions are more likely to produce reasonable
     results on negative inputs.
     [Bodo Moeller]

6696
  *) Change BN_mod_mul so that the result is always non-negative.
B
Bodo Möller 已提交
6697 6698 6699 6700
     Previously, it could be negative if one of the factors was negative;
     I don't think anyone really wanted that behaviour.
     [Bodo Moeller]

6701
  *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
U
Ulf Möller 已提交
6702
     (except for exponentiation, which stays in crypto/bn/bn_exp.c,
B
Bodo Möller 已提交
6703 6704
     and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
     and add new functions:
B
Bodo Möller 已提交
6705

B
Bodo Möller 已提交
6706 6707 6708
          BN_nnmod
          BN_mod_sqr
          BN_mod_add
B
Bodo Möller 已提交
6709
          BN_mod_add_quick
B
Bodo Möller 已提交
6710
          BN_mod_sub
B
Bodo Möller 已提交
6711 6712 6713 6714 6715 6716
          BN_mod_sub_quick
          BN_mod_lshift1
          BN_mod_lshift1_quick
          BN_mod_lshift
          BN_mod_lshift_quick

B
Bodo Möller 已提交
6717
     These functions always generate non-negative results.
B
Bodo Möller 已提交
6718

B
Bodo Möller 已提交
6719 6720
     BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder  r
     such that  |m| < r < 0,  BN_nnmod will output  rem + |m|  instead).
B
Bodo Möller 已提交
6721 6722 6723 6724

     BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
     BN_mod_XXX(r, a, [b,] m, ctx), but requires that  a  [and  b]
     be reduced modulo  m.
B
Bodo Möller 已提交
6725 6726
     [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]

B
Bodo Möller 已提交
6727
#if 0
6728
     The following entry accidentally appeared in the CHANGES file
B
Bodo Möller 已提交
6729 6730 6731
     distributed with OpenSSL 0.9.7.  The modifications described in
     it do *not* apply to OpenSSL 0.9.7.

6732
  *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
6733 6734
     was actually never needed) and in BN_mul().  The removal in BN_mul()
     required a small change in bn_mul_part_recursive() and the addition
U
Ulf Möller 已提交
6735 6736
     of the functions bn_cmp_part_words(), bn_sub_part_words() and
     bn_add_part_words(), which do the same thing as bn_cmp_words(),
6737 6738 6739
     bn_sub_words() and bn_add_words() except they take arrays with
     differing sizes.
     [Richard Levitte]
B
Bodo Möller 已提交
6740
#endif
6741

6742
  *) In 'openssl passwd', verify passwords read from the terminal
6743 6744 6745 6746 6747 6748 6749 6750 6751 6752 6753
     unless the '-salt' option is used (which usually means that
     verification would just waste user's time since the resulting
     hash is going to be compared with some given password hash)
     or the new '-noverify' option is used.

     This is an incompatible change, but it does not affect
     non-interactive use of 'openssl passwd' (passwords on the command
     line, '-stdin' option, '-in ...' option) and thus should not
     cause any problems.
     [Bodo Moeller]

6754
  *) Remove all references to RSAref, since there's no more need for it.
6755 6756
     [Richard Levitte]

6757
  *) Make DSO load along a path given through an environment variable
6758 6759 6760
     (SHLIB_PATH) with shl_load().
     [Richard Levitte]

6761
  *) Constify the ENGINE code as a result of BIGNUM constification.
R
Richard Levitte 已提交
6762 6763 6764 6765
     Also constify the RSA code and most things related to it.  In a
     few places, most notable in the depth of the ASN.1 code, ugly
     casts back to non-const were required (to be solved at a later
     time)
6766 6767
     [Richard Levitte]

6768
  *) Make it so the openssl application has all engines loaded by default.
6769 6770
     [Richard Levitte]

6771
  *) Constify the BIGNUM routines a little more.
6772 6773
     [Richard Levitte]

6774
  *) Add the following functions:
6775 6776 6777 6778 6779 6780 6781 6782 6783 6784 6785 6786 6787 6788 6789 6790 6791

	ENGINE_load_cswift()
	ENGINE_load_chil()
	ENGINE_load_atalla()
	ENGINE_load_nuron()
	ENGINE_load_builtin_engines()

     That way, an application can itself choose if external engines that
     are built-in in OpenSSL shall ever be used or not.  The benefit is
     that applications won't have to be linked with libdl or other dso
     libraries unless it's really needed.

     Changed 'openssl engine' to load all engines on demand.
     Changed the engine header files to avoid the duplication of some
     declarations (they differed!).
     [Richard Levitte]

6792
  *) 'openssl engine' can now list capabilities.
6793 6794
     [Richard Levitte]

6795
  *) Better error reporting in 'openssl engine'.
6796 6797
     [Richard Levitte]

6798
  *) Never call load_dh_param(NULL) in s_server.
6799 6800
     [Bodo Moeller]

6801
  *) Add engine application.  It can currently list engines by name and
6802 6803 6804
     identity, and test if they are actually available.
     [Richard Levitte]

6805
  *) Improve RPM specification file by forcing symbolic linking and making
R
Richard Levitte 已提交
6806 6807 6808
     sure the installed documentation is also owned by root.root.
     [Damien Miller <djm@mindrot.org>]

6809
  *) Give the OpenSSL applications more possibilities to make use of
R
Richard Levitte 已提交
6810 6811 6812
     keys (public as well as private) handled by engines.
     [Richard Levitte]

6813
  *) Add OCSP code that comes from CertCo.
R
Richard Levitte 已提交
6814 6815
     [Richard Levitte]

6816
  *) Add VMS support for the Rijndael code.
6817 6818
     [Richard Levitte]

6819
  *) Added untested support for Nuron crypto accelerator.
6820 6821
     [Ben Laurie]

6822
  *) Add support for external cryptographic devices.  This code was
6823 6824 6825
     previously distributed separately as the "engine" branch.
     [Geoff Thorpe, Richard Levitte]

6826
  *) Rework the filename-translation in the DSO code. It is now possible to
6827 6828 6829 6830 6831
     have far greater control over how a "name" is turned into a filename
     depending on the operating environment and any oddities about the
     different shared library filenames on each system.
     [Geoff Thorpe]

6832
  *) Support threads on FreeBSD-elf in Configure.
R
Richard Levitte 已提交
6833 6834
     [Richard Levitte]

6835
  *) Fix for SHA1 assembly problem with MASM: it produces
6836 6837 6838 6839 6840
     warnings about corrupt line number information when assembling
     with debugging information. This is caused by the overlapping
     of two sections.
     [Bernd Matthes <mainbug@celocom.de>, Steve Henson]

6841
  *) NCONF changes.
R
Richard Levitte 已提交
6842 6843 6844 6845 6846 6847 6848 6849 6850 6851
     NCONF_get_number() has no error checking at all.  As a replacement,
     NCONF_get_number_e() is defined (_e for "error checking") and is
     promoted strongly.  The old NCONF_get_number is kept around for
     binary backward compatibility.
     Make it possible for methods to load from something other than a BIO,
     by providing a function pointer that is given a name instead of a BIO.
     For example, this could be used to load configuration data from an
     LDAP server.
     [Richard Levitte]

6852
  *) Fix for non blocking accept BIOs. Added new I/O special reason
6853 6854 6855 6856 6857 6858
     BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
     with non blocking I/O was not possible because no retry code was
     implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
     this case.
     [Steve Henson]

6859
  *) Added the beginnings of Rijndael support.
6860 6861
     [Ben Laurie]

6862
  *) Fix for bug in DirectoryString mask setting. Add support for
6863 6864 6865 6866
     X509_NAME_print_ex() in 'req' and X509_print_ex() function
     to allow certificate printing to more controllable, additional
     'certopt' option to 'x509' to allow new printing options to be
     set.
6867 6868
     [Steve Henson]

6869
  *) Clean old EAY MD5 hack from e_os.h.
R
Richard Levitte 已提交
6870 6871
     [Richard Levitte]

6872
 Changes between 0.9.6l and 0.9.6m  [17 Mar 2004]
6873

6874
  *) Fix null-pointer assignment in do_change_cipher_spec() revealed
M
Mark J. Cox 已提交
6875
     by using the Codenomicon TLS Test Tool (CVE-2004-0079)
6876
     [Joe Orton, Steve Henson]
6877

6878 6879 6880
 Changes between 0.9.6k and 0.9.6l  [04 Nov 2003]

  *) Fix additional bug revealed by the NISCC test suite:
6881

6882
     Stop bug triggering large recursion when presented with
M
Mark J. Cox 已提交
6883
     certain ASN.1 tags (CVE-2003-0851)
6884 6885
     [Steve Henson]

6886 6887
 Changes between 0.9.6j and 0.9.6k  [30 Sep 2003]

6888 6889 6890
  *) Fix various bugs revealed by running the NISCC test suite:

     Stop out of bounds reads in the ASN1 code when presented with
M
Mark J. Cox 已提交
6891
     invalid tags (CVE-2003-0543 and CVE-2003-0544).
6892 6893 6894 6895 6896
     
     If verify callback ignores invalid public key errors don't try to check
     certificate signature with the NULL public key.

     [Steve Henson]
6897

6898 6899 6900 6901 6902
  *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
     if the server requested one: as stated in TLS 1.0 and SSL 3.0
     specifications.
     [Steve Henson]

6903 6904 6905 6906 6907
  *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
     extra data after the compression methods not only for TLS 1.0
     but also for SSL 3.0 (as required by the specification).
     [Bodo Moeller; problem pointed out by Matthias Loepfe]

6908
  *) Change X509_certificate_type() to mark the key as exported/exportable
R
Richard Levitte 已提交
6909 6910
     when it's 512 *bits* long, not 512 bytes.
     [Richard Levitte]
6911

6912 6913 6914 6915 6916 6917 6918 6919 6920 6921 6922 6923 6924 6925 6926 6927 6928 6929 6930 6931 6932 6933 6934 6935 6936
 Changes between 0.9.6i and 0.9.6j  [10 Apr 2003]

  *) Countermeasure against the Klima-Pokorny-Rosa extension of
     Bleichbacher's attack on PKCS #1 v1.5 padding: treat
     a protocol version number mismatch like a decryption error
     in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
     [Bodo Moeller]

  *) Turn on RSA blinding by default in the default implementation
     to avoid a timing attack. Applications that don't want it can call
     RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
     They would be ill-advised to do so in most cases.
     [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]

  *) Change RSA blinding code so that it works when the PRNG is not
     seeded (in this case, the secret RSA exponent is abused as
     an unpredictable seed -- if it is not unpredictable, there
     is no point in blinding anyway).  Make RSA blinding thread-safe
     by remembering the creator's thread ID in rsa->blinding and
     having all other threads use local one-time blinding factors
     (this requires more computation than sharing rsa->blinding, but
     avoids excessive locking; and if an RSA object is not shared
     between threads, blinding will still be very fast).
     [Bodo Moeller]

6937 6938 6939
 Changes between 0.9.6h and 0.9.6i  [19 Feb 2003]

  *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
B
Bodo Moeller 已提交
6940
     via timing by performing a MAC computation even if incorrrect
6941 6942
     block cipher padding has been found.  This is a countermeasure
     against active attacks where the attacker has to distinguish
M
Mark J. Cox 已提交
6943
     between bad padding and a MAC verification error. (CVE-2003-0078)
6944 6945 6946 6947 6948

     [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
     Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
     Martin Vuagnoux (EPFL, Ilion)]

6949
 Changes between 0.9.6g and 0.9.6h  [5 Dec 2002]
D
 
Dr. Stephen Henson 已提交
6950

6951 6952 6953 6954 6955 6956 6957 6958
  *) New function OPENSSL_cleanse(), which is used to cleanse a section of
     memory from it's contents.  This is done with a counter that will
     place alternating values in each byte.  This can be used to solve
     two issues: 1) the removal of calls to memset() by highly optimizing
     compilers, and 2) cleansing with other values than 0, since those can
     be read through on certain media, for example a swap space on disk.
     [Geoff Thorpe]

6959 6960 6961 6962 6963 6964 6965
  *) Bugfix: client side session caching did not work with external caching,
     because the session->cipher setting was not restored when reloading
     from the external cache. This problem was masked, when
     SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
     (Found by Steve Haslam <steve@araqnid.ddts.net>.)
     [Lutz Jaenicke]

6966 6967 6968 6969
  *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
     length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
     [Zeev Lieber <zeev-l@yahoo.com>]

6970 6971 6972 6973 6974 6975
  *) Undo an undocumented change introduced in 0.9.6e which caused
     repeated calls to OpenSSL_add_all_ciphers() and 
     OpenSSL_add_all_digests() to be ignored, even after calling
     EVP_cleanup().
     [Richard Levitte]

6976 6977 6978 6979
  *) Change the default configuration reader to deal with last line not
     being properly terminated.
     [Richard Levitte]

6980 6981 6982 6983 6984
  *) Change X509_NAME_cmp() so it applies the special rules on handling
     DN values that are of type PrintableString, as well as RDNs of type
     emailAddress where the value has the type ia5String.
     [stefank@valicert.com via Richard Levitte]

6985 6986 6987 6988 6989 6990 6991 6992 6993 6994
  *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
     the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
     doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
     the bitwise-OR of the two for use by the majority of applications
     wanting this behaviour, and update the docs. The documented
     behaviour and actual behaviour were inconsistent and had been
     changing anyway, so this is more a bug-fix than a behavioural
     change.
     [Geoff Thorpe, diagnosed by Nadav Har'El]

6995 6996 6997 6998
  *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
     (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
     [Bodo Moeller]

B
Bodo Möller 已提交
6999
  *) Fix initialization code race conditions in
B
Bodo Möller 已提交
7000 7001 7002 7003
        SSLv23_method(),  SSLv23_client_method(),   SSLv23_server_method(),
        SSLv2_method(),   SSLv2_client_method(),    SSLv2_server_method(),
        SSLv3_method(),   SSLv3_client_method(),    SSLv3_server_method(),
        TLSv1_method(),   TLSv1_client_method(),    TLSv1_server_method(),
B
Bodo Möller 已提交
7004 7005
        ssl2_get_cipher_by_char(),
        ssl3_get_cipher_by_char().
B
Bodo Möller 已提交
7006
     [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
B
Bodo Möller 已提交
7007

7008 7009 7010 7011 7012 7013
  *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
     the cached sessions are flushed, as the remove_cb() might use ex_data
     contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
     (see [openssl.org #212]).
     [Geoff Thorpe, Lutz Jaenicke]

D
 
Dr. Stephen Henson 已提交
7014 7015 7016 7017
  *) Fix typo in OBJ_txt2obj which incorrectly passed the content
     length, instead of the encoding length to d2i_ASN1_OBJECT.
     [Steve Henson]

B
Bodo Möller 已提交
7018
 Changes between 0.9.6f and 0.9.6g  [9 Aug 2002]
R
Richard Levitte 已提交
7019

B
Bodo Möller 已提交
7020 7021 7022
  *) [In 0.9.6g-engine release:]
     Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
     [Lynn Gazis <lgazis@rainbow.com>]
R
Richard Levitte 已提交
7023 7024

 Changes between 0.9.6e and 0.9.6f  [8 Aug 2002]
B
Bodo Möller 已提交
7025

7026 7027 7028 7029 7030 7031
  *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
     and get fix the header length calculation.
     [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
	Alon Kantor <alonk@checkpoint.com> (and others),
	Steve Henson]

B
Bodo Möller 已提交
7032 7033 7034 7035
  *) Use proper error handling instead of 'assertions' in buffer
     overflow checks added in 0.9.6e.  This prevents DoS (the
     assertions could call abort()).
     [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
7036

7037 7038 7039 7040 7041 7042 7043
 Changes between 0.9.6d and 0.9.6e  [30 Jul 2002]

  *) Add various sanity checks to asn1_get_length() to reject
     the ASN1 length bytes if they exceed sizeof(long), will appear
     negative or the content length exceeds the length of the
     supplied buffer.
     [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
B
Bodo Möller 已提交
7044

7045 7046 7047 7048 7049
  *) Fix cipher selection routines: ciphers without encryption had no flags
     for the cipher strength set and where therefore not handled correctly
     by the selection routines (PR #130).
     [Lutz Jaenicke]

B
Bodo Möller 已提交
7050 7051 7052
  *) Fix EVP_dsa_sha macro.
     [Nils Larsch]

7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065
  *) New option
          SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
     for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
     that was added in OpenSSL 0.9.6d.

     As the countermeasure turned out to be incompatible with some
     broken SSL implementations, the new option is part of SSL_OP_ALL.
     SSL_OP_ALL is usually employed when compatibility with weird SSL
     implementations is desired (e.g. '-bugs' option to 's_client' and
     's_server'), so the new option is automatically set in many
     applications.
     [Bodo Moeller]

7066 7067 7068 7069 7070 7071 7072 7073 7074 7075
  *) Changes in security patch:

     Changes marked "(CHATS)" were sponsored by the Defense Advanced
     Research Projects Agency (DARPA) and Air Force Research Laboratory,
     Air Force Materiel Command, USAF, under agreement number
     F30602-01-2-0537.

  *) Add various sanity checks to asn1_get_length() to reject
     the ASN1 length bytes if they exceed sizeof(long), will appear
     negative or the content length exceeds the length of the
M
Mark J. Cox 已提交
7076
     supplied buffer. (CVE-2002-0659)
7077 7078 7079 7080 7081 7082 7083
     [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]

  *) Assertions for various potential buffer overflows, not known to
     happen in practice.
     [Ben Laurie (CHATS)]

  *) Various temporary buffers to hold ASCII versions of integers were
M
Mark J. Cox 已提交
7084
     too small for 64 bit platforms. (CVE-2002-0655)
7085 7086 7087
     [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>

  *) Remote buffer overflow in SSL3 protocol - an attacker could
M
Mark J. Cox 已提交
7088
     supply an oversized session ID to a client. (CVE-2002-0656)
7089 7090 7091
     [Ben Laurie (CHATS)]

  *) Remote buffer overflow in SSL2 protocol - an attacker could
M
Mark J. Cox 已提交
7092
     supply an oversized client master key. (CVE-2002-0656)
7093 7094
     [Ben Laurie (CHATS)]

B
Bodo Möller 已提交
7095
 Changes between 0.9.6c and 0.9.6d  [9 May 2002]
7096

7097 7098 7099 7100
  *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
     encoded as NULL) with id-dsa-with-sha1.
     [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]

B
Bodo Möller 已提交
7101 7102 7103
  *) Check various X509_...() return values in apps/req.c.
     [Nils Larsch <nla@trustcenter.de>]

7104
  *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
B
Bodo Moeller 已提交
7105
     an end-of-file condition would erronously be flagged, when the CRLF
7106 7107 7108 7109 7110 7111
     was just at the end of a processed block. The bug was discovered when
     processing data through a buffering memory BIO handing the data to a
     BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
     <ptsekov@syntrex.com> and Nedelcho Stanev.
     [Lutz Jaenicke]

7112 7113 7114 7115 7116 7117 7118 7119 7120 7121 7122 7123 7124 7125 7126 7127
  *) Implement a countermeasure against a vulnerability recently found
     in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
     before application data chunks to avoid the use of known IVs
     with data potentially chosen by the attacker.
     [Bodo Moeller]

  *) Fix length checks in ssl3_get_client_hello().
     [Bodo Moeller]

  *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
     to prevent ssl3_read_internal() from incorrectly assuming that
     ssl3_read_bytes() found application data while handshake
     processing was enabled when in fact s->s3->in_read_app_data was
     merely automatically cleared during the initial handshake.
     [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]

7128 7129 7130 7131 7132 7133 7134 7135 7136 7137 7138 7139 7140 7141 7142 7143 7144 7145 7146 7147 7148 7149 7150 7151 7152 7153 7154 7155 7156 7157 7158 7159 7160 7161 7162 7163 7164 7165 7166 7167 7168 7169 7170 7171 7172 7173 7174 7175 7176 7177 7178 7179 7180 7181 7182 7183 7184
  *) Fix object definitions for Private and Enterprise: they were not
     recognized in their shortname (=lowercase) representation. Extend
     obj_dat.pl to issue an error when using undefined keywords instead
     of silently ignoring the problem (Svenning Sorensen
     <sss@sss.dnsalias.net>).
     [Lutz Jaenicke]

  *) Fix DH_generate_parameters() so that it works for 'non-standard'
     generators, i.e. generators other than 2 and 5.  (Previously, the
     code did not properly initialise the 'add' and 'rem' values to
     BN_generate_prime().)

     In the new general case, we do not insist that 'generator' is
     actually a primitive root: This requirement is rather pointless;
     a generator of the order-q subgroup is just as good, if not
     better.
     [Bodo Moeller]
 
  *) Map new X509 verification errors to alerts. Discovered and submitted by
     Tom Wu <tom@arcot.com>.
     [Lutz Jaenicke]

  *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
     returning non-zero before the data has been completely received
     when using non-blocking I/O.
     [Bodo Moeller; problem pointed out by John Hughes]

  *) Some of the ciphers missed the strength entry (SSL_LOW etc).
     [Ben Laurie, Lutz Jaenicke]

  *) Fix bug in SSL_clear(): bad sessions were not removed (found by
     Yoram Zahavi <YoramZ@gilian.com>).
     [Lutz Jaenicke]

  *) Add information about CygWin 1.3 and on, and preserve proper
     configuration for the versions before that.
     [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]

  *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
     check whether we deal with a copy of a session and do not delete from
     the cache in this case. Problem reported by "Izhar Shoshani Levi"
     <izhar@checkpoint.com>.
     [Lutz Jaenicke]

  *) Do not store session data into the internal session cache, if it
     is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
     flag is set). Proposed by Aslam <aslam@funk.com>.
     [Lutz Jaenicke]

  *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
     value is 0.
     [Richard Levitte]

  *) [In 0.9.6d-engine release:]
     Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
     [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]

7185 7186 7187
  *) Add the configuration target linux-s390x.
     [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]

7188 7189 7190 7191 7192 7193 7194 7195 7196 7197 7198 7199 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7223 7224 7225 7226 7227 7228 7229 7230 7231 7232 7233 7234 7235 7236 7237 7238 7239 7240 7241 7242 7243 7244 7245 7246 7247 7248 7249 7250 7251 7252 7253 7254 7255 7256 7257 7258 7259 7260 7261 7262 7263 7264 7265 7266 7267 7268 7269 7270 7271 7272 7273 7274 7275 7276 7277 7278 7279 7280 7281 7282 7283 7284 7285 7286 7287 7288 7289 7290 7291 7292 7293 7294 7295 7296 7297 7298 7299 7300 7301 7302 7303 7304 7305 7306 7307 7308 7309 7310 7311
  *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
     ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
     variable as an indication that a ClientHello message has been
     received.  As the flag value will be lost between multiple
     invocations of ssl3_accept when using non-blocking I/O, the
     function may not be aware that a handshake has actually taken
     place, thus preventing a new session from being added to the
     session cache.

     To avoid this problem, we now set s->new_session to 2 instead of
     using a local variable.
     [Lutz Jaenicke, Bodo Moeller]

  *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
     if the SSL_R_LENGTH_MISMATCH error is detected.
     [Geoff Thorpe, Bodo Moeller]

  *) New 'shared_ldflag' column in Configure platform table.
     [Richard Levitte]

  *) Fix EVP_CIPHER_mode macro.
     ["Dan S. Camper" <dan@bti.net>]

  *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
     type, we must throw them away by setting rr->length to 0.
     [D P Chang <dpc@qualys.com>]

 Changes between 0.9.6b and 0.9.6c  [21 dec 2001]

  *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
     <Dominikus.Scherkl@biodata.com>.  (The previous implementation
     worked incorrectly for those cases where  range = 10..._2  and
     3*range  is two bits longer than  range.)
     [Bodo Moeller]

  *) Only add signing time to PKCS7 structures if it is not already
     present.
     [Steve Henson]

  *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
     OBJ_ld_ce should be OBJ_id_ce.
     Also some ip-pda OIDs in crypto/objects/objects.txt were
     incorrect (cf. RFC 3039).
     [Matt Cooper, Frederic Giudicelli, Bodo Moeller]

  *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
     returns early because it has nothing to do.
     [Andy Schneider <andy.schneider@bjss.co.uk>]

  *) [In 0.9.6c-engine release:]
     Fix mutex callback return values in crypto/engine/hw_ncipher.c.
     [Andy Schneider <andy.schneider@bjss.co.uk>]

  *) [In 0.9.6c-engine release:]
     Add support for Cryptographic Appliance's keyserver technology.
     (Use engine 'keyclient')
     [Cryptographic Appliances and Geoff Thorpe]

  *) Add a configuration entry for OS/390 Unix.  The C compiler 'c89'
     is called via tools/c89.sh because arguments have to be
     rearranged (all '-L' options must appear before the first object
     modules).
     [Richard Shapiro <rshapiro@abinitio.com>]

  *) [In 0.9.6c-engine release:]
     Add support for Broadcom crypto accelerator cards, backported
     from 0.9.7.
     [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]

  *) [In 0.9.6c-engine release:]
     Add support for SureWare crypto accelerator cards from 
     Baltimore Technologies.  (Use engine 'sureware')
     [Baltimore Technologies and Mark Cox]

  *) [In 0.9.6c-engine release:]
     Add support for crypto accelerator cards from Accelerated
     Encryption Processing, www.aep.ie.  (Use engine 'aep')
     [AEP Inc. and Mark Cox]

  *) Add a configuration entry for gcc on UnixWare.
     [Gary Benson <gbenson@redhat.com>]

  *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
     messages are stored in a single piece (fixed-length part and
     variable-length part combined) and fix various bugs found on the way.
     [Bodo Moeller]

  *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
     instead.  BIO_gethostbyname() does not know what timeouts are
     appropriate, so entries would stay in cache even when they have
     become invalid.
     [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>

  *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
     faced with a pathologically small ClientHello fragment that does
     not contain client_version: Instead of aborting with an error,
     simply choose the highest available protocol version (i.e.,
     TLS 1.0 unless it is disabled).  In practice, ClientHello
     messages are never sent like this, but this change gives us
     strictly correct behaviour at least for TLS.
     [Bodo Moeller]

  *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
     never resets s->method to s->ctx->method when called from within
     one of the SSL handshake functions.
     [Bodo Moeller; problem pointed out by Niko Baric]

  *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
     (sent using the client's version number) if client_version is
     smaller than the protocol version in use.  Also change
     ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
     the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
     the client will at least see that alert.
     [Bodo Moeller]

  *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
     correctly.
     [Bodo Moeller]

  *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
     client receives HelloRequest while in a handshake.
     [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]

  *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
7312
     should end in 'break', not 'goto end' which circumvents various
7313 7314 7315 7316 7317 7318 7319 7320 7321 7322
     cleanups done in state SSL_ST_OK.   But session related stuff
     must be disabled for SSL_ST_OK in the case that we just sent a
     HelloRequest.

     Also avoid some overhead by not calling ssl_init_wbio_buffer()
     before just sending a HelloRequest.
     [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]

  *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
     reveal whether illegal block cipher padding was found or a MAC
B
Bodo Moeller 已提交
7323
     verification error occured.  (Neither SSLerr() codes nor alerts
7324 7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 7335 7336 7337 7338 7339 7340 7341 7342 7343 7344 7345
     are directly visible to potential attackers, but the information
     may leak via logfiles.)

     Similar changes are not required for the SSL 2.0 implementation
     because the number of padding bytes is sent in clear for SSL 2.0,
     and the extra bytes are just ignored.  However ssl/s2_pkt.c
     failed to verify that the purported number of padding bytes is in
     the legal range.
     [Bodo Moeller]

  *) Add OpenUNIX-8 support including shared libraries
     (Boyd Lynn Gerber <gerberb@zenez.com>).
     [Lutz Jaenicke]

  *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
     'wristwatch attack' using huge encoding parameters (cf.
     James H. Manger's CRYPTO 2001 paper).  Note that the
     RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
     encoding parameters and hence was not vulnerable.
     [Bodo Moeller]

  *) BN_sqr() bug fix.
7346
     [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
7347 7348 7349 7350 7351 7352 7353 7354 7355 7356 7357 7358 7359 7360 7361 7362 7363 7364 7365 7366 7367 7368 7369 7370 7371 7372 7373 7374 7375 7376 7377 7378 7379 7380 7381 7382 7383 7384 7385 7386 7387 7388 7389 7390 7391 7392 7393 7394 7395 7396 7397 7398 7399 7400 7401 7402 7403 7404 7405 7406 7407 7408 7409 7410 7411 7412 7413 7414 7415 7416 7417 7418 7419 7420 7421 7422 7423 7424 7425 7426 7427 7428 7429 7430 7431 7432 7433 7434 7435 7436 7437 7438 7439 7440 7441 7442 7443 7444 7445 7446 7447 7448 7449 7450 7451 7452 7453 7454 7455 7456 7457 7458 7459 7460 7461 7462 7463 7464 7465 7466 7467 7468 7469 7470 7471 7472 7473 7474 7475 7476 7477 7478 7479 7480 7481 7482 7483 7484 7485 7486 7487 7488 7489 7490 7491 7492 7493 7494 7495 7496 7497 7498 7499 7500 7501 7502 7503 7504 7505

  *) Rabin-Miller test analyses assume uniformly distributed witnesses,
     so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
     followed by modular reduction.
     [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]

  *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
     equivalent based on BN_pseudo_rand() instead of BN_rand().
     [Bodo Moeller]

  *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
     This function was broken, as the check for a new client hello message
     to handle SGC did not allow these large messages.
     (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
     [Lutz Jaenicke]

  *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
     [Lutz Jaenicke]

  *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
     for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
     [Lutz Jaenicke]

  *) Rework the configuration and shared library support for Tru64 Unix.
     The configuration part makes use of modern compiler features and
     still retains old compiler behavior for those that run older versions
     of the OS.  The shared library support part includes a variant that
     uses the RPATH feature, and is available through the special
     configuration target "alpha-cc-rpath", which will never be selected
     automatically.
     [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]

  *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
     with the same message size as in ssl3_get_certificate_request().
     Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
     messages might inadvertently be reject as too long.
     [Petr Lampa <lampa@fee.vutbr.cz>]

  *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
     [Andy Polyakov]

  *) Modified SSL library such that the verify_callback that has been set
     specificly for an SSL object with SSL_set_verify() is actually being
     used. Before the change, a verify_callback set with this function was
     ignored and the verify_callback() set in the SSL_CTX at the time of
     the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
     to allow the necessary settings.
     [Lutz Jaenicke]

  *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
     explicitly to NULL, as at least on Solaris 8 this seems not always to be
     done automatically (in contradiction to the requirements of the C
     standard). This made problems when used from OpenSSH.
     [Lutz Jaenicke]

  *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
     dh->length and always used

          BN_rand_range(priv_key, dh->p).

     BN_rand_range() is not necessary for Diffie-Hellman, and this
     specific range makes Diffie-Hellman unnecessarily inefficient if
     dh->length (recommended exponent length) is much smaller than the
     length of dh->p.  We could use BN_rand_range() if the order of
     the subgroup was stored in the DH structure, but we only have
     dh->length.

     So switch back to

          BN_rand(priv_key, l, ...)

     where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
     otherwise.
     [Bodo Moeller]

  *) In

          RSA_eay_public_encrypt
          RSA_eay_private_decrypt
          RSA_eay_private_encrypt (signing)
          RSA_eay_public_decrypt (signature verification)

     (default implementations for RSA_public_encrypt,
     RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
     always reject numbers >= n.
     [Bodo Moeller]

  *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
     to synchronize access to 'locking_thread'.  This is necessary on
     systems where access to 'locking_thread' (an 'unsigned long'
     variable) is not atomic.
     [Bodo Moeller]

  *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
     *before* setting the 'crypto_lock_rand' flag.  The previous code had
     a race condition if 0 is a valid thread ID.
     [Travis Vitek <vitek@roguewave.com>]

  *) Add support for shared libraries under Irix.
     [Albert Chin-A-Young <china@thewrittenword.com>]

  *) Add configuration option to build on Linux on both big-endian and
     little-endian MIPS.
     [Ralf Baechle <ralf@uni-koblenz.de>]

  *) Add the possibility to create shared libraries on HP-UX.
     [Richard Levitte]

 Changes between 0.9.6a and 0.9.6b  [9 Jul 2001]

  *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
     to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
     Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
     PRNG state recovery was possible based on the output of
     one PRNG request appropriately sized to gain knowledge on
     'md' followed by enough consecutive 1-byte PRNG requests
     to traverse all of 'state'.

     1. When updating 'md_local' (the current thread's copy of 'md')
        during PRNG output generation, hash all of the previous
        'md_local' value, not just the half used for PRNG output.

     2. Make the number of bytes from 'state' included into the hash
        independent from the number of PRNG bytes requested.

     The first measure alone would be sufficient to avoid
     Markku-Juhani's attack.  (Actually it had never occurred
     to me that the half of 'md_local' used for chaining was the
     half from which PRNG output bytes were taken -- I had always
     assumed that the secret half would be used.)  The second
     measure makes sure that additional data from 'state' is never
     mixed into 'md_local' in small portions; this heuristically
     further strengthens the PRNG.
     [Bodo Moeller]

  *) Fix crypto/bn/asm/mips3.s.
     [Andy Polyakov]

  *) When only the key is given to "enc", the IV is undefined. Print out
     an error message in this case.
     [Lutz Jaenicke]

  *) Handle special case when X509_NAME is empty in X509 printing routines.
     [Steve Henson]

  *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
     positive and less than q.
     [Bodo Moeller]

  *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
     used: it isn't thread safe and the add_lock_callback should handle
     that itself.
     [Paul Rose <Paul.Rose@bridge.com>]

  *) Verify that incoming data obeys the block size in
     ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
     [Bodo Moeller]

  *) Fix OAEP check.
7506
     [Ulf Möller, Bodo Möller]
7507 7508 7509 7510 7511 7512 7513 7514 7515 7516 7517 7518 7519 7520 7521 7522 7523 7524 7525 7526 7527 7528 7529 7530 7531 7532 7533 7534 7535 7536 7537 7538 7539 7540 7541 7542 7543 7544 7545 7546 7547 7548 7549 7550 7551 7552 7553 7554 7555 7556 7557 7558 7559 7560 7561 7562 7563 7564 7565 7566 7567 7568 7569 7570 7571 7572 7573 7574 7575 7576 7577 7578 7579 7580 7581 7582 7583 7584 7585 7586 7587 7588 7589 7590 7591 7592 7593 7594 7595 7596 7597 7598 7599 7600 7601 7602 7603 7604 7605 7606 7607 7608 7609 7610 7611 7612 7613 7614 7615 7616 7617 7618 7619 7620 7621 7622 7623 7624 7625 7626 7627 7628 7629 7630 7631 7632 7633 7634 7635 7636 7637 7638 7639 7640 7641 7642 7643 7644 7645 7646 7647 7648 7649 7650 7651 7652 7653 7654 7655 7656 7657 7658 7659 7660 7661 7662 7663 7664 7665 7666 7667 7668 7669 7670 7671 7672 7673 7674 7675 7676 7677 7678 7679 7680 7681 7682 7683 7684 7685 7686 7687 7688 7689 7690 7691 7692 7693 7694 7695 7696 7697 7698 7699 7700 7701 7702 7703 7704 7705 7706 7707 7708 7709 7710 7711 7712 7713 7714 7715 7716 7717 7718 7719 7720 7721 7722 7723 7724 7725 7726 7727 7728 7729 7730 7731 7732 7733 7734 7735 7736 7737 7738 7739 7740 7741 7742 7743 7744 7745 7746 7747 7748 7749 7750 7751 7752 7753 7754 7755 7756 7757 7758 7759 7760 7761 7762 7763 7764 7765 7766 7767

  *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
     RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
     when fixing the server behaviour for backwards-compatible 'client
     hello' messages.  (Note that the attack is impractical against
     SSL 3.0 and TLS 1.0 anyway because length and version checking
     means that the probability of guessing a valid ciphertext is
     around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
     paper.)

     Before 0.9.5, the countermeasure (hide the error by generating a
     random 'decryption result') did not work properly because
     ERR_clear_error() was missing, meaning that SSL_get_error() would
     detect the supposedly ignored error.

     Both problems are now fixed.
     [Bodo Moeller]

  *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
     (previously it was 1024).
     [Bodo Moeller]

  *) Fix for compatibility mode trust settings: ignore trust settings
     unless some valid trust or reject settings are present.
     [Steve Henson]

  *) Fix for blowfish EVP: its a variable length cipher.
     [Steve Henson]

  *) Fix various bugs related to DSA S/MIME verification. Handle missing
     parameters in DSA public key structures and return an error in the
     DSA routines if parameters are absent.
     [Steve Henson]

  *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
     in the current directory if neither $RANDFILE nor $HOME was set.
     RAND_file_name() in 0.9.6a returned NULL in this case.  This has
     caused some confusion to Windows users who haven't defined $HOME.
     Thus RAND_file_name() is changed again: e_os.h can define a
     DEFAULT_HOME, which will be used if $HOME is not set.
     For Windows, we use "C:"; on other platforms, we still require
     environment variables.

  *) Move 'if (!initialized) RAND_poll()' into regions protected by
     CRYPTO_LOCK_RAND.  This is not strictly necessary, but avoids
     having multiple threads call RAND_poll() concurrently.
     [Bodo Moeller]

  *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
     combination of a flag and a thread ID variable.
     Otherwise while one thread is in ssleay_rand_bytes (which sets the
     flag), *other* threads can enter ssleay_add_bytes without obeying
     the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
     that they do not hold after the first thread unsets add_do_not_lock).
     [Bodo Moeller]

  *) Change bctest again: '-x' expressions are not available in all
     versions of 'test'.
     [Bodo Moeller]

 Changes between 0.9.6 and 0.9.6a  [5 Apr 2001]

  *) Fix a couple of memory leaks in PKCS7_dataDecode()
     [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]

  *) Change Configure and Makefiles to provide EXE_EXT, which will contain
     the default extension for executables, if any.  Also, make the perl
     scripts that use symlink() to test if it really exists and use "cp"
     if it doesn't.  All this made OpenSSL compilable and installable in
     CygWin.
     [Richard Levitte]

  *) Fix for asn1_GetSequence() for indefinite length constructed data.
     If SEQUENCE is length is indefinite just set c->slen to the total
     amount of data available.
     [Steve Henson, reported by shige@FreeBSD.org]
     [This change does not apply to 0.9.7.]

  *) Change bctest to avoid here-documents inside command substitution
     (workaround for FreeBSD /bin/sh bug).
     For compatibility with Ultrix, avoid shell functions (introduced
     in the bctest version that searches along $PATH).
     [Bodo Moeller]

  *) Rename 'des_encrypt' to 'des_encrypt1'.  This avoids the clashes
     with des_encrypt() defined on some operating systems, like Solaris
     and UnixWare.
     [Richard Levitte]

  *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
     On the Importance of Eliminating Errors in Cryptographic
     Computations, J. Cryptology 14 (2001) 2, 101-119,
     http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
     [Ulf Moeller]
  
  *) MIPS assembler BIGNUM division bug fix. 
     [Andy Polyakov]

  *) Disabled incorrect Alpha assembler code.
     [Richard Levitte]

  *) Fix PKCS#7 decode routines so they correctly update the length
     after reading an EOC for the EXPLICIT tag.
     [Steve Henson]
     [This change does not apply to 0.9.7.]

  *) Fix bug in PKCS#12 key generation routines. This was triggered
     if a 3DES key was generated with a 0 initial byte. Include
     PKCS12_BROKEN_KEYGEN compilation option to retain the old
     (but broken) behaviour.
     [Steve Henson]

  *) Enhance bctest to search for a working bc along $PATH and print
     it when found.
     [Tim Rice <tim@multitalents.net> via Richard Levitte]

  *) Fix memory leaks in err.c: free err_data string if necessary;
     don't write to the wrong index in ERR_set_error_data.
     [Bodo Moeller]

  *) Implement ssl23_peek (analogous to ssl23_read), which previously
     did not exist.
     [Bodo Moeller]

  *) Replace rdtsc with _emit statements for VC++ version 5.
     [Jeremy Cooper <jeremy@baymoo.org>]

  *) Make it possible to reuse SSLv2 sessions.
     [Richard Levitte]

  *) In copy_email() check for >= 0 as a return value for
     X509_NAME_get_index_by_NID() since 0 is a valid index.
     [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]

  *) Avoid coredump with unsupported or invalid public keys by checking if
     X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
     PKCS7_verify() fails with non detached data.
     [Steve Henson]

  *) Don't use getenv in library functions when run as setuid/setgid.
     New function OPENSSL_issetugid().
     [Ulf Moeller]

  *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
     due to incorrect handling of multi-threading:

     1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().

     2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().

     3. Count how many times MemCheck_off() has been called so that
        nested use can be treated correctly.  This also avoids 
        inband-signalling in the previous code (which relied on the
        assumption that thread ID 0 is impossible).
     [Bodo Moeller]

  *) Add "-rand" option also to s_client and s_server.
     [Lutz Jaenicke]

  *) Fix CPU detection on Irix 6.x.
     [Kurt Hockenbury <khockenb@stevens-tech.edu> and
      "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]

  *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
     was empty.
     [Steve Henson]
     [This change does not apply to 0.9.7.]

  *) Use the cached encoding of an X509_NAME structure rather than
     copying it. This is apparently the reason for the libsafe "errors"
     but the code is actually correct.
     [Steve Henson]

  *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
     Bleichenbacher's DSA attack.
     Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
     to be set and top=0 forces the highest bit to be set; top=-1 is new
     and leaves the highest bit random.
     [Ulf Moeller, Bodo Moeller]

  *) In the NCONF_...-based implementations for CONF_... queries
     (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
     a temporary CONF structure with the data component set to NULL
     (which gives segmentation faults in lh_retrieve).
     Instead, use NULL for the CONF pointer in CONF_get_string and
     CONF_get_number (which may use environment variables) and directly
     return NULL from CONF_get_section.
     [Bodo Moeller]

  *) Fix potential buffer overrun for EBCDIC.
     [Ulf Moeller]

  *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
     keyUsage if basicConstraints absent for a CA.
     [Steve Henson]

  *) Make SMIME_write_PKCS7() write mail header values with a format that
     is more generally accepted (no spaces before the semicolon), since
     some programs can't parse those values properly otherwise.  Also make
     sure BIO's that break lines after each write do not create invalid
     headers.
     [Richard Levitte]

  *) Make the CRL encoding routines work with empty SEQUENCE OF. The
     macros previously used would not encode an empty SEQUENCE OF
     and break the signature.
     [Steve Henson]
     [This change does not apply to 0.9.7.]

  *) Zero the premaster secret after deriving the master secret in
     DH ciphersuites.
     [Steve Henson]

  *) Add some EVP_add_digest_alias registrations (as found in
     OpenSSL_add_all_digests()) to SSL_library_init()
     aka OpenSSL_add_ssl_algorithms().  This provides improved
     compatibility with peers using X.509 certificates
     with unconventional AlgorithmIdentifier OIDs.
     [Bodo Moeller]

  *) Fix for Irix with NO_ASM.
     ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]

  *) ./config script fixes.
     [Ulf Moeller, Richard Levitte]

  *) Fix 'openssl passwd -1'.
     [Bodo Moeller]

  *) Change PKCS12_key_gen_asc() so it can cope with non null
     terminated strings whose length is passed in the passlen
     parameter, for example from PEM callbacks. This was done
     by adding an extra length parameter to asc2uni().
     [Steve Henson, reported by <oddissey@samsung.co.kr>]

  *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
     call failed, free the DSA structure.
     [Bodo Moeller]

  *) Fix to uni2asc() to cope with zero length Unicode strings.
     These are present in some PKCS#12 files.
     [Steve Henson]

  *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
     Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
     when writing a 32767 byte record.
     [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]

  *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
     obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.

     (RSA objects have a reference count access to which is protected
     by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
     so they are meant to be shared between threads.)
     [Bodo Moeller, Geoff Thorpe; original patch submitted by
     "Reddie, Steven" <Steven.Reddie@ca.com>]

  *) Fix a deadlock in CRYPTO_mem_leaks().
     [Bodo Moeller]

  *) Use better test patterns in bntest.
7768
     [Ulf Möller]
7769 7770

  *) rand_win.c fix for Borland C.
7771
     [Ulf Möller]
7772 7773 7774 7775 7776 7777 7778 7779 7780 7781 7782 7783 7784 7785 7786 7787 7788 7789 7790 7791 7792 7793 7794 7795 7796 7797 7798 7799 7800 7801 7802 7803 7804 7805 7806 7807 7808 7809 7810 7811 7812 7813 7814 7815 7816 7817 7818 7819 7820 7821 7822 7823 7824 7825 7826 7827 7828 7829 7830 7831 7832 7833 7834 7835
 
  *) BN_rshift bugfix for n == 0.
     [Bodo Moeller]

  *) Add a 'bctest' script that checks for some known 'bc' bugs
     so that 'make test' does not abort just because 'bc' is broken.
     [Bodo Moeller]

  *) Store verify_result within SSL_SESSION also for client side to
     avoid potential security hole. (Re-used sessions on the client side
     always resulted in verify_result==X509_V_OK, not using the original
     result of the server certificate verification.)
     [Lutz Jaenicke]

  *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
     SSL3_RT_APPLICATION_DATA, return 0.
     Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
     [Bodo Moeller]

  *) Fix SSL_peek:
     Both ssl2_peek and ssl3_peek, which were totally broken in earlier
     releases, have been re-implemented by renaming the previous
     implementations of ssl2_read and ssl3_read to ssl2_read_internal
     and ssl3_read_internal, respectively, and adding 'peek' parameters
     to them.  The new ssl[23]_{read,peek} functions are calls to
     ssl[23]_read_internal with the 'peek' flag set appropriately.
     A 'peek' parameter has also been added to ssl3_read_bytes, which
     does the actual work for ssl3_read_internal.
     [Bodo Moeller]

  *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
     the method-specific "init()" handler. Also clean up ex_data after
     calling the method-specific "finish()" handler. Previously, this was
     happening the other way round.
     [Geoff Thorpe]

  *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
     The previous value, 12, was not always sufficient for BN_mod_exp().
     [Bodo Moeller]

  *) Make sure that shared libraries get the internal name engine with
     the full version number and not just 0.  This should mark the
     shared libraries as not backward compatible.  Of course, this should
     be changed again when we can guarantee backward binary compatibility.
     [Richard Levitte]

  *) Fix typo in get_cert_by_subject() in by_dir.c
     [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]

  *) Rework the system to generate shared libraries:

     - Make note of the expected extension for the shared libraries and
       if there is a need for symbolic links from for example libcrypto.so.0
       to libcrypto.so.0.9.7.  There is extended info in Configure for
       that.

     - Make as few rebuilds of the shared libraries as possible.

     - Still avoid linking the OpenSSL programs with the shared libraries.

     - When installing, install the shared libraries separately from the
       static ones.
     [Richard Levitte]

7836 7837 7838 7839 7840 7841 7842 7843
  *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.

     Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
     and not in SSL_clear because the latter is also used by the
     accept/connect functions; previously, the settings made by
     SSL_set_read_ahead would be lost during the handshake.
     [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]     

R
Richard Levitte 已提交
7844
  *) Correct util/mkdef.pl to be selective about disabled algorithms.
R
Rich Salz 已提交
7845
     Previously, it would create entries for disabled algorithms no
R
Richard Levitte 已提交
7846 7847
     matter what.
     [Richard Levitte]
7848

7849 7850 7851
  *) Added several new manual pages for SSL_* function.
     [Lutz Jaenicke]

7852
 Changes between 0.9.5a and 0.9.6  [24 Sep 2000]
D
Dr. Stephen Henson 已提交
7853

B
Bodo Möller 已提交
7854 7855 7856 7857 7858
  *) In ssl23_get_client_hello, generate an error message when faced
     with an initial SSL 3.0/TLS record that is too small to contain the
     first two bytes of the ClientHello message, i.e. client_version.
     (Note that this is a pathologic case that probably has never happened
     in real life.)  The previous approach was to use the version number
B
typo  
Bodo Möller 已提交
7859
     from the record header as a substitute; but our protocol choice
B
Bodo Möller 已提交
7860 7861 7862 7863
     should not depend on that one because it is not authenticated
     by the Finished messages.
     [Bodo Moeller]

U
Ulf Möller 已提交
7864 7865 7866
  *) More robust randomness gathering functions for Windows.
     [Jeffrey Altman <jaltman@columbia.edu>]

D
 
Dr. Stephen Henson 已提交
7867 7868 7869 7870 7871 7872 7873 7874
  *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
     not set then we don't setup the error code for issuer check errors
     to avoid possibly overwriting other errors which the callback does
     handle. If an application does set the flag then we assume it knows
     what it is doing and can handle the new informational codes
     appropriately.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
7875 7876 7877 7878 7879 7880 7881 7882 7883 7884 7885 7886
  *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
     a general "ANY" type, as such it should be able to decode anything
     including tagged types. However it didn't check the class so it would
     wrongly interpret tagged types in the same way as their universal
     counterpart and unknown types were just rejected. Changed so that the
     tagged and unknown types are handled in the same way as a SEQUENCE:
     that is the encoding is stored intact. There is also a new type
     "V_ASN1_OTHER" which is used when the class is not universal, in this
     case we have no idea what the actual type is so we just lump them all
     together.
     [Steve Henson]

7887 7888 7889 7890 7891 7892 7893 7894 7895 7896 7897 7898 7899 7900 7901 7902
  *) On VMS, stdout may very well lead to a file that is written to
     in a record-oriented fashion.  That means that every write() will
     write a separate record, which will be read separately by the
     programs trying to read from it.  This can be very confusing.

     The solution is to put a BIO filter in the way that will buffer
     text until a linefeed is reached, and then write everything a
     line at a time, so every record written will be an actual line,
     not chunks of lines and not (usually doesn't happen, but I've
     seen it once) several lines in one record.  BIO_f_linebuffer() is
     the answer.

     Currently, it's a VMS-only method, because that's where it has
     been tested well enough.
     [Richard Levitte]

7903
  *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7904
     it can return incorrect results.
7905 7906
     (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
     but it was in 0.9.6-beta[12].)
7907 7908
     [Bodo Moeller]

7909 7910 7911 7912 7913
  *) Disable the check for content being present when verifying detached
     signatures in pk7_smime.c. Some versions of Netscape (wrongly)
     include zero length content when signing messages.
     [Steve Henson]

7914 7915
  *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
     BIO_ctrl (for BIO pairs).
7916
     [Bodo Möller]
7917

7918 7919 7920
  *) Add DSO method for VMS.
     [Richard Levitte]

7921 7922
  *) Bug fix: Montgomery multiplication could produce results with the
     wrong sign.
7923
     [Ulf Möller]
7924

7925 7926 7927 7928 7929 7930 7931 7932
  *) Add RPM specification openssl.spec and modify it to build three
     packages.  The default package contains applications, application
     documentation and run-time libraries.  The devel package contains
     include files, static libraries and function documentation.  The
     doc package contains the contents of the doc directory.  The original
     openssl.spec was provided by Damien Miller <djm@mindrot.org>.
     [Richard Levitte]
     
7933 7934 7935
  *) Add a large number of documentation files for many SSL routines.
     [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]

7936 7937 7938
  *) Add a configuration entry for Sony News 4.
     [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]

U
Ulf Möller 已提交
7939 7940
  *) Don't set the two most significant bits to one when generating a
     random number < q in the DSA library.
7941
     [Ulf Möller]
U
Ulf Möller 已提交
7942

7943 7944 7945 7946 7947 7948 7949 7950 7951
  *) New SSL API mode 'SSL_MODE_AUTO_RETRY'.  This disables the default
     behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
     the underlying transport is blocking) if a handshake took place.
     (The default behaviour is needed by applications such as s_client
     and s_server that use select() to determine when to use SSL_read;
     but for applications that know in advance when to expect data, it
     just makes things more complicated.)
     [Bodo Moeller]

B
Ben Laurie 已提交
7952 7953 7954 7955
  *) Add RAND_egd_bytes(), which gives control over the number of bytes read
     from EGD.
     [Ben Laurie]

7956 7957 7958 7959
  *) Add a few more EBCDIC conditionals that make `req' and `x509'
     work better on such systems.
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]

7960 7961 7962 7963 7964
  *) Add two demo programs for PKCS12_parse() and PKCS12_create().
     Update PKCS12_parse() so it copies the friendlyName and the
     keyid to the certificates aux info.
     [Steve Henson]

7965 7966 7967 7968
  *) Fix bug in PKCS7_verify() which caused an infinite loop
     if there was more than one signature.
     [Sven Uszpelkat <su@celocom.de>]

7969
  *) Major change in util/mkdef.pl to include extra information
7970
     about each symbol, as well as presenting variables as well
7971 7972 7973 7974
     as functions.  This change means that there's n more need
     to rebuild the .num files when some algorithms are excluded.
     [Richard Levitte]

D
Dr. Stephen Henson 已提交
7975 7976 7977
  *) Allow the verify time to be set by an application,
     rather than always using the current time.
     [Steve Henson]
7978
  
D
Dr. Stephen Henson 已提交
7979 7980 7981 7982 7983 7984
  *) Phase 2 verify code reorganisation. The certificate
     verify code now looks up an issuer certificate by a
     number of criteria: subject name, authority key id
     and key usage. It also verifies self signed certificates
     by the same criteria. The main comparison function is
     X509_check_issued() which performs these checks.
7985
 
D
Dr. Stephen Henson 已提交
7986 7987
     Lot of changes were necessary in order to support this
     without completely rewriting the lookup code.
7988
 
D
Dr. Stephen Henson 已提交
7989
     Authority and subject key identifier are now cached.
7990
 
D
Dr. Stephen Henson 已提交
7991 7992 7993 7994
     The LHASH 'certs' is X509_STORE has now been replaced
     by a STACK_OF(X509_OBJECT). This is mainly because an
     LHASH can't store or retrieve multiple objects with
     the same hash value.
7995

D
Dr. Stephen Henson 已提交
7996 7997 7998 7999
     As a result various functions (which were all internal
     use only) have changed to handle the new X509_STORE
     structure. This will break anything that messed round
     with X509_STORE internally.
8000
 
D
Dr. Stephen Henson 已提交
8001 8002
     The functions X509_STORE_add_cert() now checks for an
     exact match, rather than just subject name.
8003
 
D
Dr. Stephen Henson 已提交
8004 8005 8006 8007 8008 8009 8010
     The X509_STORE API doesn't directly support the retrieval
     of multiple certificates matching a given criteria, however
     this can be worked round by performing a lookup first
     (which will fill the cache with candidate certificates)
     and then examining the cache for matches. This is probably
     the best we can do without throwing out X509_LOOKUP
     entirely (maybe later...).
8011
 
D
Dr. Stephen Henson 已提交
8012
     The X509_VERIFY_CTX structure has been enhanced considerably.
8013
 
D
Dr. Stephen Henson 已提交
8014 8015 8016 8017 8018 8019 8020 8021
     All certificate lookup operations now go via a get_issuer()
     callback. Although this currently uses an X509_STORE it
     can be replaced by custom lookups. This is a simple way
     to bypass the X509_STORE hackery necessary to make this
     work and makes it possible to use more efficient techniques
     in future. A very simple version which uses a simple
     STACK for its trusted certificate store is also provided
     using X509_STORE_CTX_trusted_stack().
8022
 
D
Dr. Stephen Henson 已提交
8023 8024
     The verify_cb() and verify() callbacks now have equivalents
     in the X509_STORE_CTX structure.
8025
 
D
Dr. Stephen Henson 已提交
8026 8027 8028
     X509_STORE_CTX also has a 'flags' field which can be used
     to customise the verify behaviour.
     [Steve Henson]
8029
 
8030 8031 8032 8033 8034 8035 8036 8037 8038 8039 8040
  *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 
     excludes S/MIME capabilities.
     [Steve Henson]

  *) When a certificate request is read in keep a copy of the
     original encoding of the signed data and use it when outputing
     again. Signatures then use the original encoding rather than
     a decoded, encoded version which may cause problems if the
     request is improperly encoded.
     [Steve Henson]

B
Bodo Möller 已提交
8041 8042 8043
  *) For consistency with other BIO_puts implementations, call
     buffer_write(b, ...) directly in buffer_puts instead of calling
     BIO_write(b, ...).
B
Bodo Möller 已提交
8044 8045

     In BIO_puts, increment b->num_write as in BIO_write.
B
Bodo Möller 已提交
8046 8047
     [Peter.Sylvester@EdelWeb.fr]

8048 8049 8050 8051 8052 8053 8054 8055 8056 8057
  *) Fix BN_mul_word for the case where the word is 0. (We have to use
     BN_zero, we may not return a BIGNUM with an array consisting of
     words set to zero.)
     [Bodo Moeller]

  *) Avoid calling abort() from within the library when problems are
     detected, except if preprocessor symbols have been defined
     (such as REF_CHECK, BN_DEBUG etc.).
     [Bodo Moeller]

8058 8059 8060 8061 8062
  *) New openssl application 'rsautl'. This utility can be
     used for low level RSA operations. DER public key
     BIO/fp routines also added.
     [Steve Henson]

B
Bodo Möller 已提交
8063 8064 8065
  *) New Configure entry and patches for compiling on QNX 4.
     [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]

B
Ben Laurie 已提交
8066 8067 8068 8069 8070
  *) A demo state-machine implementation was sponsored by
     Nuron (http://www.nuron.com/) and is now available in
     demos/state_machine.
     [Ben Laurie]

8071 8072 8073 8074
  *) New options added to the 'dgst' utility for signature
     generation and verification.
     [Steve Henson]

8075 8076 8077 8078 8079 8080
  *) Unrecognized PKCS#7 content types are now handled via a
     catch all ASN1_TYPE structure. This allows unsupported
     types to be stored as a "blob" and an application can
     encode and decode it manually.
     [Steve Henson]

8081
  *) Fix various signed/unsigned issues to make a_strex.c
D
 
Dr. Stephen Henson 已提交
8082 8083 8084 8085 8086 8087 8088 8089
     compile under VC++.
     [Oscar Jacobsson <oscar.jacobsson@celocom.com>]

  *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
     length if passed a buffer. ASN1_INTEGER_to_BN failed
     if passed a NULL BN and its argument was negative.
     [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]

D
Dr. Stephen Henson 已提交
8090 8091 8092 8093 8094 8095 8096
  *) Modification to PKCS#7 encoding routines to output definite
     length encoding. Since currently the whole structures are in
     memory there's not real point in using indefinite length 
     constructed encoding. However if OpenSSL is compiled with
     the flag PKCS7_INDEFINITE_ENCODING the old form is used.
     [Steve Henson]

8097 8098 8099
  *) Added BIO_vprintf() and BIO_vsnprintf().
     [Richard Levitte]

8100 8101 8102 8103 8104 8105 8106 8107 8108 8109 8110 8111 8112 8113 8114 8115 8116 8117 8118 8119 8120 8121 8122 8123
  *) Added more prefixes to parse for in the the strings written
     through a logging bio, to cover all the levels that are available
     through syslog.  The prefixes are now:

	PANIC, EMERG, EMR	=>	LOG_EMERG
	ALERT, ALR		=>	LOG_ALERT
	CRIT, CRI		=>	LOG_CRIT
	ERROR, ERR		=>	LOG_ERR
	WARNING, WARN, WAR	=>	LOG_WARNING
	NOTICE, NOTE, NOT	=>	LOG_NOTICE
	INFO, INF		=>	LOG_INFO
	DEBUG, DBG		=>	LOG_DEBUG

     and as before, if none of those prefixes are present at the
     beginning of the string, LOG_ERR is chosen.

     On Win32, the LOG_* levels are mapped according to this:

	LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR	=> EVENTLOG_ERROR_TYPE
	LOG_WARNING				=> EVENTLOG_WARNING_TYPE
	LOG_NOTICE, LOG_INFO, LOG_DEBUG		=> EVENTLOG_INFORMATION_TYPE

     [Richard Levitte]

8124 8125 8126 8127 8128 8129
  *) Made it possible to reconfigure with just the configuration
     argument "reconf" or "reconfigure".  The command line arguments
     are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
     and are retrieved from there when reconfiguring.
     [Richard Levitte]

8130
  *) MD4 implemented.
8131
     [Assar Westerlund <assar@sics.se>, Richard Levitte]
8132

8133 8134 8135
  *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
     [Richard Levitte]

8136 8137 8138 8139 8140 8141 8142 8143 8144 8145 8146 8147 8148
  *) The obj_dat.pl script was messing up the sorting of object
     names. The reason was that it compared the quoted version
     of strings as a result "OCSP" > "OCSP Signing" because
     " > SPACE. Changed script to store unquoted versions of
     names and add quotes on output. It was also omitting some
     names from the lookup table if they were given a default
     value (that is if SN is missing it is given the same
     value as LN and vice versa), these are now added on the
     grounds that if an object has a name we should be able to
     look it up. Finally added warning output when duplicate
     short or long names are found.
     [Steve Henson]

8149
  *) Changes needed for Tandem NSK.
U
Ulf Möller 已提交
8150
     [Scott Uroff <scott@xypro.com>]
8151

B
Bodo Möller 已提交
8152 8153 8154 8155 8156
  *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
     RSA_padding_check_SSLv23(), special padding was never detected
     and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
     version rollback attacks was not effective.

8157 8158 8159 8160 8161 8162
     In s23_clnt.c, don't use special rollback-attack detection padding
     (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
     client; similarly, in s23_srvr.c, don't do the rollback check if
     SSL 2.0 is the only protocol enabled in the server.
     [Bodo Moeller]

8163 8164 8165 8166 8167
  *) Make it possible to get hexdumps of unprintable data with 'openssl
     asn1parse'.  By implication, the functions ASN1_parse_dump() and
     BIO_dump_indent() are added.
     [Richard Levitte]

D
 
Dr. Stephen Henson 已提交
8168 8169 8170 8171 8172 8173 8174
  *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
     these print out strings and name structures based on various
     flags including RFC2253 support and proper handling of
     multibyte characters. Added options to the 'x509' utility 
     to allow the various flags to be set.
     [Steve Henson]

8175 8176 8177 8178 8179 8180 8181 8182 8183 8184 8185 8186 8187 8188 8189 8190 8191
  *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
     Also change the functions X509_cmp_current_time() and
     X509_gmtime_adj() work with an ASN1_TIME structure,
     this will enable certificates using GeneralizedTime in validity
     dates to be checked.
     [Steve Henson]

  *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
     negative public key encodings) on by default,
     NO_NEG_PUBKEY_BUG can be set to disable it.
     [Steve Henson]

  *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
     content octets. An i2c_ASN1_OBJECT is unnecessary because
     the encoding can be trivially obtained from the structure.
     [Steve Henson]

B
Bodo Möller 已提交
8192 8193 8194 8195
  *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
     not read locks (CRYPTO_r_[un]lock).
     [Bodo Moeller]

8196 8197 8198 8199 8200
  *) A first attempt at creating official support for shared
     libraries through configuration.  I've kept it so the
     default is static libraries only, and the OpenSSL programs
     are always statically linked for now, but there are
     preparations for dynamic linking in place.
8201
     This has been tested on Linux and Tru64.
8202 8203
     [Richard Levitte]

8204 8205 8206
  *) Randomness polling function for Win9x, as described in:
     Peter Gutmann, Software Generation of Practically Strong
     Random Numbers.
8207
     [Ulf Möller]
8208

D
 
Dr. Stephen Henson 已提交
8209 8210 8211 8212
  *) Fix so PRNG is seeded in req if using an already existing
     DSA key.
     [Steve Henson]

8213 8214 8215 8216 8217 8218 8219 8220 8221 8222
  *) New options to smime application. -inform and -outform
     allow alternative formats for the S/MIME message including
     PEM and DER. The -content option allows the content to be
     specified separately. This should allow things like Netscape
     form signing output easier to verify.
     [Steve Henson]

  *) Fix the ASN1 encoding of tags using the 'long form'.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
8223 8224 8225 8226 8227 8228 8229 8230 8231 8232 8233 8234
  *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
     STRING types. These convert content octets to and from the
     underlying type. The actual tag and length octets are
     already assumed to have been read in and checked. These
     are needed because all other string types have virtually
     identical handling apart from the tag. By having versions
     of the ASN1 functions that just operate on content octets
     IMPLICIT tagging can be handled properly. It also allows
     the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
     and ASN1_INTEGER are identical apart from the tag.
     [Steve Henson]

R
Richard Levitte 已提交
8235 8236 8237 8238 8239 8240 8241 8242 8243 8244 8245 8246 8247 8248 8249 8250 8251
  *) Change the handling of OID objects as follows:

     - New object identifiers are inserted in objects.txt, following
       the syntax given in objects.README.
     - objects.pl is used to process obj_mac.num and create a new
       obj_mac.h.
     - obj_dat.pl is used to create a new obj_dat.h, using the data in
       obj_mac.h.

     This is currently kind of a hack, and the perl code in objects.pl
     isn't very elegant, but it works as I intended.  The simplest way
     to check that it worked correctly is to look in obj_dat.h and
     check the array nid_objs and make sure the objects haven't moved
     around (this is important!).  Additions are OK, as well as
     consistent name changes. 
     [Richard Levitte]

8252 8253 8254
  *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
     [Bodo Moeller]

R
Richard Levitte 已提交
8255
  *) Addition of the command line parameter '-rand file' to 'openssl req'.
R
Richard Levitte 已提交
8256 8257 8258
     The given file adds to whatever has already been seeded into the
     random pool through the RANDFILE configuration file option or
     environment variable, or the default random state file.
R
Richard Levitte 已提交
8259 8260
     [Richard Levitte]

8261 8262 8263 8264 8265 8266
  *) mkstack.pl now sorts each macro group into lexical order.
     Previously the output order depended on the order the files
     appeared in the directory, resulting in needless rewriting
     of safestack.h .
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
8267 8268 8269 8270 8271 8272
  *) Patches to make OpenSSL compile under Win32 again. Mostly
     work arounds for the VC++ problem that it treats func() as
     func(void). Also stripped out the parts of mkdef.pl that
     added extra typesafe functions: these no longer exist.
     [Steve Henson]

8273 8274 8275 8276 8277 8278 8279 8280 8281
  *) Reorganisation of the stack code. The macros are now all 
     collected in safestack.h . Each macro is defined in terms of
     a "stack macro" of the form SKM_<name>(type, a, b). The 
     DEBUG_SAFESTACK is now handled in terms of function casts,
     this has the advantage of retaining type safety without the
     use of additional functions. If DEBUG_SAFESTACK is not defined
     then the non typesafe macros are used instead. Also modified the
     mkstack.pl script to handle the new form. Needs testing to see
     if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
D
 
Dr. Stephen Henson 已提交
8282 8283
     the default if no major problems. Similar behaviour for ASN1_SET_OF
     and PKCS12_STACK_OF.
8284 8285
     [Steve Henson]

8286 8287 8288
  *) When some versions of IIS use the 'NET' form of private key the
     key derivation algorithm is different. Normally MD5(password) is
     used as a 128 bit RC4 key. In the modified case
8289
     MD5(MD5(password) + "SGCKEYSALT")  is used instead. Added some
8290 8291 8292 8293 8294 8295 8296 8297
     new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
     as the old Netscape_RSA functions except they have an additional
     'sgckey' parameter which uses the modified algorithm. Also added
     an -sgckey command line option to the rsa utility. Thanks to 
     Adrian Peck <bertie@ncipher.com> for posting details of the modified
     algorithm to openssl-dev.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
8298 8299 8300 8301 8302
  *) The evp_local.h macros were using 'c.##kname' which resulted in
     invalid expansion on some systems (SCO 5.0.5 for example).
     Corrected to 'c.kname'.
     [Phillip Porch <root@theporch.com>]

8303 8304 8305 8306 8307 8308
  *) New X509_get1_email() and X509_REQ_get1_email() functions that return
     a STACK of email addresses from a certificate or request, these look
     in the subject name and the subject alternative name extensions and 
     omit any duplicate addresses.
     [Steve Henson]

8309 8310 8311 8312 8313 8314 8315 8316 8317 8318 8319
  *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
     This makes DSA verification about 2 % faster.
     [Bodo Moeller]

  *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
     (meaning that now 2^5 values will be precomputed, which is only 4 KB
     plus overhead for 1024 bit moduli).
     This makes exponentiations about 0.5 % faster for 1024 bit
     exponents (as measured by "openssl speed rsa2048").
     [Bodo Moeller]

B
Bodo Möller 已提交
8320 8321 8322 8323 8324 8325 8326 8327
  *) Rename memory handling macros to avoid conflicts with other
     software:
          Malloc         =>  OPENSSL_malloc
          Malloc_locked  =>  OPENSSL_malloc_locked
          Realloc        =>  OPENSSL_realloc
          Free           =>  OPENSSL_free
     [Richard Levitte]

8328 8329
  *) New function BN_mod_exp_mont_word for small bases (roughly 15%
     faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
B
Bodo Möller 已提交
8330 8331
     [Bodo Moeller]

U
Ulf Möller 已提交
8332 8333 8334
  *) CygWin32 support.
     [John Jarvie <jjarvie@newsguy.com>]

8335 8336 8337 8338 8339 8340 8341 8342
  *) The type-safe stack code has been rejigged. It is now only compiled
     in when OpenSSL is configured with the DEBUG_SAFESTACK option and
     by default all type-specific stack functions are "#define"d back to
     standard stack functions. This results in more streamlined output
     but retains the type-safety checking possibilities of the original
     approach.
     [Geoff Thorpe]

8343 8344 8345 8346 8347 8348 8349 8350 8351
  *) The STACK code has been cleaned up, and certain type declarations
     that didn't make a lot of sense have been brought in line. This has
     also involved a cleanup of sorts in safestack.h to more correctly
     map type-safe stack functions onto their plain stack counterparts.
     This work has also resulted in a variety of "const"ifications of
     lots of the code, especially "_cmp" operations which should normally
     be prototyped with "const" parameters anyway.
     [Geoff Thorpe]

B
Bodo Möller 已提交
8352 8353 8354 8355 8356 8357 8358 8359 8360 8361 8362 8363 8364
  *) When generating bytes for the first time in md_rand.c, 'stir the pool'
     by seeding with STATE_SIZE dummy bytes (with zero entropy count).
     (The PRNG state consists of two parts, the large pool 'state' and 'md',
     where all of 'md' is used each time the PRNG is used, but 'state'
     is used only indexed by a cyclic counter. As entropy may not be
     well distributed from the beginning, 'md' is important as a
     chaining variable. However, the output function chains only half
     of 'md', i.e. 80 bits.  ssleay_rand_add, on the other hand, chains
     all of 'md', and seeding with STATE_SIZE dummy bytes will result
     in all of 'state' being rewritten, with the new values depending
     on virtually all of 'md'.  This overcomes the 80 bit limitation.)
     [Bodo Moeller]

D
 
Dr. Stephen Henson 已提交
8365 8366 8367 8368 8369 8370 8371 8372 8373 8374 8375 8376 8377 8378 8379 8380
  *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
     the handshake is continued after ssl_verify_cert_chain();
     otherwise, if SSL_VERIFY_NONE is set, remaining error codes
     can lead to 'unexplainable' connection aborts later.
     [Bodo Moeller; problem tracked down by Lutz Jaenicke]

  *) Major EVP API cipher revision.
     Add hooks for extra EVP features. This allows various cipher
     parameters to be set in the EVP interface. Support added for variable
     key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
     setting of RC2 and RC5 parameters.

     Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
     ciphers.

     Remove lots of duplicated code from the EVP library. For example *every*
8381 8382 8383 8384
     cipher init() function handles the 'iv' in the same way according to the
     cipher mode. They also all do nothing if the 'key' parameter is NULL and
     for CFB and OFB modes they zero ctx->num.

D
 
Dr. Stephen Henson 已提交
8385 8386
     New functionality allows removal of S/MIME code RC2 hack.

D
Dr. Stephen Henson 已提交
8387 8388 8389
     Most of the routines have the same form and so can be declared in terms
     of macros.

8390 8391 8392 8393
     By shifting this to the top level EVP_CipherInit() it can be removed from
     all individual ciphers. If the cipher wants to handle IVs or keys
     differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
     flags.
D
 
Dr. Stephen Henson 已提交
8394 8395 8396 8397

     Change lots of functions like EVP_EncryptUpdate() to now return a
     value: although software versions of the algorithms cannot fail
     any installed hardware versions can.
D
 
Dr. Stephen Henson 已提交
8398 8399
     [Steve Henson]

8400 8401 8402 8403 8404 8405 8406 8407 8408 8409 8410 8411
  *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
     this option is set, tolerate broken clients that send the negotiated
     protocol version number instead of the requested protocol version
     number.
     [Bodo Moeller]

  *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
     i.e. non-zero for export ciphersuites, zero otherwise.
     Previous versions had this flag inverted, inconsistent with
     rsa_tmp_cb (..._TMP_RSA_CB).
     [Bodo Moeller; problem reported by Amit Chopra]

8412 8413 8414 8415
  *) Add missing DSA library text string. Work around for some IIS
     key files with invalid SEQUENCE encoding.
     [Steve Henson]

8416 8417 8418 8419
  *) Add a document (doc/standards.txt) that list all kinds of standards
     and so on that are implemented in OpenSSL.
     [Richard Levitte]

8420 8421 8422 8423 8424 8425
  *) Enhance c_rehash script. Old version would mishandle certificates
     with the same subject name hash and wouldn't handle CRLs at all.
     Added -fingerprint option to crl utility, to support new c_rehash
     features.
     [Steve Henson]

8426
  *) Eliminate non-ANSI declarations in crypto.h and stack.h.
8427
     [Ulf Möller]
8428

8429 8430 8431 8432 8433
  *) Fix for SSL server purpose checking. Server checking was
     rejecting certificates which had extended key usage present
     but no ssl client purpose.
     [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]

8434 8435 8436 8437 8438 8439 8440 8441 8442 8443 8444 8445 8446
  *) Make PKCS#12 code work with no password. The PKCS#12 spec
     is a little unclear about how a blank password is handled.
     Since the password in encoded as a BMPString with terminating
     double NULL a zero length password would end up as just the
     double NULL. However no password at all is different and is
     handled differently in the PKCS#12 key generation code. NS
     treats a blank password as zero length. MSIE treats it as no
     password on export: but it will try both on import. We now do
     the same: PKCS12_parse() tries zero length and no password if
     the password is set to "" or NULL (NULL is now a valid password:
     it wasn't before) as does the pkcs12 application.
     [Steve Henson]

B
Bodo Möller 已提交
8447 8448 8449 8450 8451
  *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
     perror when PEM_read_bio_X509_REQ fails, the error message must
     be obtained from the error queue.
     [Bodo Moeller]

8452 8453 8454 8455 8456 8457
  *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
     it in ERR_remove_state if appropriate, and change ERR_get_state
     accordingly to avoid race conditions (this is necessary because
     thread_hash is no longer constant once set).
     [Bodo Moeller]

U
 
Ulf Möller 已提交
8458
  *) Bugfix for linux-elf makefile.one.
8459
     [Ulf Möller]
U
 
Ulf Möller 已提交
8460

8461 8462 8463 8464 8465 8466 8467
  *) RSA_get_default_method() will now cause a default
     RSA_METHOD to be chosen if one doesn't exist already.
     Previously this was only set during a call to RSA_new()
     or RSA_new_method(NULL) meaning it was possible for
     RSA_get_default_method() to return NULL.
     [Geoff Thorpe]

8468 8469 8470 8471 8472 8473 8474
  *) Added native name translation to the existing DSO code
     that will convert (if the flag to do so is set) filenames
     that are sufficiently small and have no path information
     into a canonical native form. Eg. "blah" converted to
     "libblah.so" or "blah.dll" etc.
     [Geoff Thorpe]

B
Bodo Möller 已提交
8475 8476 8477 8478 8479 8480
  *) New function ERR_error_string_n(e, buf, len) which is like
     ERR_error_string(e, buf), but writes at most 'len' bytes
     including the 0 terminator.  For ERR_error_string_n, 'buf'
     may not be NULL.
     [Damien Miller <djm@mindrot.org>, Bodo Moeller]

8481 8482 8483 8484 8485 8486 8487 8488 8489 8490 8491 8492 8493
  *) CONF library reworked to become more general.  A new CONF
     configuration file reader "class" is implemented as well as a
     new functions (NCONF_*, for "New CONF") to handle it.  The now
     old CONF_* functions are still there, but are reimplemented to
     work in terms of the new functions.  Also, a set of functions
     to handle the internal storage of the configuration data is
     provided to make it easier to write new configuration file
     reader "classes" (I can definitely see something reading a
     configuration file in XML format, for example), called _CONF_*,
     or "the configuration storage API"...

     The new configuration file reading functions are:

8494 8495
        NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
        NCONF_get_section, NCONF_get_string, NCONF_get_numbre
8496

8497
        NCONF_default, NCONF_WIN32
8498

8499
        NCONF_dump_fp, NCONF_dump_bio
8500 8501 8502 8503 8504 8505 8506 8507 8508 8509 8510 8511 8512

     NCONF_default and NCONF_WIN32 are method (or "class") choosers,
     NCONF_new creates a new CONF object.  This works in the same way
     as other interfaces in OpenSSL, like the BIO interface.
     NCONF_dump_* dump the internal storage of the configuration file,
     which is useful for debugging.  All other functions take the same
     arguments as the old CONF_* functions wth the exception of the
     first that must be a `CONF *' instead of a `LHASH *'.

     To make it easer to use the new classes with the old CONF_* functions,
     the function CONF_set_default_method is provided.
     [Richard Levitte]

8513 8514 8515 8516 8517 8518
  *) Add '-tls1' option to 'openssl ciphers', which was already
     mentioned in the documentation but had not been implemented.
     (This option is not yet really useful because even the additional
     experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
     [Bodo Moeller]

8519 8520 8521 8522
  *) Initial DSO code added into libcrypto for letting OpenSSL (and
     OpenSSL-based applications) load shared libraries and bind to
     them in a portable way.
     [Geoff Thorpe, with contributions from Richard Levitte]
8523

8524 8525 8526
 Changes between 0.9.5 and 0.9.5a  [1 Apr 2000]

  *) Make sure _lrotl and _lrotr are only used with MSVC.
8527

8528 8529 8530
  *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
     (the default implementation of RAND_status).

8531 8532 8533 8534 8535
  *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
     to '-clrext' (= clear extensions), as intended and documented.
     [Bodo Moeller; inconsistency pointed out by Michael Attili
     <attili@amaxo.com>]

D
Dr. Stephen Henson 已提交
8536 8537 8538 8539
  *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
     was larger than the MD block size.      
     [Steve Henson, pointed out by Yost William <YostW@tce.com>]

8540 8541 8542 8543 8544 8545 8546
  *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
     fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
     using the passed key: if the passed key was a private key the result
     of X509_print(), for example, would be to print out all the private key
     components.
     [Steve Henson]

8547
  *) des_quad_cksum() byte order bug fix.
8548
     [Ulf Möller, using the problem description in krb4-0.9.7, where
8549 8550
      the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]

8551 8552 8553 8554
  *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
     discouraged.
     [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]

B
Bodo Möller 已提交
8555 8556
  *) For easily testing in shell scripts whether some command
     'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
B
Bodo Möller 已提交
8557
     returns with exit code 0 iff no command of the given name is available.
B
Bodo Möller 已提交
8558
     'no-XXX' is printed in this case, 'XXX' otherwise.  In both cases,
8559 8560 8561 8562 8563
     the output goes to stdout and nothing is printed to stderr.
     Additional arguments are always ignored.

     Since for each cipher there is a command of the same name,
     the 'no-cipher' compilation switches can be tested this way.
B
Bodo Möller 已提交
8564 8565 8566

     ('openssl no-XXX' is not able to detect pseudo-commands such
     as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
8567 8568
     [Bodo Moeller]

8569 8570 8571
  *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
     [Bodo Moeller]

8572 8573 8574 8575 8576
  *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
     is set; it will be thrown away anyway because each handshake creates
     its own key.
     ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
     to parameters -- in previous versions (since OpenSSL 0.9.3) the
8577
     'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
B
Bodo Moeller 已提交
8578
     you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
8579 8580
     [Bodo Moeller]

B
Bodo Möller 已提交
8581 8582 8583 8584 8585 8586
  *) New s_client option -ign_eof: EOF at stdin is ignored, and
     'Q' and 'R' lose their special meanings (quit/renegotiate).
     This is part of what -quiet does; unlike -quiet, -ign_eof
     does not suppress any output.
     [Richard Levitte]

B
Bodo Möller 已提交
8587
  *) Add compatibility options to the purpose and trust code. The
8588 8589 8590 8591 8592 8593 8594 8595 8596 8597 8598
     purpose X509_PURPOSE_ANY is "any purpose" which automatically
     accepts a certificate or CA, this was the previous behaviour,
     with all the associated security issues.

     X509_TRUST_COMPAT is the old trust behaviour: only and
     automatically trust self signed roots in certificate store. A
     new trust setting X509_TRUST_DEFAULT is used to specify that
     a purpose has no associated trust setting and it should instead
     use the value in the default purpose.
     [Steve Henson]

8599 8600 8601 8602
  *) Fix the PKCS#8 DSA private key code so it decodes keys again
     and fix a memory leak.
     [Steve Henson]

8603 8604
  *) In util/mkerr.pl (which implements 'make errors'), preserve
     reason strings from the previous version of the .c file, as
B
Bodo Moeller 已提交
8605
     the default to have only downcase letters (and digits) in
8606 8607 8608
     automatically generated reasons codes is not always appropriate.
     [Bodo Moeller]

8609 8610 8611 8612 8613 8614
  *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
     using strerror.  Previously, ERR_reason_error_string() returned
     library names as reason strings for SYSerr; but SYSerr is a special
     case where small numbers are errno values, not library numbers.
     [Bodo Moeller]

8615 8616 8617 8618 8619 8620 8621 8622 8623
  *) Add '-dsaparam' option to 'openssl dhparam' application.  This
     converts DSA parameters into DH parameters. (When creating parameters,
     DSA_generate_parameters is used.)
     [Bodo Moeller]

  *) Include 'length' (recommended exponent length) in C code generated
     by 'openssl dhparam -C'.
     [Bodo Moeller]

8624 8625 8626 8627 8628
  *) The second argument to set_label in perlasm was already being used
     so couldn't be used as a "file scope" flag. Moved to third argument
     which was free.
     [Steve Henson]

8629 8630 8631 8632
  *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
     instead of RAND_bytes for encryption IVs and salts.
     [Bodo Moeller]

8633 8634 8635 8636 8637
  *) Include RAND_status() into RAND_METHOD instead of implementing
     it only for md_rand.c  Otherwise replacing the PRNG by calling
     RAND_set_rand_method would be impossible.
     [Bodo Moeller]

8638 8639 8640 8641
  *) Don't let DSA_generate_key() enter an infinite loop if the random
     number generation fails.
     [Bodo Moeller]

B
Bodo Möller 已提交
8642 8643 8644
  *) New 'rand' application for creating pseudo-random output.
     [Bodo Moeller]

8645 8646 8647
  *) Added configuration support for Linux/IA64
     [Rolf Haberrecker <rolf@suse.de>]

U
Ulf Möller 已提交
8648
  *) Assembler module support for Mingw32.
8649
     [Ulf Möller]
U
Ulf Möller 已提交
8650

8651 8652 8653 8654 8655
  *) Shared library support for HPUX (in shlib/).
     [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]

  *) Shared library support for Solaris gcc.
     [Lutz Behnke <behnke@trustcenter.de>]
8656

R
Richard Levitte 已提交
8657
 Changes between 0.9.4 and 0.9.5  [28 Feb 2000]
U
Ulf Möller 已提交
8658

8659 8660 8661 8662
  *) PKCS7_encrypt() was adding text MIME headers twice because they
     were added manually and by SMIME_crlf_copy().
     [Steve Henson]

8663 8664 8665
  *) In bntest.c don't call BN_rand with zero bits argument.
     [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]

U
Ulf Möller 已提交
8666
  *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
8667
     case was implemented. This caused BN_div_recp() to fail occasionally.
8668
     [Ulf Möller]
U
Ulf Möller 已提交
8669

8670 8671 8672 8673 8674 8675 8676
  *) Add an optional second argument to the set_label() in the perl
     assembly language builder. If this argument exists and is set
     to 1 it signals that the assembler should use a symbol whose 
     scope is the entire file, not just the current function. This
     is needed with MASM which uses the format label:: for this scope.
     [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]

8677 8678 8679 8680 8681 8682
  *) Change the ASN1 types so they are typedefs by default. Before
     almost all types were #define'd to ASN1_STRING which was causing
     STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
     for example.
     [Steve Henson]

8683 8684 8685 8686 8687 8688 8689 8690
  *) Change names of new functions to the new get1/get0 naming
     convention: After 'get1', the caller owns a reference count
     and has to call ..._free; 'get0' returns a pointer to some
     data structure without incrementing reference counters.
     (Some of the existing 'get' functions increment a reference
     counter, some don't.)
     Similarly, 'set1' and 'add1' functions increase reference
     counters or duplicate objects.
8691 8692
     [Steve Henson]

8693 8694 8695 8696
  *) Allow for the possibility of temp RSA key generation failure:
     the code used to assume it always worked and crashed on failure.
     [Steve Henson]

U
Ulf Möller 已提交
8697
  *) Fix potential buffer overrun problem in BIO_printf().
8698
     [Ulf Möller, using public domain code by Patrick Powell; problem
U
Ulf Möller 已提交
8699 8700
      pointed out by David Sacerdote <das33@cornell.edu>]

U
Ulf Möller 已提交
8701 8702 8703 8704
  *) Support EGD <http://www.lothar.com/tech/crypto/>.  New functions
     RAND_egd() and RAND_status().  In the command line application,
     the EGD socket can be specified like a seed file using RANDFILE
     or -rand.
8705
     [Ulf Möller]
U
Ulf Möller 已提交
8706

D
 
Dr. Stephen Henson 已提交
8707 8708 8709 8710 8711 8712 8713 8714 8715 8716
  *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
     Some CAs (e.g. Verisign) distribute certificates in this form.
     [Steve Henson]

  *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
     list to exclude them. This means that no special compilation option
     is needed to use anonymous DH: it just needs to be included in the
     cipher list.
     [Steve Henson]

8717 8718 8719 8720 8721
  *) Change the EVP_MD_CTX_type macro so its meaning consistent with
     EVP_MD_type. The old functionality is available in a new macro called
     EVP_MD_md(). Change code that uses it and update docs.
     [Steve Henson]

8722 8723 8724 8725 8726 8727
  *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
     where the 'void *' argument is replaced by a function pointer argument.
     Previously 'void *' was abused to point to functions, which works on
     many platforms, but is not correct.  As these functions are usually
     called by macros defined in OpenSSL header files, most source code
     should work without changes.
U
Ulf Möller 已提交
8728
     [Richard Levitte]
8729 8730 8731 8732 8733 8734 8735 8736 8737

  *) <openssl/opensslconf.h> (which is created by Configure) now contains
     sections with information on -D... compiler switches used for
     compiling the library so that applications can see them.  To enable
     one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
     must be defined.  E.g.,
        #define OPENSSL_ALGORITHM_DEFINES
        #include <openssl/opensslconf.h>
     defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
8738
     [Richard Levitte, Ulf and Bodo Möller]
8739

8740 8741 8742 8743
  *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
     record layer.
     [Bodo Moeller]

8744 8745 8746 8747 8748
  *) Change the 'other' type in certificate aux info to a STACK_OF
     X509_ALGOR. Although not an AlgorithmIdentifier as such it has
     the required ASN1 format: arbitrary types determined by an OID.
     [Steve Henson]

8749 8750 8751 8752 8753 8754
  *) Add some PEM_write_X509_REQ_NEW() functions and a command line
     argument to 'req'. This is not because the function is newer or
     better than others it just uses the work 'NEW' in the certificate
     request header lines. Some software needs this.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
8755 8756 8757 8758 8759 8760 8761 8762
  *) Reorganise password command line arguments: now passwords can be
     obtained from various sources. Delete the PEM_cb function and make
     it the default behaviour: i.e. if the callback is NULL and the
     usrdata argument is not NULL interpret it as a null terminated pass
     phrase. If usrdata and the callback are NULL then the pass phrase
     is prompted for as usual.
     [Steve Henson]

8763 8764 8765 8766 8767
  *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
     the support is automatically enabled. The resulting binaries will
     autodetect the card and use it if present.
     [Ben Laurie and Compaq Inc.]

8768 8769 8770 8771 8772 8773
  *) Work around for Netscape hang bug. This sends certificate request
     and server done in one record. Since this is perfectly legal in the
     SSL/TLS protocol it isn't a "bug" option and is on by default. See
     the bugs/SSLv3 entry for more info.
     [Steve Henson]

8774 8775 8776
  *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
     [Andy Polyakov]

8777 8778 8779 8780
  *) Add -rand argument to smime and pkcs12 applications and read/write
     of seed file.
     [Steve Henson]

B
Bodo Möller 已提交
8781
  *) New 'passwd' tool for crypt(3) and apr1 password hashes.
B
Bodo Möller 已提交
8782 8783
     [Bodo Moeller]

8784 8785 8786
  *) Add command line password options to the remaining applications.
     [Steve Henson]

8787 8788
  *) Bug fix for BN_div_recp() for numerators with an even number of
     bits.
8789
     [Ulf Möller]
8790 8791

  *) More tests in bntest.c, and changed test_bn output.
8792
     [Ulf Möller]
8793

8794 8795 8796
  *) ./config recognizes MacOS X now.
     [Andy Polyakov]

8797 8798
  *) Bug fix for BN_div() when the first words of num and divsor are
     equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
8799
     [Ulf Möller]
8800

8801 8802 8803 8804
  *) Add support for various broken PKCS#8 formats, and command line
     options to produce them.
     [Steve Henson]

8805 8806
  *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
     get temporary BIGNUMs from a BN_CTX.
8807
     [Ulf Möller]
8808 8809 8810

  *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
     for p == 0.
8811
     [Ulf Möller]
8812

8813 8814 8815 8816
  *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
     include a #define from the old name to the new. The original intent
     was that statically linked binaries could for example just call
     SSLeay_add_all_ciphers() to just add ciphers to the table and not
8817
     link with digests. This never worked because SSLeay_add_all_digests()
8818 8819 8820 8821
     and SSLeay_add_all_ciphers() were in the same source file so calling
     one would link with the other. They are now in separate source files.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
8822 8823 8824
  *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
     [Steve Henson]

8825 8826 8827 8828 8829
  *) Use a less unusual form of the Miller-Rabin primality test (it used
     a binary algorithm for exponentiation integrated into the Miller-Rabin
     loop, our standard modexp algorithms are faster).
     [Bodo Moeller]

B
Bodo Möller 已提交
8830
  *) Support for the EBCDIC character set completed.
U
Ulf Möller 已提交
8831 8832
     [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]

U
Ulf Möller 已提交
8833 8834
  *) Source code cleanups: use const where appropriate, eliminate casts,
     use void * instead of char * in lhash.
8835
     [Ulf Möller] 
U
Ulf Möller 已提交
8836

8837 8838 8839 8840 8841 8842 8843 8844 8845 8846 8847 8848 8849 8850 8851 8852
  *) Bugfix: ssl3_send_server_key_exchange was not restartable
     (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
     this the server could overwrite ephemeral keys that the client
     has already seen).
     [Bodo Moeller]

  *) Turn DSA_is_prime into a macro that calls BN_is_prime,
     using 50 iterations of the Rabin-Miller test.

     DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
     iterations of the Rabin-Miller test as required by the appendix
     to FIPS PUB 186[-1]) instead of DSA_is_prime.
     As BN_is_prime_fasttest includes trial division, DSA parameter
     generation becomes much faster.

     This implies a change for the callback functions in DSA_is_prime
8853 8854 8855 8856 8857 8858 8859 8860 8861
     and DSA_generate_parameters: The callback function is called once
     for each positive witness in the Rabin-Miller test, not just
     occasionally in the inner loop; and the parameters to the
     callback function now provide an iteration count for the outer
     loop rather than for the current invocation of the inner loop.
     DSA_generate_parameters additionally can call the callback
     function with an 'iteration count' of -1, meaning that a
     candidate has passed the trial division test (when q is generated 
     from an application-provided seed, trial division is skipped).
8862 8863
     [Bodo Moeller]

8864
  *) New function BN_is_prime_fasttest that optionally does trial
8865 8866 8867
     division before starting the Rabin-Miller test and has
     an additional BN_CTX * argument (whereas BN_is_prime always
     has to allocate at least one BN_CTX).
8868 8869 8870
     'callback(1, -1, cb_arg)' is called when a number has passed the
     trial division stage.
     [Bodo Moeller]
8871

D
Dr. Stephen Henson 已提交
8872 8873 8874 8875
  *) Fix for bug in CRL encoding. The validity dates weren't being handled
     as ASN1_TIME.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
8876 8877 8878
  *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
     [Steve Henson]

U
Ulf Möller 已提交
8879
  *) New function BN_pseudo_rand().
8880
     [Ulf Möller]
8881

U
Ulf Möller 已提交
8882 8883 8884 8885
  *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
     bignum version of BN_from_montgomery() with the working code from
     SSLeay 0.9.0 (the word based version is faster anyway), and clean up
     the comments.
8886
     [Ulf Möller]
U
Ulf Möller 已提交
8887

B
Bodo Möller 已提交
8888 8889 8890 8891 8892
  *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
     made it impossible to use the same SSL_SESSION data structure in
     SSL2 clients in multiple threads.
     [Bodo Moeller]

B
Bodo Möller 已提交
8893 8894 8895
  *) The return value of RAND_load_file() no longer counts bytes obtained
     by stat().  RAND_load_file(..., -1) is new and uses the complete file
     to seed the PRNG (previously an explicit byte count was required).
8896
     [Ulf Möller, Bodo Möller]
B
Bodo Möller 已提交
8897

D
 
Dr. Stephen Henson 已提交
8898 8899 8900 8901
  *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
     used (char *) instead of (void *) and had casts all over the place.
     [Steve Henson]

8902
  *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8903
     [Ulf Möller]
8904

8905 8906 8907 8908
  *) Retain source code compatibility for BN_prime_checks macro:
     BN_is_prime(..., BN_prime_checks, ...) now uses
     BN_prime_checks_for_size to determine the appropriate number of
     Rabin-Miller iterations.
8909
     [Ulf Möller]
8910 8911 8912 8913

  *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
     DH_CHECK_P_NOT_SAFE_PRIME.
     (Check if this is true? OpenPGP calls them "strong".)
8914
     [Ulf Möller]
8915

D
 
Dr. Stephen Henson 已提交
8916 8917 8918 8919 8920
  *) Merge the functionality of "dh" and "gendh" programs into a new program
     "dhparam". The old programs are retained for now but will handle DH keys
     (instead of parameters) in future.
     [Steve Henson]

8921 8922 8923 8924 8925 8926 8927 8928 8929 8930 8931 8932 8933 8934 8935 8936 8937 8938 8939 8940 8941
  *) Make the ciphers, s_server and s_client programs check the return values
     when a new cipher list is set.
     [Steve Henson]

  *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
     ciphers. Before when the 56bit ciphers were enabled the sorting was
     wrong.

     The syntax for the cipher sorting has been extended to support sorting by
     cipher-strength (using the strength_bits hard coded in the tables).
     The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).

     Fix a bug in the cipher-command parser: when supplying a cipher command
     string with an "undefined" symbol (neither command nor alphanumeric
     [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
     an error is flagged.

     Due to the strength-sorting extension, the code of the
     ssl_create_cipher_list() function was completely rearranged. I hope that
     the readability was also increased :-)
     [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
D
 
Dr. Stephen Henson 已提交
8942

8943 8944 8945 8946 8947 8948 8949
  *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
     for the first serial number and places 2 in the serial number file. This
     avoids problems when the root CA is created with serial number zero and
     the first user certificate has the same issuer name and serial number
     as the root CA.
     [Steve Henson]

8950 8951 8952 8953
  *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
     the new code. Add documentation for this stuff.
     [Steve Henson]

8954 8955
  *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
     X509_*() to X509at_*() on the grounds that they don't handle X509
8956
     structures and behave in an analogous way to the X509v3 functions:
8957 8958 8959 8960 8961 8962 8963
     they shouldn't be called directly but wrapper functions should be used
     instead.

     So we also now have some wrapper functions that call the X509at functions
     when passed certificate requests. (TO DO: similar things can be done with
     PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
     things. Some of these need some d2i or i2d and print functionality
8964
     because they handle more complex structures.)
8965 8966
     [Steve Henson]

8967 8968 8969
  *) Add missing #ifndefs that caused missing symbols when building libssl
     as a shared library without RSA.  Use #ifndef NO_SSL2 instead of
     NO_RSA in ssl/s2*.c. 
8970
     [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8971

8972
  *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8973 8974
     has a return value which indicates the quality of the random data
     (1 = ok, 0 = not seeded).  Also an error is recorded on the thread's
8975
     error queue. New function RAND_pseudo_bytes() generates output that is
8976 8977 8978
     guaranteed to be unique but not unpredictable. RAND_add is like
     RAND_seed, but takes an extra argument for an entropy estimate
     (RAND_seed always assumes full entropy).
8979
     [Ulf Möller]
8980

8981 8982
  *) Do more iterations of Rabin-Miller probable prime test (specifically,
     3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8983
     instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8984
     in crypto/bn/bn_prime.c for the complete table).  This guarantees a
8985
     false-positive rate of at most 2^-80 for random input.
8986 8987
     [Bodo Moeller]

8988
  *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8989 8990
     [Bodo Moeller]

8991 8992
  *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
     in the 0.9.5 release), this returns the chain
8993 8994 8995 8996 8997 8998 8999 9000 9001
     from an X509_CTX structure with a dup of the stack and all
     the X509 reference counts upped: so the stack will exist
     after X509_CTX_cleanup() has been called. Modify pkcs12.c
     to use this.

     Also make SSL_SESSION_print() print out the verify return
     code.
     [Steve Henson]

9002 9003 9004 9005 9006 9007
  *) Add manpage for the pkcs12 command. Also change the default
     behaviour so MAC iteration counts are used unless the new
     -nomaciter option is used. This improves file security and
     only older versions of MSIE (4.0 for example) need it.
     [Steve Henson]

9008
  *) Honor the no-xxx Configure options when creating .DEF files.
9009
     [Ulf Möller]
9010

9011 9012 9013 9014 9015 9016 9017 9018 9019 9020 9021
  *) Add PKCS#10 attributes to field table: challengePassword, 
     unstructuredName and unstructuredAddress. These are taken from
     draft PKCS#9 v2.0 but are compatible with v1.2 provided no 
     international characters are used.

     More changes to X509_ATTRIBUTE code: allow the setting of types
     based on strings. Remove the 'loc' parameter when adding
     attributes because these will be a SET OF encoding which is sorted
     in ASN1 order.
     [Steve Henson]

9022 9023 9024 9025 9026 9027 9028 9029 9030
  *) Initial changes to the 'req' utility to allow request generation
     automation. This will allow an application to just generate a template
     file containing all the field values and have req construct the
     request.

     Initial support for X509_ATTRIBUTE handling. Stacks of these are
     used all over the place including certificate requests and PKCS#7
     structures. They are currently handled manually where necessary with
     some primitive wrappers for PKCS#7. The new functions behave in a
9031
     manner analogous to the X509 extension functions: they allow
9032 9033 9034 9035 9036
     attributes to be looked up by NID and added.

     Later something similar to the X509V3 code would be desirable to
     automatically handle the encoding, decoding and printing of the
     more complex types. The string types like challengePassword can
9037
     be handled by the string table functions.
9038 9039 9040 9041 9042 9043 9044 9045 9046

     Also modified the multi byte string table handling. Now there is
     a 'global mask' which masks out certain types. The table itself
     can use the flag STABLE_NO_MASK to ignore the mask setting: this
     is useful when for example there is only one permissible type
     (as in countryName) and using the mask might result in no valid
     types at all.
     [Steve Henson]

9047 9048 9049 9050 9051 9052 9053 9054 9055 9056
  *) Clean up 'Finished' handling, and add functions SSL_get_finished and
     SSL_get_peer_finished to allow applications to obtain the latest
     Finished messages sent to the peer or expected from the peer,
     respectively.  (SSL_get_peer_finished is usually the Finished message
     actually received from the peer, otherwise the protocol will be aborted.)

     As the Finished message are message digests of the complete handshake
     (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
     be used for external authentication procedures when the authentication
     provided by SSL/TLS is not desired or is not enough.
9057 9058
     [Bodo Moeller]

9059 9060
  *) Enhanced support for Alpha Linux is added. Now ./config checks if
     the host supports BWX extension and if Compaq C is present on the
9061
     $PATH. Just exploiting of the BWX extension results in 20-30%
9062 9063 9064 9065 9066
     performance kick for some algorithms, e.g. DES and RC4 to mention
     a couple. Compaq C in turn generates ~20% faster code for MD5 and
     SHA1.
     [Andy Polyakov]

9067 9068 9069 9070 9071 9072 9073 9074 9075 9076 9077
  *) Add support for MS "fast SGC". This is arguably a violation of the
     SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
     weak crypto and after checking the certificate is SGC a second one
     with strong crypto. MS SGC stops the first handshake after receiving
     the server certificate message and sends a second client hello. Since
     a server will typically do all the time consuming operations before
     expecting any further messages from the client (server key exchange
     is the most expensive) there is little difference between the two.

     To get OpenSSL to support MS SGC we have to permit a second client
     hello message after we have sent server done. In addition we have to
9078
     reset the MAC if we do get this second client hello.
9079 9080
     [Steve Henson]

9081 9082 9083 9084 9085 9086 9087 9088
  *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
     if a DER encoded private key is RSA or DSA traditional format. Changed
     d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
     format DER encoded private key. Newer code should use PKCS#8 format which
     has the key type encoded in the ASN1 structure. Added DER private key
     support to pkcs8 application.
     [Steve Henson]

9089 9090 9091 9092 9093 9094 9095 9096
  *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
     ciphersuites has been selected (as required by the SSL 3/TLS 1
     specifications).  Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
     is set, we interpret this as a request to violate the specification
     (the worst that can happen is a handshake failure, and 'correct'
     behaviour would result in a handshake failure anyway).
     [Bodo Moeller]

9097 9098 9099 9100 9101 9102 9103 9104
  *) In SSL_CTX_add_session, take into account that there might be multiple
     SSL_SESSION structures with the same session ID (e.g. when two threads
     concurrently obtain them from an external cache).
     The internal cache can handle only one SSL_SESSION with a given ID,
     so if there's a conflict, we now throw out the old one to achieve
     consistency.
     [Bodo Moeller]

9105 9106 9107 9108 9109 9110 9111
  *) Add OIDs for idea and blowfish in CBC mode. This will allow both
     to be used in PKCS#5 v2.0 and S/MIME.  Also add checking to
     some routines that use cipher OIDs: some ciphers do not have OIDs
     defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
     example.
     [Steve Henson]

9112 9113 9114 9115 9116 9117 9118 9119 9120
  *) Simplify the trust setting structure and code. Now we just have
     two sequences of OIDs for trusted and rejected settings. These will
     typically have values the same as the extended key usage extension
     and any application specific purposes.

     The trust checking code now has a default behaviour: it will just
     check for an object with the same NID as the passed id. Functions can
     be provided to override either the default behaviour or the behaviour
     for a given id. SSL client, server and email already have functions
9121
     in place for compatibility: they check the NID and also return "trusted"
9122 9123 9124
     if the certificate is self signed.
     [Steve Henson]

9125 9126 9127 9128
  *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
     traditional format into an EVP_PKEY structure.
     [Steve Henson]

9129 9130
  *) Add a password callback function PEM_cb() which either prompts for
     a password if usr_data is NULL or otherwise assumes it is a null
9131
     terminated password. Allow passwords to be passed on command line
9132 9133 9134
     environment or config files in a few more utilities.
     [Steve Henson]

9135 9136 9137 9138 9139 9140
  *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
     keys. Add some short names for PKCS#8 PBE algorithms and allow them
     to be specified on the command line for the pkcs8 and pkcs12 utilities.
     Update documentation.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
9141 9142
  *) Support for ASN1 "NULL" type. This could be handled before by using
     ASN1_TYPE but there wasn't any function that would try to read a NULL
9143
     and produce an error if it couldn't. For compatibility we also have
D
Dr. Stephen Henson 已提交
9144 9145 9146 9147
     ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
     don't allocate anything because they don't need to.
     [Steve Henson]

9148 9149 9150 9151
  *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
     for details.
     [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]

9152 9153 9154
  *) Rebuild of the memory allocation routines used by OpenSSL code and
     possibly others as well.  The purpose is to make an interface that
     provide hooks so anyone can build a separate set of allocation and
9155 9156 9157
     deallocation routines to be used by OpenSSL, for example memory
     pool implementations, or something else, which was previously hard
     since Malloc(), Realloc() and Free() were defined as macros having
R
Richard Levitte 已提交
9158 9159 9160 9161
     the values malloc, realloc and free, respectively (except for Win32
     compilations).  The same is provided for memory debugging code.
     OpenSSL already comes with functionality to find memory leaks, but
     this gives people a chance to debug other memory problems.
9162

9163 9164
     With these changes, a new set of functions and macros have appeared:

9165 9166 9167 9168 9169
       CRYPTO_set_mem_debug_functions()	        [F]
       CRYPTO_get_mem_debug_functions()         [F]
       CRYPTO_dbg_set_options()	                [F]
       CRYPTO_dbg_get_options()                 [F]
       CRYPTO_malloc_debug_init()               [M]
9170 9171 9172

     The memory debug functions are NULL by default, unless the library
     is compiled with CRYPTO_MDEBUG or friends is defined.  If someone
9173 9174 9175 9176 9177 9178 9179 9180
     wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
     gives the standard debugging functions that come with OpenSSL) or
     CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
     provided by the library user) must be used.  When the standard
     debugging functions are used, CRYPTO_dbg_set_options can be used to
     request additional information:
     CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
     the CRYPTO_MDEBUG_xxx macro when compiling the library.   
9181 9182 9183 9184 9185 9186 9187 9188 9189 9190 9191 9192 9193 9194

     Also, things like CRYPTO_set_mem_functions will always give the
     expected result (the new set of functions is used for allocation
     and deallocation) at all times, regardless of platform and compiler
     options.

     To finish it up, some functions that were never use in any other
     way than through macros have a new API and new semantic:

       CRYPTO_dbg_malloc()
       CRYPTO_dbg_realloc()
       CRYPTO_dbg_free()

     All macros of value have retained their old syntax.
9195
     [Richard Levitte and Bodo Moeller]
9196

D
Dr. Stephen Henson 已提交
9197 9198 9199 9200 9201 9202
  *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
     ordering of SMIMECapabilities wasn't in "strength order" and there
     was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
     algorithm.
     [Steve Henson]

9203 9204 9205 9206
  *) Some ASN1 types with illegal zero length encoding (INTEGER,
     ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
     [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]

9207 9208 9209 9210 9211 9212 9213 9214
  *) Merge in my S/MIME library for OpenSSL. This provides a simple
     S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
     functionality to handle multipart/signed properly) and a utility
     called 'smime' to call all this stuff. This is based on code I
     originally wrote for Celo who have kindly allowed it to be
     included in OpenSSL.
     [Steve Henson]

9215 9216 9217 9218 9219 9220 9221 9222
  *) Add variants des_set_key_checked and des_set_key_unchecked of
     des_set_key (aka des_key_sched).  Global variable des_check_key
     decides which of these is called by des_set_key; this way
     des_check_key behaves as it always did, but applications and
     the library itself, which was buggy for des_check_key == 1,
     have a cleaner way to pick the version they need.
     [Bodo Moeller]

D
Dr. Stephen Henson 已提交
9223 9224 9225 9226
  *) New function PKCS12_newpass() which changes the password of a
     PKCS12 structure.
     [Steve Henson]

9227 9228 9229 9230 9231 9232 9233 9234 9235 9236 9237 9238
  *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
     dynamic mix. In both cases the ids can be used as an index into the
     table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
     functions so they accept a list of the field values and the
     application doesn't need to directly manipulate the X509_TRUST
     structure.
     [Steve Henson]

  *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
     need initialising.
     [Steve Henson]

9239 9240 9241 9242 9243 9244 9245 9246 9247 9248 9249 9250 9251 9252 9253 9254 9255 9256 9257 9258
  *) Modify the way the V3 extension code looks up extensions. This now
     works in a similar way to the object code: we have some "standard"
     extensions in a static table which is searched with OBJ_bsearch()
     and the application can add dynamic ones if needed. The file
     crypto/x509v3/ext_dat.h now has the info: this file needs to be
     updated whenever a new extension is added to the core code and kept
     in ext_nid order. There is a simple program 'tabtest.c' which checks
     this. New extensions are not added too often so this file can readily
     be maintained manually.

     There are two big advantages in doing things this way. The extensions
     can be looked up immediately and no longer need to be "added" using
     X509V3_add_standard_extensions(): this function now does nothing.
     [Side note: I get *lots* of email saying the extension code doesn't
      work because people forget to call this function]
     Also no dynamic allocation is done unless new extensions are added:
     so if we don't add custom extensions there is no need to call
     X509V3_EXT_cleanup().
     [Steve Henson]

9259 9260 9261 9262 9263 9264
  *) Modify enc utility's salting as follows: make salting the default. Add a
     magic header, so unsalted files fail gracefully instead of just decrypting
     to garbage. This is because not salting is a big security hole, so people
     should be discouraged from doing it.
     [Ben Laurie]

9265 9266 9267 9268 9269 9270 9271 9272
  *) Fixes and enhancements to the 'x509' utility. It allowed a message
     digest to be passed on the command line but it only used this
     parameter when signing a certificate. Modified so all relevant
     operations are affected by the digest parameter including the
     -fingerprint and -x509toreq options. Also -x509toreq choked if a
     DSA key was used because it didn't fix the digest.
     [Steve Henson]

9273 9274 9275 9276 9277
  *) Initial certificate chain verify code. Currently tests the untrusted
     certificates for consistency with the verify purpose (which is set
     when the X509_STORE_CTX structure is set up) and checks the pathlength.

     There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
9278 9279
     this is because it will reject chains with invalid extensions whereas
     every previous version of OpenSSL and SSLeay made no checks at all.
9280 9281 9282 9283 9284 9285 9286

     Trust code: checks the root CA for the relevant trust settings. Trust
     settings have an initial value consistent with the verify purpose: e.g.
     if the verify purpose is for SSL client use it expects the CA to be
     trusted for SSL client use. However the default value can be changed to
     permit custom trust settings: one example of this would be to only trust
     certificates from a specific "secure" set of CAs.
9287 9288 9289 9290

     Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
     which should be used for version portability: especially since the
     verify structure is likely to change more often now.
9291

9292 9293 9294 9295
     SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
     to set them. If not set then assume SSL clients will verify SSL servers
     and vice versa.

9296 9297 9298 9299
     Two new options to the verify program: -untrusted allows a set of
     untrusted certificates to be passed in and -purpose which sets the
     intended purpose of the certificate. If a purpose is set then the
     new chain verify code is used to check extension consistency.
9300 9301 9302
     [Steve Henson]

  *) Support for the authority information access extension.
9303 9304
     [Steve Henson]

9305 9306 9307 9308 9309
  *) Modify RSA and DSA PEM read routines to transparently handle
     PKCS#8 format private keys. New *_PUBKEY_* functions that handle
     public keys in a format compatible with certificate
     SubjectPublicKeyInfo structures. Unfortunately there were already
     functions called *_PublicKey_* which used various odd formats so
9310
     these are retained for compatibility: however the DSA variants were
9311 9312 9313 9314 9315 9316 9317 9318 9319 9320
     never in a public release so they have been deleted. Changed dsa/rsa
     utilities to handle the new format: note no releases ever handled public
     keys so we should be OK.

     The primary motivation for this change is to avoid the same fiasco
     that dogs private keys: there are several incompatible private key
     formats some of which are standard and some OpenSSL specific and
     require various evil hacks to allow partial transparent handling and
     even then it doesn't work with DER formats. Given the option anything
     other than PKCS#8 should be dumped: but the other formats have to
9321
     stay in the name of compatibility.
9322 9323 9324 9325 9326 9327

     With public keys and the benefit of hindsight one standard format 
     is used which works with EVP_PKEY, RSA or DSA structures: though
     it clearly returns an error if you try to read the wrong kind of key.

     Added a -pubkey option to the 'x509' utility to output the public key.
9328 9329 9330 9331 9332 9333
     Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
     (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
     EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
     that do the same as the EVP_PKEY_assign_*() except they up the
     reference count of the added key (they don't "swallow" the
     supplied key).
9334 9335 9336 9337 9338 9339 9340 9341 9342 9343 9344 9345 9346 9347 9348 9349 9350
     [Steve Henson]

  *) Fixes to crypto/x509/by_file.c the code to read in certificates and
     CRLs would fail if the file contained no certificates or no CRLs:
     added a new function to read in both types and return the number
     read: this means that if none are read it will be an error. The
     DER versions of the certificate and CRL reader would always fail
     because it isn't possible to mix certificates and CRLs in DER format
     without choking one or the other routine. Changed this to just read
     a certificate: this is the best we can do. Also modified the code
     in apps/verify.c to take notice of return codes: it was previously
     attempting to read in certificates from NULL pointers and ignoring
     any errors: this is one reason why the cert and CRL reader seemed
     to work. It doesn't check return codes from the default certificate
     routines: these may well fail if the certificates aren't installed.
     [Steve Henson]

9351 9352 9353
  *) Code to support otherName option in GeneralName.
     [Steve Henson]

9354 9355 9356 9357 9358 9359 9360 9361 9362 9363 9364 9365 9366
  *) First update to verify code. Change the verify utility
     so it warns if it is passed a self signed certificate:
     for consistency with the normal behaviour. X509_verify
     has been modified to it will now verify a self signed
     certificate if *exactly* the same certificate appears
     in the store: it was previously impossible to trust a
     single self signed certificate. This means that:
     openssl verify ss.pem
     now gives a warning about a self signed certificate but
     openssl verify -CAfile ss.pem ss.pem
     is OK.
     [Steve Henson]

9367 9368 9369 9370 9371 9372 9373 9374 9375 9376 9377
  *) For servers, store verify_result in SSL_SESSION data structure
     (and add it to external session representation).
     This is needed when client certificate verifications fails,
     but an application-provided verification callback (set by
     SSL_CTX_set_cert_verify_callback) allows accepting the session
     anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
     but returns 1): When the session is reused, we have to set
     ssl->verify_result to the appropriate error code to avoid
     security holes.
     [Bodo Moeller, problem pointed out by Lutz Jaenicke]

9378 9379 9380
  *) Fix a bug in the new PKCS#7 code: it didn't consider the
     case in PKCS7_dataInit() where the signed PKCS7 structure
     didn't contain any existing data because it was being created.
9381
     [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
9382

9383 9384 9385 9386 9387
  *) Add a salt to the key derivation routines in enc.c. This
     forms the first 8 bytes of the encrypted file. Also add a
     -S option to allow a salt to be input on the command line.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
9388 9389 9390 9391 9392 9393
  *) New function X509_cmp(). Oddly enough there wasn't a function
     to compare two certificates. We do this by working out the SHA1
     hash and comparing that. X509_cmp() will be needed by the trust
     code.
     [Steve Henson]

B
Bodo Möller 已提交
9394 9395
  *) SSL_get1_session() is like SSL_get_session(), but increments
     the reference count in the SSL_SESSION returned.
9396 9397
     [Geoff Thorpe <geoff@eu.c2.net>]

9398 9399 9400 9401 9402
  *) Fix for 'req': it was adding a null to request attributes.
     Also change the X509_LOOKUP and X509_INFO code to handle
     certificate auxiliary information.
     [Steve Henson]

9403 9404 9405 9406
  *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
     the 'enc' command.
     [Steve Henson]

9407 9408
  *) Add the possibility to add extra information to the memory leak
     detecting output, to form tracebacks, showing from where each
9409 9410 9411 9412 9413
     allocation was originated: CRYPTO_push_info("constant string") adds
     the string plus current file name and line number to a per-thread
     stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
     is like calling CYRPTO_pop_info() until the stack is empty.
     Also updated memory leak detection code to be multi-thread-safe.
9414 9415
     [Richard Levitte]

9416
  *) Add options -text and -noout to pkcs7 utility and delete the
D
 
Dr. Stephen Henson 已提交
9417 9418 9419
     encryption options which never did anything. Update docs.
     [Steve Henson]

9420 9421 9422 9423 9424 9425
  *) Add options to some of the utilities to allow the pass phrase
     to be included on either the command line (not recommended on
     OSes like Unix) or read from the environment. Update the
     manpages and fix a few bugs.
     [Steve Henson]

9426 9427 9428
  *) Add a few manpages for some of the openssl commands.
     [Steve Henson]

9429 9430 9431 9432
  *) Fix the -revoke option in ca. It was freeing up memory twice,
     leaking and not finding already revoked certificates.
     [Steve Henson]

9433 9434 9435 9436 9437
  *) Extensive changes to support certificate auxiliary information.
     This involves the use of X509_CERT_AUX structure and X509_AUX
     functions. An X509_AUX function such as PEM_read_X509_AUX()
     can still read in a certificate file in the usual way but it
     will also read in any additional "auxiliary information". By
9438
     doing things this way a fair degree of compatibility can be
9439 9440 9441 9442 9443 9444 9445 9446 9447 9448
     retained: existing certificates can have this information added
     using the new 'x509' options. 

     Current auxiliary information includes an "alias" and some trust
     settings. The trust settings will ultimately be used in enhanced
     certificate chain verification routines: currently a certificate
     can only be trusted if it is self signed and then it is trusted
     for all purposes.
     [Steve Henson]

9449 9450 9451 9452 9453
  *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
     The problem was that one of the replacement routines had not been working
     since SSLeay releases.  For now the offending routine has been replaced
     with non-optimised assembler.  Even so, this now gives around 95%
     performance improvement for 1024 bit RSA signs.
9454 9455
     [Mark Cox]

9456 9457 9458 9459 9460
  *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 
     handling. Most clients have the effective key size in bits equal to
     the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
     A few however don't do this and instead use the size of the decrypted key
     to determine the RC2 key length and the AlgorithmIdentifier to determine
9461
     the effective key length. In this case the effective key length can still
9462 9463 9464 9465 9466 9467
     be 40 bits but the key length can be 168 bits for example. This is fixed
     by manually forcing an RC2 key into the EVP_PKEY structure because the
     EVP code can't currently handle unusual RC2 key sizes: it always assumes
     the key length and effective key length are equal.
     [Steve Henson]

9468 9469 9470 9471 9472 9473 9474 9475 9476 9477 9478 9479 9480 9481 9482 9483 9484 9485
  *) Add a bunch of functions that should simplify the creation of 
     X509_NAME structures. Now you should be able to do:
     X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
     and have it automatically work out the correct field type and fill in
     the structures. The more adventurous can try:
     X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
     and it will (hopefully) work out the correct multibyte encoding.
     [Steve Henson]

  *) Change the 'req' utility to use the new field handling and multibyte
     copy routines. Before the DN field creation was handled in an ad hoc
     way in req, ca, and x509 which was rather broken and didn't support
     BMPStrings or UTF8Strings. Since some software doesn't implement
     BMPStrings or UTF8Strings yet, they can be enabled using the config file
     using the dirstring_type option. See the new comment in the default
     openssl.cnf for more info.
     [Steve Henson]

B
Bodo Möller 已提交
9486
  *) Make crypto/rand/md_rand.c more robust:
9487
     - Assure unique random numbers after fork().
B
Bodo Möller 已提交
9488 9489 9490 9491 9492 9493 9494 9495
     - Make sure that concurrent threads access the global counter and
       md serializably so that we never lose entropy in them
       or use exactly the same state in multiple threads.
       Access to the large state is not always serializable because
       the additional locking could be a performance killer, and
       md should be large enough anyway.
     [Bodo Moeller]

9496 9497 9498 9499 9500
  *) New file apps/app_rand.c with commonly needed functionality
     for handling the random seed file.

     Use the random seed file in some applications that previously did not:
          ca,
9501
          dsaparam -genkey (which also ignored its '-rand' option), 
9502 9503 9504 9505 9506
          s_client,
          s_server,
          x509 (when signing).
     Except on systems with /dev/urandom, it is crucial to have a random
     seed file at least for key creation, DSA signing, and for DH exchanges;
B
Bodo Möller 已提交
9507
     for RSA signatures we could do without one.
9508 9509

     gendh and gendsa (unlike genrsa) used to read only the first byte
9510
     of each file listed in the '-rand' option.  The function as previously
9511
     found in genrsa is now in app_rand.c and is used by all programs
9512
     that support '-rand'.
9513 9514 9515 9516 9517 9518 9519 9520 9521 9522
     [Bodo Moeller]

  *) In RAND_write_file, use mode 0600 for creating files;
     don't just chmod when it may be too late.
     [Bodo Moeller]

  *) Report an error from X509_STORE_load_locations
     when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
     [Bill Perry]

9523 9524 9525 9526 9527 9528 9529
  *) New function ASN1_mbstring_copy() this copies a string in either
     ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
     into an ASN1_STRING type. A mask of permissible types is passed
     and it chooses the "minimal" type to use or an error if not type
     is suitable.
     [Steve Henson]

9530 9531 9532 9533 9534 9535
  *) Add function equivalents to the various macros in asn1.h. The old
     macros are retained with an M_ prefix. Code inside the library can
     use the M_ macros. External code (including the openssl utility)
     should *NOT* in order to be "shared library friendly".
     [Steve Henson]

9536 9537 9538 9539 9540 9541 9542 9543
  *) Add various functions that can check a certificate's extensions
     to see if it usable for various purposes such as SSL client,
     server or S/MIME and CAs of these types. This is currently 
     VERY EXPERIMENTAL but will ultimately be used for certificate chain
     verification. Also added a -purpose flag to x509 utility to
     print out all the purposes.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
9544 9545 9546 9547
  *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
     functions.
     [Steve Henson]

9548 9549 9550 9551 9552 9553
  *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
     for, obtain and decode and extension and obtain its critical flag.
     This allows all the necessary extension code to be handled in a
     single function call.
     [Steve Henson]

9554 9555 9556 9557
  *) RC4 tune-up featuring 30-40% performance improvement on most RISC
     platforms. See crypto/rc4/rc4_enc.c for further details.
     [Andy Polyakov]

9558 9559 9560 9561 9562
  *) New -noout option to asn1parse. This causes no output to be produced
     its main use is when combined with -strparse and -out to extract data
     from a file (which may not be in ASN.1 format).
     [Steve Henson]

9563 9564 9565 9566
  *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
     when producing the local key id.
     [Richard Levitte <levitte@stacken.kth.se>]

9567 9568 9569 9570 9571 9572
  *) New option -dhparam in s_server. This allows a DH parameter file to be
     stated explicitly. If it is not stated then it tries the first server
     certificate file. The previous behaviour hard coded the filename
     "server.pem".
     [Steve Henson]

9573 9574 9575 9576 9577 9578
  *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
     a public key to be input or output. For example:
     openssl rsa -in key.pem -pubout -out pubkey.pem
     Also added necessary DSA public key functions to handle this.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
9579 9580 9581 9582 9583 9584 9585 9586 9587 9588
  *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
     in the message. This was handled by allowing
     X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
     [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]

  *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
     to the end of the strings whereas this didn't. This would cause problems
     if strings read with d2i_ASN1_bytes() were later modified.
     [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]

9589 9590 9591 9592 9593 9594 9595 9596 9597 9598 9599 9600 9601 9602
  *) Fix for base64 decode bug. When a base64 bio reads only one line of
     data and it contains EOF it will end up returning an error. This is
     caused by input 46 bytes long. The cause is due to the way base64
     BIOs find the start of base64 encoded data. They do this by trying a
     trial decode on each line until they find one that works. When they
     do a flag is set and it starts again knowing it can pass all the
     data directly through the decoder. Unfortunately it doesn't reset
     the context it uses. This means that if EOF is reached an attempt
     is made to pass two EOFs through the context and this causes the
     resulting error. This can also cause other problems as well. As is
     usual with these problems it takes *ages* to find and the fix is
     trivial: move one line.
     [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]

9603 9604 9605 9606 9607 9608 9609 9610 9611 9612 9613 9614 9615
  *) Ugly workaround to get s_client and s_server working under Windows. The
     old code wouldn't work because it needed to select() on sockets and the
     tty (for keypresses and to see if data could be written). Win32 only
     supports select() on sockets so we select() with a 1s timeout on the
     sockets and then see if any characters are waiting to be read, if none
     are present then we retry, we also assume we can always write data to
     the tty. This isn't nice because the code then blocks until we've
     received a complete line of data and it is effectively polling the
     keyboard at 1s intervals: however it's quite a bit better than not
     working at all :-) A dedicated Windows application might handle this
     with an event loop for example.
     [Steve Henson]

9616 9617 9618 9619 9620 9621 9622 9623 9624 9625 9626
  *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
     and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
     will be called when RSA_sign() and RSA_verify() are used. This is useful
     if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
     For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
     should *not* be used: RSA_sign() and RSA_verify() must be used instead.
     This necessitated the support of an extra signature type NID_md5_sha1
     for SSL signatures and modifications to the SSL library to use it instead
     of calling RSA_public_decrypt() and RSA_private_encrypt().
     [Steve Henson]

9627 9628 9629
  *) Add new -verify -CAfile and -CApath options to the crl program, these
     will lookup a CRL issuers certificate and verify the signature in a
     similar way to the verify program. Tidy up the crl program so it
9630
     no longer accesses structures directly. Make the ASN1 CRL parsing a bit
9631 9632 9633 9634
     less strict. It will now permit CRL extensions even if it is not
     a V2 CRL: this will allow it to tolerate some broken CRLs.
     [Steve Henson]

9635 9636 9637 9638 9639
  *) Initialize all non-automatic variables each time one of the openssl
     sub-programs is started (this is necessary as they may be started
     multiple times from the "OpenSSL>" prompt).
     [Lennart Bang, Bodo Moeller]

9640 9641 9642 9643 9644 9645 9646
  *) Preliminary compilation option RSA_NULL which disables RSA crypto without
     removing all other RSA functionality (this is what NO_RSA does). This
     is so (for example) those in the US can disable those operations covered
     by the RSA patent while allowing storage and parsing of RSA keys and RSA
     key generation.
     [Steve Henson]

9647
  *) Non-copying interface to BIO pairs.
9648
     (still largely untested)
9649 9650
     [Bodo Moeller]

9651 9652 9653 9654
  *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
     ASCII string. This was handled independently in various places before.
     [Steve Henson]

9655 9656 9657 9658
  *) New functions UTF8_getc() and UTF8_putc() that parse and generate
     UTF8 strings a character at a time.
     [Steve Henson]

9659 9660 9661 9662 9663
  *) Use client_version from client hello to select the protocol
     (s23_srvr.c) and for RSA client key exchange verification
     (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
     [Bodo Moeller]

9664 9665 9666 9667 9668 9669 9670
  *) Add various utility functions to handle SPKACs, these were previously
     handled by poking round in the structure internals. Added new function
     NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
     print, verify and generate SPKACs. Based on an original idea from
     Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
     [Steve Henson]

A
Andy Polyakov 已提交
9671 9672 9673
  *) RIPEMD160 is operational on all platforms and is back in 'make test'.
     [Andy Polyakov]

9674 9675 9676 9677 9678 9679 9680 9681
  *) Allow the config file extension section to be overwritten on the
     command line. Based on an original idea from Massimiliano Pala
     <madwolf@comune.modena.it>. The new option is called -extensions
     and can be applied to ca, req and x509. Also -reqexts to override
     the request extensions in req and -crlexts to override the crl extensions
     in ca.
     [Steve Henson]

9682 9683 9684 9685 9686 9687 9688
  *) Add new feature to the SPKAC handling in ca.  Now you can include
     the same field multiple times by preceding it by "XXXX." for example:
     1.OU="Unit name 1"
     2.OU="Unit name 2"
     this is the same syntax as used in the req config file.
     [Steve Henson]

9689 9690 9691 9692 9693 9694
  *) Allow certificate extensions to be added to certificate requests. These
     are specified in a 'req_extensions' option of the req section of the
     config file. They can be printed out with the -text option to req but
     are otherwise ignored at present.
     [Steve Henson]

9695
  *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
9696
     data read consists of only the final block it would not decrypted because
9697 9698 9699 9700 9701
     EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
     A misplaced 'break' also meant the decrypted final block might not be
     copied until the next read.
     [Steve Henson]

9702 9703 9704 9705 9706
  *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
     a few extra parameters to the DH structure: these will be useful if
     for example we want the value of 'q' or implement X9.42 DH.
     [Steve Henson]

9707 9708 9709 9710 9711 9712 9713 9714
  *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
     provides hooks that allow the default DSA functions or functions on a
     "per key" basis to be replaced. This allows hardware acceleration and
     hardware key storage to be handled without major modification to the
     library. Also added low level modexp hooks and CRYPTO_EX structure and 
     associated functions.
     [Steve Henson]

9715 9716 9717 9718 9719 9720 9721 9722 9723
  *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
     as "read only": it can't be written to and the buffer it points to will
     not be freed. Reading from a read only BIO is much more efficient than
     a normal memory BIO. This was added because there are several times when
     an area of memory needs to be read from a BIO. The previous method was
     to create a memory BIO and write the data to it, this results in two
     copies of the data and an O(n^2) reading algorithm. There is a new
     function BIO_new_mem_buf() which creates a read only memory BIO from
     an area of memory. Also modified the PKCS#7 routines to use read only
9724
     memory BIOs.
9725 9726
     [Steve Henson]

9727 9728 9729
  *) Bugfix: ssl23_get_client_hello did not work properly when called in
     state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
     a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
B
Bodo Moeller 已提交
9730
     but a retry condition occured while trying to read the rest.
9731 9732
     [Bodo Moeller]

9733 9734 9735 9736 9737 9738 9739 9740
  *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
     NID_pkcs7_encrypted by default: this was wrong since this should almost
     always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
     the encrypted data type: this is a more sensible place to put it and it
     allows the PKCS#12 code to be tidied up that duplicated this
     functionality.
     [Steve Henson]

9741 9742 9743 9744 9745
  *) Changed obj_dat.pl script so it takes its input and output files on
     the command line. This should avoid shell escape redirection problems
     under Win32.
     [Steve Henson]

9746
  *) Initial support for certificate extension requests, these are included
9747 9748
     in things like Xenroll certificate requests. Included functions to allow
     extensions to be obtained and added.
9749 9750
     [Steve Henson]

B
Bodo Möller 已提交
9751 9752 9753 9754
  *) -crlf option to s_client and s_server for sending newlines as
     CRLF (as required by many protocols).
     [Bodo Moeller]

B
Bodo Möller 已提交
9755
 Changes between 0.9.3a and 0.9.4  [09 Aug 1999]
9756
  
B
Bodo Möller 已提交
9757
  *) Install libRSAglue.a when OpenSSL is built with RSAref.
9758
     [Ralf S. Engelschall]
9759

9760 9761 9762
  *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
     [Andrija Antonijevic <TheAntony2@bigfoot.com>]

9763 9764 9765 9766
  *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
     program.
     [Steve Henson]

9767 9768 9769 9770 9771 9772 9773 9774 9775 9776 9777 9778 9779 9780 9781 9782 9783 9784 9785 9786 9787
  *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
     DH parameters/keys (q is lost during that conversion, but the resulting
     DH parameters contain its length).

     For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
     much faster than DH_generate_parameters (which creates parameters
     where p = 2*q + 1), and also the smaller q makes DH computations
     much more efficient (160-bit exponentiation instead of 1024-bit
     exponentiation); so this provides a convenient way to support DHE
     ciphersuites in SSL/TLS servers (see ssl/ssltest.c).  It is of
     utter importance to use
         SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
     or
         SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
     when such DH parameters are used, because otherwise small subgroup
     attacks may become possible!
     [Bodo Moeller]

  *) Avoid memory leak in i2d_DHparams.
     [Bodo Moeller]

9788 9789 9790 9791
  *) Allow the -k option to be used more than once in the enc program:
     this allows the same encrypted message to be read by multiple recipients.
     [Steve Henson]

D
Dr. Stephen Henson 已提交
9792 9793 9794 9795 9796 9797
  *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
     an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
     it will always use the numerical form of the OID, even if it has a short
     or long name.
     [Steve Henson]

9798 9799 9800 9801
  *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
     method only got called if p,q,dmp1,dmq1,iqmp components were present,
     otherwise bn_mod_exp was called. In the case of hardware keys for example
     no private key components need be present and it might store extra data
9802 9803 9804
     in the RSA structure, which cannot be accessed from bn_mod_exp.
     By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
     private key operations.
9805 9806
     [Steve Henson]

A
Andy Polyakov 已提交
9807 9808 9809
  *) Added support for SPARC Linux.
     [Andy Polyakov]

9810 9811 9812 9813 9814 9815 9816 9817
  *) pem_password_cb function type incompatibly changed from
          typedef int pem_password_cb(char *buf, int size, int rwflag);
     to
          ....(char *buf, int size, int rwflag, void *userdata);
     so that applications can pass data to their callbacks:
     The PEM[_ASN1]_{read,write}... functions and macros now take an
     additional void * argument, which is just handed through whenever
     the password callback is called.
9818
     [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
9819 9820 9821 9822 9823 9824 9825 9826 9827 9828

     New function SSL_CTX_set_default_passwd_cb_userdata.

     Compatibility note: As many C implementations push function arguments
     onto the stack in reverse order, the new library version is likely to
     interoperate with programs that have been compiled with the old
     pem_password_cb definition (PEM_whatever takes some data that
     happens to be on the stack as its last argument, and the callback
     just ignores this garbage); but there is no guarantee whatsoever that
     this will work.
B
Bodo Möller 已提交
9829

9830 9831 9832
  *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
     (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
     problems not only on Windows, but also on some Unix platforms.
9833
     To avoid problematic command lines, these definitions are now in an
9834 9835
     auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
     for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
9836 9837
     [Bodo Moeller]

9838 9839 9840
  *) MIPS III/IV assembler module is reimplemented.
     [Andy Polyakov]

U
Ulf Möller 已提交
9841 9842
  *) More DES library cleanups: remove references to srand/rand and
     delete an unused file.
9843
     [Ulf Möller]
U
Ulf Möller 已提交
9844

9845 9846 9847 9848 9849 9850
  *) Add support for the the free Netwide assembler (NASM) under Win32,
     since not many people have MASM (ml) and it can be hard to obtain.
     This is currently experimental but it seems to work OK and pass all
     the tests. Check out INSTALL.W32 for info.
     [Steve Henson]

B
Bodo Möller 已提交
9851 9852 9853 9854 9855 9856
  *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
     without temporary keys kept an extra copy of the server key,
     and connections with temporary keys did not free everything in case
     of an error.
     [Bodo Moeller]

B
Bodo Möller 已提交
9857 9858 9859 9860
  *) New function RSA_check_key and new openssl rsa option -check
     for verifying the consistency of RSA keys.
     [Ulf Moeller, Bodo Moeller]

9861 9862 9863 9864 9865
  *) Various changes to make Win32 compile work: 
     1. Casts to avoid "loss of data" warnings in p5_crpt2.c
     2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
        comparison" warnings.
     3. Add sk_<TYPE>_sort to DEF file generator and do make update.
9866
     [Steve Henson]
9867

9868 9869 9870 9871 9872
  *) Add a debugging option to PKCS#5 v2 key generation function: when
     you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
     derived keys are printed to stderr.
     [Steve Henson]

9873 9874 9875
  *) Copy the flags in ASN1_STRING_dup().
     [Roman E. Pavlov <pre@mo.msk.ru>]

9876 9877 9878 9879 9880 9881 9882 9883 9884 9885 9886 9887 9888 9889 9890
  *) The x509 application mishandled signing requests containing DSA
     keys when the signing key was also DSA and the parameters didn't match.

     It was supposed to omit the parameters when they matched the signing key:
     the verifying software was then supposed to automatically use the CA's
     parameters if they were absent from the end user certificate.

     Omitting parameters is no longer recommended. The test was also
     the wrong way round! This was probably due to unusual behaviour in
     EVP_cmp_parameters() which returns 1 if the parameters match. 
     This meant that parameters were omitted when they *didn't* match and
     the certificate was useless. Certificates signed with 'ca' didn't have
     this bug.
     [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]

9891 9892
  *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
     The interface is as follows:
B
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9893 9894 9895 9896 9897 9898 9899 9900 9901 9902 9903
     Applications can use
         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
     "off" is now the default.
     The library internally uses
         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
     to disable memory-checking temporarily.

     Some inconsistent states that previously were possible (and were
     even the default) are now avoided.
9904 9905 9906 9907

     -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
     with each memory chunk allocated; this is occasionally more helpful
     than just having a counter.
9908 9909 9910 9911 9912

     -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.

     -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
     extensions.
B
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9913 9914
     [Bodo Moeller]

9915 9916 9917
  *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
     which largely parallels "options", but is for changing API behaviour,
     whereas "options" are about protocol behaviour.
9918
     Initial "mode" flags are:
9919 9920 9921 9922 9923 9924 9925 9926 9927

     SSL_MODE_ENABLE_PARTIAL_WRITE   Allow SSL_write to report success when
                                     a single record has been written.
     SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER  Don't insist that SSL_write
                                     retries use the same buffer location.
                                     (But all of the contents must be
                                     copied!)
     [Bodo Moeller]

9928
  *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9929 9930
     worked.

U
Ulf Möller 已提交
9931
  *) Fix problems with no-hmac etc.
9932
     [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
U
Ulf Möller 已提交
9933

9934 9935 9936 9937 9938
  *) New functions RSA_get_default_method(), RSA_set_method() and
     RSA_get_method(). These allows replacement of RSA_METHODs without having
     to mess around with the internals of an RSA structure.
     [Steve Henson]

B
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9939 9940 9941 9942 9943
  *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
     Also really enable memory leak checks in openssl.c and in some
     test programs.
     [Chad C. Mulligan, Bodo Moeller]

9944 9945 9946 9947 9948 9949 9950 9951
  *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
     up the length of negative integers. This has now been simplified to just
     store the length when it is first determined and use it later, rather
     than trying to keep track of where data is copied and updating it to
     point to the end.
     [Steve Henson, reported by Brien Wheeler
      <bwheeler@authentica-security.com>]

9952 9953 9954 9955 9956 9957 9958 9959
  *) Add a new function PKCS7_signatureVerify. This allows the verification
     of a PKCS#7 signature but with the signing certificate passed to the
     function itself. This contrasts with PKCS7_dataVerify which assumes the
     certificate is present in the PKCS#7 structure. This isn't always the
     case: certificates can be omitted from a PKCS#7 structure and be
     distributed by "out of band" means (such as a certificate database).
     [Steve Henson]

9960 9961 9962 9963 9964
  *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
     function prototypes in pem.h, also change util/mkdef.pl to add the
     necessary function names. 
     [Steve Henson]

9965
  *) mk1mf.pl (used by Windows builds) did not properly read the
9966
     options set by Configure in the top level Makefile, and Configure
B
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9967
     was not even able to write more than one option correctly.
9968
     Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9969 9970
     [Bodo Moeller]

9971 9972 9973 9974 9975
  *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
     file to be loaded from a BIO or FILE pointer. The BIO version will
     for example allow memory BIOs to contain config info.
     [Steve Henson]

B
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9976 9977 9978
  *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
     Whoever hopes to achieve shared-library compatibility across versions
     must use this, not the compile-time macro.
B
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9979 9980 9981 9982
     (Exercise 0.9.4: Which is the minimum library version required by
     such programs?)
     Note: All this applies only to multi-threaded programs, others don't
     need locks.
B
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9983 9984
     [Bodo Moeller]

B
Bodo Möller 已提交
9985 9986 9987 9988 9989 9990 9991 9992 9993 9994
  *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
     through a BIO pair triggered the default case, i.e.
     SSLerr(...,SSL_R_UNKNOWN_STATE).
     [Bodo Moeller]

  *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
     can use the SSL library even if none of the specific BIOs is
     appropriate.
     [Bodo Moeller]

9995 9996 9997 9998
  *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
     for the encoded length.
     [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]

9999 10000 10001
  *) Add initial documentation of the X509V3 functions.
     [Steve Henson]

10002 10003 10004 10005 10006 10007
  *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 
     PEM_write_bio_PKCS8PrivateKey() that are equivalent to
     PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
     secure PKCS#8 private key format with a high iteration count.
     [Steve Henson]

10008 10009 10010 10011
  *) Fix determination of Perl interpreter: A perl or perl5
     _directory_ in $PATH was also accepted as the interpreter.
     [Ralf S. Engelschall]

10012 10013 10014 10015 10016 10017
  *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
     wrong with it but it was very old and did things like calling
     PEM_ASN1_read() directly and used MD5 for the hash not to mention some
     unusual formatting.
     [Steve Henson]

10018 10019 10020 10021 10022 10023 10024 10025 10026 10027
  *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
     to use the new extension code.
     [Steve Henson]

  *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
     with macros. This should make it easier to change their form, add extra
     arguments etc. Fix a few PEM prototypes which didn't have cipher as a
     constant.
     [Steve Henson]

B
Bodo Möller 已提交
10028 10029 10030 10031 10032
  *) Add to configuration table a new entry that can specify an alternative
     name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
     according to Mark Crispin <MRC@Panda.COM>.
     [Bodo Moeller]

10033
#if 0
10034 10035
  *) DES CBC did not update the IV. Weird.
     [Ben Laurie]
10036
#else
10037 10038 10039
     des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
     Changing the behaviour of the former might break existing programs --
     where IV updating is needed, des_ncbc_encrypt can be used.
10040
#endif
10041

10042 10043 10044 10045 10046 10047
  *) When bntest is run from "make test" it drives bc to check its
     calculations, as well as internally checking them. If an internal check
     fails, it needs to cause bc to give a non-zero result or make test carries
     on without noticing the failure. Fixed.
     [Ben Laurie]

10048
  *) DES library cleanups.
10049
     [Ulf Möller]
10050

10051 10052 10053 10054 10055 10056 10057 10058
  *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
     used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
     ciphers. NOTE: although the key derivation function has been verified
     against some published test vectors it has not been extensively tested
     yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
     of v2.0.
     [Steve Henson]

B
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10059 10060
  *) Instead of "mkdir -p", which is not fully portable, use new
     Perl script "util/mkdir-p.pl".
B
Bodo Möller 已提交
10061
     [Bodo Moeller]
B
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10062

10063 10064 10065 10066 10067 10068 10069 10070 10071 10072 10073
  *) Rewrite the way password based encryption (PBE) is handled. It used to
     assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
     structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
     but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
     the 'parameter' field of the AlgorithmIdentifier is passed to the
     underlying key generation function so it must do its own ASN1 parsing.
     This has also changed the EVP_PBE_CipherInit() function which now has a
     'parameter' argument instead of literal salt and iteration count values
     and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
     [Steve Henson]

10074
  *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
10075 10076 10077 10078 10079
     and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
     Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
     KEY" because this clashed with PKCS#8 unencrypted string. Since this
     value was just used as a "magic string" and not used directly its
     value doesn't matter.
10080 10081
     [Steve Henson]

10082 10083 10084 10085
  *) Introduce some semblance of const correctness to BN. Shame C doesn't
     support mutable.
     [Ben Laurie]

B
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10086
  *) "linux-sparc64" configuration (ultrapenguin).
B
Bodo Möller 已提交
10087
     [Ray Miller <ray.miller@oucs.ox.ac.uk>]
B
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10088 10089
     "linux-sparc" configuration.
     [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
B
Bodo Möller 已提交
10090

10091
  *) config now generates no-xxx options for missing ciphers.
10092
     [Ulf Möller]
10093 10094 10095 10096 10097 10098 10099 10100

  *) Support the EBCDIC character set (work in progress).
     File ebcdic.c not yet included because it has a different license.
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]

  *) Support BS2000/OSD-POSIX.
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]

B
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10101 10102 10103
  *) Make callbacks for key generation use void * instead of char *.
     [Ben Laurie]

B
Ben Laurie 已提交
10104 10105 10106
  *) Make S/MIME samples compile (not yet tested).
     [Ben Laurie]

B
Bodo Möller 已提交
10107 10108 10109
  *) Additional typesafe stacks.
     [Ben Laurie]

B
Bodo Möller 已提交
10110
  *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
B
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10111 10112
     [Bodo Moeller]

B
Bodo Möller 已提交
10113

B
Ben Laurie 已提交
10114
 Changes between 0.9.3 and 0.9.3a  [29 May 1999]
10115

B
Bodo Möller 已提交
10116 10117
  *) New configuration variant "sco5-gcc".

B
Bodo Möller 已提交
10118
  *) Updated some demos.
B
Bodo Möller 已提交
10119
     [Sean O Riordain, Wade Scholine]
B
Bodo Möller 已提交
10120

B
Bodo Möller 已提交
10121 10122 10123 10124 10125 10126
  *) Add missing BIO_free at exit of pkcs12 application.
     [Wu Zhigang]

  *) Fix memory leak in conf.c.
     [Steve Henson]

10127 10128 10129 10130 10131 10132 10133 10134 10135 10136 10137 10138 10139
  *) Updates for Win32 to assembler version of MD5.
     [Steve Henson]

  *) Set #! path to perl in apps/der_chop to where we found it
     instead of using a fixed path.
     [Bodo Moeller]

  *) SHA library changes for irix64-mips4-cc.
     [Andy Polyakov]

  *) Improvements for VMS support.
     [Richard Levitte]

B
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10140

B
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10141
 Changes between 0.9.2b and 0.9.3  [24 May 1999]
U
Ulf Möller 已提交
10142

10143 10144 10145 10146
  *) Bignum library bug fix. IRIX 6 passes "make test" now!
     This also avoids the problems with SC4.2 and unpatched SC5.  
     [Andy Polyakov <appro@fy.chalmers.se>]

10147 10148 10149 10150 10151 10152 10153 10154 10155 10156 10157 10158
  *) New functions sk_num, sk_value and sk_set to replace the previous macros.
     These are required because of the typesafe stack would otherwise break 
     existing code. If old code used a structure member which used to be STACK
     and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
     sk_num or sk_value it would produce an error because the num, data members
     are not present in STACK_OF. Now it just produces a warning. sk_set
     replaces the old method of assigning a value to sk_value
     (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
     that does this will no longer work (and should use sk_set instead) but
     this could be regarded as a "questionable" behaviour anyway.
     [Steve Henson]

10159 10160 10161 10162
  *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
     correctly handle encrypted S/MIME data.
     [Steve Henson]

B
Bodo Möller 已提交
10163
  *) Change type of various DES function arguments from des_cblock
B
Typo.  
Bodo Möller 已提交
10164
     (which means, in function argument declarations, pointer to char)
B
Bodo Möller 已提交
10165
     to des_cblock * (meaning pointer to array with 8 char elements),
B
Bodo Moeller 已提交
10166
     which allows the compiler to do more typechecking; it was like
B
Bodo Möller 已提交
10167 10168 10169 10170 10171
     that back in SSLeay, but with lots of ugly casts.

     Introduce new type const_des_cblock.
     [Bodo Moeller]

10172 10173 10174 10175 10176
  *) Reorganise the PKCS#7 library and get rid of some of the more obvious
     problems: find RecipientInfo structure that matches recipient certificate
     and initialise the ASN1 structures properly based on passed cipher.
     [Steve Henson]

B
Ben Laurie 已提交
10177 10178 10179
  *) Belatedly make the BN tests actually check the results.
     [Ben Laurie]

10180 10181 10182 10183 10184 10185
  *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
     to and from BNs: it was completely broken. New compilation option
     NEG_PUBKEY_BUG to allow for some broken certificates that encode public
     key elements as negative integers.
     [Steve Henson]

U
Ulf Möller 已提交
10186 10187 10188
  *) Reorganize and speed up MD5.
     [Andy Polyakov <appro@fy.chalmers.se>]

U
Ulf Möller 已提交
10189 10190
  *) VMS support.
     [Richard Levitte <richard@levitte.org>]
10191

10192 10193 10194 10195 10196
  *) New option -out to asn1parse to allow the parsed structure to be
     output to a file. This is most useful when combined with the -strparse
     option to examine the output of things like OCTET STRINGS.
     [Steve Henson]

10197 10198 10199 10200 10201 10202 10203
  *) Make SSL library a little more fool-proof by not requiring any longer
     that SSL_set_{accept,connect}_state be called before
     SSL_{accept,connect} may be used (SSL_set_..._state is omitted
     in many applications because usually everything *appeared* to work as
     intended anyway -- now it really works as intended).
     [Bodo Moeller]

U
Ulf Möller 已提交
10204
  *) Move openssl.cnf out of lib/.
10205
     [Ulf Möller]
U
Ulf Möller 已提交
10206

10207 10208 10209 10210 10211
  *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
     -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
     -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 
     [Ralf S. Engelschall]

10212 10213 10214 10215
  *) Various fixes to the EVP and PKCS#7 code. It may now be able to
     handle PKCS#7 enveloped data properly.
     [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]

10216 10217 10218 10219 10220 10221 10222 10223 10224 10225 10226 10227 10228 10229 10230 10231
  *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
     copying pointers.  The cert_st handling is changed by this in
     various ways (and thus what used to be known as ctx->default_cert
     is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
     any longer when s->cert does not give us what we need).
     ssl_cert_instantiate becomes obsolete by this change.
     As soon as we've got the new code right (possibly it already is?),
     we have solved a couple of bugs of the earlier code where s->cert
     was used as if it could not have been shared with other SSL structures.

     Note that using the SSL API in certain dirty ways now will result
     in different behaviour than observed with earlier library versions:
     Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
     does not influence s as it used to.
     
     In order to clean up things more thoroughly, inside SSL_SESSION
10232 10233 10234 10235 10236
     we don't use CERT any longer, but a new structure SESS_CERT
     that holds per-session data (if available); currently, this is
     the peer's certificate chain and, for clients, the server's certificate
     and temporary key.  CERT holds only those values that can have
     meaningful defaults in an SSL_CTX.
10237 10238
     [Bodo Moeller]

10239 10240 10241 10242 10243 10244
  *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
     from the internal representation. Various PKCS#7 fixes: remove some
     evil casts and set the enc_dig_alg field properly based on the signing
     key type.
     [Steve Henson]

10245 10246 10247 10248 10249 10250 10251 10252 10253 10254 10255 10256
  *) Allow PKCS#12 password to be set from the command line or the
     environment. Let 'ca' get its config file name from the environment
     variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
     and 'x509').
     [Steve Henson]

  *) Allow certificate policies extension to use an IA5STRING for the
     organization field. This is contrary to the PKIX definition but
     VeriSign uses it and IE5 only recognises this form. Document 'x509'
     extension option.
     [Steve Henson]

B
Ben Laurie 已提交
10257 10258 10259 10260
  *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
     without disallowing inline assembler and the like for non-pedantic builds.
     [Ben Laurie]

10261
  *) Support Borland C++ builder.
10262
     [Janez Jere <jj@void.si>, modified by Ulf Möller]
10263 10264

  *) Support Mingw32.
10265
     [Ulf Möller]
10266

10267 10268 10269
  *) SHA-1 cleanups and performance enhancements.
     [Andy Polyakov <appro@fy.chalmers.se>]

U
Ulf Möller 已提交
10270
  *) Sparc v8plus assembler for the bignum library.
10271
     [Andy Polyakov <appro@fy.chalmers.se>]
U
Ulf Möller 已提交
10272

10273
  *) Accept any -xxx and +xxx compiler options in Configure.
10274
     [Ulf Möller]
10275 10276 10277 10278

  *) Update HPUX configuration.
     [Anonymous]
  
10279 10280 10281
  *) Add missing sk_<type>_unshift() function to safestack.h
     [Ralf S. Engelschall]

10282 10283 10284 10285 10286 10287
  *) New function SSL_CTX_use_certificate_chain_file that sets the
     "extra_cert"s in addition to the certificate.  (This makes sense
     only for "PEM" format files, as chains as a whole are not
     DER-encoded.)
     [Bodo Moeller]

10288 10289 10290 10291 10292 10293 10294
  *) Support verify_depth from the SSL API.
     x509_vfy.c had what can be considered an off-by-one-error:
     Its depth (which was not part of the external interface)
     was actually counting the number of certificates in a chain;
     now it really counts the depth.
     [Bodo Moeller]

10295 10296 10297 10298 10299 10300
  *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
     instead of X509err, which often resulted in confusing error
     messages since the error codes are not globally unique
     (e.g. an alleged error in ssl3_accept when a certificate
     didn't match the private key).

10301
  *) New function SSL_CTX_set_session_id_context that allows to set a default
B
Bodo Möller 已提交
10302 10303
     value (so that you don't need SSL_set_session_id_context for each
     connection using the SSL_CTX).
10304 10305
     [Bodo Moeller]

U
Ulf Möller 已提交
10306
  *) OAEP decoding bug fix.
10307
     [Ulf Möller]
U
Ulf Möller 已提交
10308

10309 10310 10311 10312
  *) Support INSTALL_PREFIX for package builders, as proposed by
     David Harris.
     [Bodo Moeller]

B
 
Bodo Möller 已提交
10313 10314 10315 10316 10317
  *) New Configure options "threads" and "no-threads".  For systems
     where the proper compiler options are known (currently Solaris
     and Linux), "threads" is the default.
     [Bodo Moeller]

10318 10319 10320
  *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
     [Bodo Moeller]

10321 10322 10323 10324 10325
  *) Install various scripts to $(OPENSSLDIR)/misc, not to
     $(INSTALLTOP)/bin -- they shouldn't clutter directories
     such as /usr/local/bin.
     [Bodo Moeller]

U
Ulf Möller 已提交
10326
  *) "make linux-shared" to build shared libraries.
10327
     [Niels Poppe <niels@netbox.org>]
U
Ulf Möller 已提交
10328

10329
  *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
10330
     [Ulf Möller]
10331

10332 10333 10334 10335
  *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
     extension adding in x509 utility.
     [Steve Henson]

10336
  *) Remove NOPROTO sections and error code comments.
10337
     [Ulf Möller]
10338

10339 10340 10341 10342
  *) Partial rewrite of the DEF file generator to now parse the ANSI
     prototypes.
     [Steve Henson]

10343
  *) New Configure options --prefix=DIR and --openssldir=DIR.
10344
     [Ulf Möller]
10345

10346 10347 10348 10349 10350 10351 10352 10353
  *) Complete rewrite of the error code script(s). It is all now handled
     by one script at the top level which handles error code gathering,
     header rewriting and C source file generation. It should be much better
     than the old method: it now uses a modified version of Ulf's parser to
     read the ANSI prototypes in all header files (thus the old K&R definitions
     aren't needed for error creation any more) and do a better job of
     translating function codes into names. The old 'ASN1 error code imbedded
     in a comment' is no longer necessary and it doesn't use .err files which
10354 10355
     have now been deleted. Also the error code call doesn't have to appear all
     on one line (which resulted in some large lines...).
10356 10357
     [Steve Henson]

B
 
Bodo Möller 已提交
10358
  *) Change #include filenames from <foo.h> to <openssl/foo.h>.
B
 
Bodo Möller 已提交
10359 10360
     [Bodo Moeller]

10361 10362 10363 10364
  *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
     0 (which usually indicates a closed connection), but continue reading.
     [Bodo Moeller]

B
 
Bodo Möller 已提交
10365 10366 10367
  *) Fix some race conditions.
     [Bodo Moeller]

10368 10369 10370 10371
  *) Add support for CRL distribution points extension. Add Certificate
     Policies and CRL distribution points documentation.
     [Steve Henson]

10372
  *) Move the autogenerated header file parts to crypto/opensslconf.h.
10373
     [Ulf Möller]
10374

B
Ben Laurie 已提交
10375 10376 10377 10378 10379
  *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
     8 of keying material. Merlin has also confirmed interop with this fix
     between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
     [Merlin Hughes <merlin@baltimore.ie>]

U
Ulf Möller 已提交
10380 10381 10382 10383 10384
  *) Fix lots of warnings.
     [Richard Levitte <levitte@stacken.kth.se>]
 
  *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
     the directory spec didn't end with a LIST_SEPARATOR_CHAR.
B
Ben Laurie 已提交
10385
     [Richard Levitte <levitte@stacken.kth.se>]
U
Ulf Möller 已提交
10386
 
U
Ulf Möller 已提交
10387 10388 10389
  *) Fix problems with sizeof(long) == 8.
     [Andy Polyakov <appro@fy.chalmers.se>]

U
Ulf Möller 已提交
10390
  *) Change functions to ANSI C.
10391
     [Ulf Möller]
U
Ulf Möller 已提交
10392

U
Ulf Möller 已提交
10393
  *) Fix typos in error codes.
10394
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
U
Ulf Möller 已提交
10395

10396
  *) Remove defunct assembler files from Configure.
10397
     [Ulf Möller]
10398

U
Ulf Möller 已提交
10399 10400 10401
  *) SPARC v8 assembler BIGNUM implementation.
     [Andy Polyakov <appro@fy.chalmers.se>]

10402
  *) Support for Certificate Policies extension: both print and set.
10403
     Various additions to support the r2i method this uses.
10404 10405
     [Steve Henson]

B
Ben Laurie 已提交
10406 10407 10408 10409
  *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
     return a const string when you are expecting an allocated buffer.
     [Ben Laurie]

10410 10411
  *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
     types DirectoryString and DisplayText.
10412 10413
     [Steve Henson]

10414 10415 10416 10417
  *) Add code to allow r2i extensions to access the configuration database,
     add an LHASH database driver and add several ctx helper functions.
     [Steve Henson]

10418 10419 10420 10421
  *) Fix an evil bug in bn_expand2() which caused various BN functions to
     fail when they extended the size of a BIGNUM.
     [Steve Henson]

10422 10423 10424 10425
  *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
     support typesafe stack.
     [Steve Henson]

B
Typo.  
Ben Laurie 已提交
10426 10427 10428
  *) Fix typo in SSL_[gs]et_options().
     [Nils Frostberg <nils@medcom.se>]

10429 10430 10431 10432
  *) Delete various functions and files that belonged to the (now obsolete)
     old X509V3 handling code.
     [Steve Henson]

U
Ulf Möller 已提交
10433
  *) New Configure option "rsaref".
10434
     [Ulf Möller]
U
Ulf Möller 已提交
10435

10436 10437 10438
  *) Don't auto-generate pem.h.
     [Bodo Moeller]

B
Ben Laurie 已提交
10439 10440 10441
  *) Introduce type-safe ASN.1 SETs.
     [Ben Laurie]

10442
  *) Convert various additional casted stacks to type-safe STACK_OF() variants.
B
Ben Laurie 已提交
10443
     [Ben Laurie, Ralf S. Engelschall, Steve Henson]
10444

B
Ben Laurie 已提交
10445 10446 10447 10448 10449 10450 10451
  *) Introduce type-safe STACKs. This will almost certainly break lots of code
     that links with OpenSSL (well at least cause lots of warnings), but fear
     not: the conversion is trivial, and it eliminates loads of evil casts. A
     few STACKed things have been converted already. Feel free to convert more.
     In the fullness of time, I'll do away with the STACK type altogether.
     [Ben Laurie]

10452 10453 10454 10455 10456 10457
  *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
     specified in <certfile> by updating the entry in the index.txt file.
     This way one no longer has to edit the index.txt file manually for
     revoking a certificate. The -revoke option does the gory details now.
     [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]

10458 10459 10460 10461 10462
  *) Fix `openssl crl -noout -text' combination where `-noout' killed the
     `-text' option at all and this way the `-noout -text' combination was
     inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
     [Ralf S. Engelschall]

10463 10464 10465 10466 10467
  *) Make sure a corresponding plain text error message exists for the
     X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
     verify callback function determined that a certificate was revoked.
     [Ralf S. Engelschall]

B
 
Bodo Möller 已提交
10468 10469 10470 10471 10472 10473 10474 10475
  *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
     ciphers that were excluded, e.g. by -DNO_IDEA.  Also, test
     all available cipers including rc5, which was forgotten until now.
     In order to let the testing shell script know which algorithms
     are available, a new (up to now undocumented) command
     "openssl list-cipher-commands" is used.
     [Bodo Moeller]

10476 10477 10478 10479
  *) Bugfix: s_client occasionally would sleep in select() when
     it should have checked SSL_pending() first.
     [Bodo Moeller]

U
Ulf Möller 已提交
10480 10481
  *) New functions DSA_do_sign and DSA_do_verify to provide access to
     the raw DSA values prior to ASN.1 encoding.
10482
     [Ulf Möller]
U
Ulf Möller 已提交
10483 10484

  *) Tweaks to Configure
B
Bodo Möller 已提交
10485
     [Niels Poppe <niels@netbox.org>]
U
Ulf Möller 已提交
10486

10487 10488 10489 10490
  *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
     yet...
     [Steve Henson]

10491
  *) New variables $(RANLIB) and $(PERL) in the Makefiles.
10492
     [Ulf Möller]
10493

U
Ulf Möller 已提交
10494 10495
  *) New config option to avoid instructions that are illegal on the 80386.
     The default code is faster, but requires at least a 486.
10496
     [Ulf Möller]
U
Ulf Möller 已提交
10497
  
10498 10499 10500 10501 10502 10503 10504 10505
  *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
     SSL2_SERVER_VERSION (not used at all) macros, which are now the
     same as SSL2_VERSION anyway.
     [Bodo Moeller]

  *) New "-showcerts" option for s_client.
     [Bodo Moeller]

10506 10507 10508 10509
  *) Still more PKCS#12 integration. Add pkcs12 application to openssl
     application. Various cleanups and fixes.
     [Steve Henson]

10510 10511 10512 10513 10514
  *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
     modify error routines to work internally. Add error codes and PBE init
     to library startup routines.
     [Steve Henson]

10515 10516 10517 10518 10519
  *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
     packing functions to asn1 and evp. Changed function names and error
     codes along the way.
     [Steve Henson]

10520 10521
  *) PKCS12 integration: and so it begins... First of several patches to
     slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
10522
     objects to objects.h
10523 10524
     [Steve Henson]

10525 10526 10527 10528
  *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
     and display support for Thawte strong extranet extension.
     [Steve Henson]

B
Ben Laurie 已提交
10529 10530 10531
  *) Add LinuxPPC support.
     [Jeff Dubrule <igor@pobox.org>]

10532 10533 10534 10535
  *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
     bn_div_words in alpha.s.
     [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]

10536 10537 10538 10539
  *) Make sure the RSA OAEP test is skipped under -DRSAref because
     OAEP isn't supported when OpenSSL is built with RSAref.
     [Ulf Moeller <ulf@fitug.de>]

10540 10541 10542 10543
  *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 
     so they no longer are missing under -DNOPROTO. 
     [Soren S. Jorvang <soren@t.dk>]

10544 10545

 Changes between 0.9.1c and 0.9.2b  [22 Mar 1999]
10546

B
Ben Laurie 已提交
10547 10548 10549 10550 10551 10552 10553 10554 10555 10556
  *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
     doesn't work when the session is reused. Coming soon!
     [Ben Laurie]

  *) Fix a security hole, that allows sessions to be reused in the wrong
     context thus bypassing client cert protection! All software that uses
     client certs and session caches in multiple contexts NEEDS PATCHING to
     allow session reuse! A fuller solution is in the works.
     [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]

10557 10558 10559 10560 10561 10562
  *) Some more source tree cleanups (removed obsolete files
     crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
     permission on "config" script to be executable) and a fix for the INSTALL
     document.
     [Ulf Moeller <ulf@fitug.de>]

10563 10564 10565 10566
  *) Remove some legacy and erroneous uses of malloc, free instead of
     Malloc, Free.
     [Lennart Bang <lob@netstream.se>, with minor changes by Steve]

B
Ben Laurie 已提交
10567 10568 10569
  *) Make rsa_oaep_test return non-zero on error.
     [Ulf Moeller <ulf@fitug.de>]

B
Ben Laurie 已提交
10570 10571 10572 10573 10574
  *) Add support for native Solaris shared libraries. Configure
     solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
     if someone would make that last step automatic.
     [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]

10575 10576 10577
  *) ctx_size was not built with the right compiler during "make links". Fixed.
     [Ben Laurie]

10578 10579 10580 10581 10582 10583
  *) Change the meaning of 'ALL' in the cipher list. It now means "everything
     except NULL ciphers". This means the default cipher list will no longer
     enable NULL ciphers. They need to be specifically enabled e.g. with
     the string "DEFAULT:eNULL".
     [Steve Henson]

10584 10585 10586 10587 10588
  *) Fix to RSA private encryption routines: if p < q then it would
     occasionally produce an invalid result. This will only happen with
     externally generated keys because OpenSSL (and SSLeay) ensure p > q.
     [Steve Henson]

10589 10590 10591 10592 10593 10594 10595
  *) Be less restrictive and allow also `perl util/perlpath.pl
     /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
     because this way one can also use an interpreter named `perl5' (which is
     usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
     installed as `perl').
     [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]

10596 10597 10598
  *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
     [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]

10599
  *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
10600
     advapi32.lib to Win32 build and change the pem test comparison
10601
     to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
10602 10603 10604
     suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
     and crypto/des/ede_cbcm_enc.c.
     [Steve Henson]
10605

B
Ben Laurie 已提交
10606 10607 10608
  *) DES quad checksum was broken on big-endian architectures. Fixed.
     [Ben Laurie]

10609 10610 10611 10612 10613
  *) Comment out two functions in bio.h that aren't implemented. Fix up the
     Win32 test batch file so it (might) work again. The Win32 test batch file
     is horrible: I feel ill....
     [Steve Henson]

10614 10615 10616 10617
  *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
     in e_os.h. Audit of header files to check ANSI and non ANSI
     sections: 10 functions were absent from non ANSI section and not exported
     from Windows DLLs. Fixed up libeay.num for new functions.
10618
     [Steve Henson]
10619

10620 10621 10622
  *) Make `openssl version' output lines consistent.
     [Ralf S. Engelschall]

10623 10624 10625 10626 10627
  *) Fix Win32 symbol export lists for BIO functions: Added
     BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
     to ms/libeay{16,32}.def.
     [Ralf S. Engelschall]

10628 10629 10630 10631 10632 10633 10634 10635 10636
  *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
     fine under Unix and passes some trivial tests I've now added. But the
     whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
     added to make sure no one expects that this stuff really works in the
     OpenSSL 0.9.2 release.  Additionally I've started to clean the XS sources
     up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
     openssl_bio.xs.
     [Ralf S. Engelschall]

B
Ben Laurie 已提交
10637 10638 10639
  *) Fix the generation of two part addresses in perl.
     [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]

B
Ben Laurie 已提交
10640 10641 10642
  *) Add config entry for Linux on MIPS.
     [John Tobey <jtobey@channel1.com>]

B
Ben Laurie 已提交
10643
  *) Make links whenever Configure is run, unless we are on Windoze.
B
Ben Laurie 已提交
10644 10645
     [Ben Laurie]

10646 10647 10648
  *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
     Currently only issuerAltName and AuthorityKeyIdentifier make any sense
     in CRLs.
10649
     [Steve Henson]
10650

10651 10652 10653 10654
  *) Add a useful kludge to allow package maintainers to specify compiler and
     other platforms details on the command line without having to patch the
     Configure script everytime: One now can use ``perl Configure
     <id>:<details>'', i.e. platform ids are allowed to have details appended
10655
     to them (separated by colons). This is treated as there would be a static
10656 10657 10658 10659 10660 10661 10662
     pre-configured entry in Configure's %table under key <id> with value
     <details> and ``perl Configure <id>'' is called.  So, when you want to
     perform a quick test-compile under FreeBSD 3.1 with pgcc and without
     assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
     now, which overrides the FreeBSD-elf entry on-the-fly.
     [Ralf S. Engelschall]

B
Ben Laurie 已提交
10663 10664 10665
  *) Disable new TLS1 ciphersuites by default: they aren't official yet.
     [Ben Laurie]

10666 10667 10668 10669 10670 10671
  *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
     on the `perl Configure ...' command line. This way one can compile
     OpenSSL libraries with Position Independent Code (PIC) which is needed
     for linking it into DSOs.
     [Ralf S. Engelschall]

B
Ben Laurie 已提交
10672 10673 10674 10675
  *) Remarkably, export ciphers were totally broken and no-one had noticed!
     Fixed.
     [Ben Laurie]

10676 10677 10678 10679 10680 10681 10682
  *) Cleaned up the LICENSE document: The official contact for any license
     questions now is the OpenSSL core team under openssl-core@openssl.org.
     And add a paragraph about the dual-license situation to make sure people
     recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
     to the OpenSSL toolkit.
     [Ralf S. Engelschall]

10683 10684
  *) General source tree makefile cleanups: Made `making xxx in yyy...'
     display consistent in the source tree and replaced `/bin/rm' by `rm'.
10685
     Additionally cleaned up the `make links' target: Remove unnecessary
10686 10687 10688 10689 10690
     semicolons, subsequent redundant removes, inline point.sh into mklink.sh
     to speed processing and no longer clutter the display with confusing
     stuff. Instead only the actually done links are displayed.
     [Ralf S. Engelschall]

B
Ben Laurie 已提交
10691 10692 10693 10694 10695 10696
  *) Permit null encryption ciphersuites, used for authentication only. It used
     to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
     It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
     encryption.
     [Ben Laurie]

10697 10698 10699 10700 10701 10702
  *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
     signed attributes when verifying signatures (this would break them), 
     the detached data encoding was wrong and public keys obtained using
     X509_get_pubkey() weren't freed.
     [Steve Henson]

10703 10704 10705 10706 10707 10708
  *) Add text documentation for the BUFFER functions. Also added a work around
     to a Win95 console bug. This was triggered by the password read stuff: the
     last character typed gets carried over to the next fread(). If you were 
     generating a new cert request using 'req' for example then the last
     character of the passphrase would be CR which would then enter the first
     field as blank.
10709 10710
     [Steve Henson]

10711 10712 10713 10714 10715 10716
  *) Added the new `Includes OpenSSL Cryptography Software' button as
     doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
     button and can be used by applications based on OpenSSL to show the
     relationship to the OpenSSL project.  
     [Ralf S. Engelschall]

10717 10718 10719 10720
  *) Remove confusing variables in function signatures in files
     ssl/ssl_lib.c and ssl/ssl.h.
     [Lennart Bong <lob@kulthea.stacken.kth.se>]

10721 10722 10723
  *) Don't install bss_file.c under PREFIX/include/
     [Lennart Bong <lob@kulthea.stacken.kth.se>]

10724 10725 10726 10727 10728 10729 10730
  *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
     functions that return function pointers and has support for NT specific
     stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
     #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
     unsigned to signed types: this was killing the Win32 compile.
     [Steve Henson]

10731 10732 10733 10734 10735
  *) Add new certificate file to stack functions,
     SSL_add_dir_cert_subjects_to_stack() and
     SSL_add_file_cert_subjects_to_stack().  These largely supplant
     SSL_load_client_CA_file(), and can be used to add multiple certs easily
     to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
10736 10737 10738 10739
     This means that Apache-SSL and similar packages don't have to mess around
     to add as many CAs as they want to the preferred list.
     [Ben Laurie]

10740 10741 10742 10743 10744
  *) Experiment with doxygen documentation. Currently only partially applied to
     ssl/ssl_lib.c.
     See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
     openssl.doxy as the configuration file.
     [Ben Laurie]
10745 10746 10747
  
  *) Get rid of remaining C++-style comments which strict C compilers hate.
     [Ralf S. Engelschall, pointed out by Carlos Amengual]
10748

10749 10750 10751 10752
  *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
     compiled in by default: it has problems with large keys.
     [Steve Henson]

10753 10754 10755 10756 10757 10758 10759 10760 10761 10762 10763 10764 10765 10766 10767 10768 10769 10770
  *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
     DH private keys and/or callback functions which directly correspond to
     their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
     is needed for applications which have to configure certificates on a
     per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
     (e.g. s_server). 
        For the RSA certificate situation is makes no difference, but
     for the DSA certificate situation this fixes the "no shared cipher"
     problem where the OpenSSL cipher selection procedure failed because the
     temporary keys were not overtaken from the context and the API provided
     no way to reconfigure them. 
        The new functions now let applications reconfigure the stuff and they
     are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
     SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback.  Additionally a new
     non-public-API function ssl_cert_instantiate() is used as a helper
     function and also to reduce code redundancy inside ssl_rsa.c.
     [Ralf S. Engelschall]

10771 10772 10773 10774 10775
  *) Move s_server -dcert and -dkey options out of the undocumented feature
     area because they are useful for the DSA situation and should be
     recognized by the users.
     [Ralf S. Engelschall]

10776 10777 10778 10779 10780 10781
  *) Fix the cipher decision scheme for export ciphers: the export bits are
     *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
     SSL_EXP_MASK.  So, the original variable has to be used instead of the
     already masked variable.
     [Richard Levitte <levitte@stacken.kth.se>]

10782 10783 10784
  *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
     [Richard Levitte <levitte@stacken.kth.se>]

10785 10786 10787 10788 10789
  *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
     from `int' to `unsigned int' because it's a length and initialized by
     EVP_DigestFinal() which expects an `unsigned int *'.
     [Richard Levitte <levitte@stacken.kth.se>]

10790 10791 10792 10793
  *) Don't hard-code path to Perl interpreter on shebang line of Configure
     script. Instead use the usual Shell->Perl transition trick.
     [Ralf S. Engelschall]

10794 10795 10796 10797 10798 10799 10800 10801 10802 10803 10804
  *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
     (in addition to RSA certificates) to match the behaviour of `openssl dsa
     -noout -modulus' as it's already the case for `openssl rsa -noout
     -modulus'.  For RSA the -modulus is the real "modulus" while for DSA
     currently the public key is printed (a decision which was already done by
     `openssl dsa -modulus' in the past) which serves a similar purpose.
     Additionally the NO_RSA no longer completely removes the whole -modulus
     option; it now only avoids using the RSA stuff. Same applies to NO_DSA
     now, too.
     [Ralf S.  Engelschall]

B
Ben Laurie 已提交
10805 10806 10807 10808
  *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
     BIO. See the source (crypto/evp/bio_ok.c) for more info.
     [Arne Ansper <arne@ats.cyber.ee>]

10809 10810 10811 10812 10813
  *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
     to be added. Now both 'req' and 'ca' can use new objects defined in the
     config file.
     [Steve Henson]

B
Ben Laurie 已提交
10814 10815 10816
  *) Add cool BIO that does syslog (or event log on NT).
     [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]

10817 10818 10819 10820 10821 10822
  *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
     TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
     TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
     Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
     [Ben Laurie]

10823 10824 10825
  *) Add preliminary config info for new extension code.
     [Steve Henson]

10826 10827 10828
  *) Make RSA_NO_PADDING really use no padding.
     [Ulf Moeller <ulf@fitug.de>]

10829 10830 10831
  *) Generate errors when private/public key check is done.
     [Ben Laurie]

10832 10833 10834 10835
  *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
     for some CRL extensions and new objects added.
     [Steve Henson]

10836 10837 10838 10839
  *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
     key usage extension and fuller support for authority key id.
     [Steve Henson]

B
Ben Laurie 已提交
10840 10841 10842 10843 10844 10845 10846 10847 10848
  *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
     padding method for RSA, which is recommended for new applications in PKCS
     #1 v2.0 (RFC 2437, October 1998).
     OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
     foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
     against Bleichbacher's attack on RSA.
     [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
      Ben Laurie]

10849 10850 10851 10852 10853 10854 10855 10856 10857
  *) Updates to the new SSL compression code
     [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]

  *) Fix so that the version number in the master secret, when passed
     via RSA, checks that if TLS was proposed, but we roll back to SSLv3
     (because the server will not accept higher), that the version number
     is 0x03,0x01, not 0x03,0x00
     [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]

10858 10859
  *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
     leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
10860
     in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
10861 10862
     [Steve Henson]

10863 10864 10865
  *) Support for RAW extensions where an arbitrary extension can be
     created by including its DER encoding. See apps/openssl.cnf for
     an example.
10866
     [Steve Henson]
10867

10868 10869 10870 10871
  *) Make sure latest Perl versions don't interpret some generated C array
     code as Perl array code in the crypto/err/err_genc.pl script.
     [Lars Weber <3weber@informatik.uni-hamburg.de>]

10872 10873 10874 10875 10876 10877
  *) Modify ms/do_ms.bat to not generate assembly language makefiles since
     not many people have the assembler. Various Win32 compilation fixes and
     update to the INSTALL.W32 file with (hopefully) more accurate Win32
     build instructions.
     [Steve Henson]

10878 10879 10880 10881 10882 10883
  *) Modify configure script 'Configure' to automatically create crypto/date.h
     file under Win32 and also build pem.h from pem.org. New script
     util/mkfiles.pl to create the MINFO file on environments that can't do a
     'make files': perl util/mkfiles.pl >MINFO should work.
     [Steve Henson]

10884 10885 10886 10887 10888 10889
  *) Major rework of DES function declarations, in the pursuit of correctness
     and purity. As a result, many evil casts evaporated, and some weirdness,
     too. You may find this causes warnings in your code. Zapping your evil
     casts will probably fix them. Mostly.
     [Ben Laurie]

10890 10891 10892 10893 10894 10895
  *) Fix for a typo in asn1.h. Bug fix to object creation script
     obj_dat.pl. It considered a zero in an object definition to mean
     "end of object": none of the objects in objects.h have any zeros
     so it wasn't spotted.
     [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]

B
Ben Laurie 已提交
10896 10897 10898 10899 10900 10901
  *) Add support for Triple DES Cipher Block Chaining with Output Feedback
     Masking (CBCM). In the absence of test vectors, the best I have been able
     to do is check that the decrypt undoes the encrypt, so far. Send me test
     vectors if you have them.
     [Ben Laurie]

R
Ralf S. Engelschall 已提交
10902
  *) Correct calculation of key length for export ciphers (too much space was
10903 10904 10905
     allocated for null ciphers). This has not been tested!
     [Ben Laurie]

10906 10907 10908 10909 10910 10911 10912
  *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
     message is now correct (it understands "crypto" and "ssl" on its
     command line). There is also now an "update" option. This will update
     the util/ssleay.num and util/libeay.num files with any new functions.
     If you do a: 
     perl util/mkdef.pl crypto ssl update
     it will update them.
10913
     [Steve Henson]
10914

10915 10916 10917 10918 10919 10920 10921 10922 10923
  *) Overhauled the Perl interface (perl/*):
     - ported BN stuff to OpenSSL's different BN library
     - made the perl/ source tree CVS-aware
     - renamed the package from SSLeay to OpenSSL (the files still contain
       their history because I've copied them in the repository)
     - removed obsolete files (the test scripts will be replaced
       by better Test::Harness variants in the future)
     [Ralf S. Engelschall]

R
Ralf S. Engelschall 已提交
10924 10925 10926 10927 10928 10929 10930 10931 10932 10933 10934
  *) First cut for a very conservative source tree cleanup:
     1. merge various obsolete readme texts into doc/ssleay.txt
     where we collect the old documents and readme texts.
     2. remove the first part of files where I'm already sure that we no
     longer need them because of three reasons: either they are just temporary
     files which were left by Eric or they are preserved original files where
     I've verified that the diff is also available in the CVS via "cvs diff
     -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
     the crypto/md/ stuff).
     [Ralf S. Engelschall]

10935 10936 10937 10938 10939 10940 10941
  *) More extension code. Incomplete support for subject and issuer alt
     name, issuer and authority key id. Change the i2v function parameters
     and add an extra 'crl' parameter in the X509V3_CTX structure: guess
     what that's for :-) Fix to ASN1 macro which messed up
     IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
     [Steve Henson]

10942 10943 10944 10945
  *) Preliminary support for ENUMERATED type. This is largely copied from the
     INTEGER code.
     [Steve Henson]

10946 10947 10948
  *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
     [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]

10949 10950 10951
  *) Make sure `make rehash' target really finds the `openssl' program.
     [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]

10952 10953 10954 10955
  *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
     like to hear about it if this slows down other processors.
     [Ben Laurie]

10956 10957 10958
  *) Add CygWin32 platform information to Configure script.
     [Alan Batie <batie@aahz.jf.intel.com>]

10959 10960
  *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
     [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10961 10962 10963
  
  *) New program nseq to manipulate netscape certificate sequences
     [Steve Henson]
R
Ralf S. Engelschall 已提交
10964

10965 10966 10967 10968
  *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
     few typos.
     [Steve Henson]

10969 10970 10971 10972 10973
  *) Fixes to BN code.  Previously the default was to define BN_RECURSION
     but the BN code had some problems that would cause failures when
     doing certificate verification and some other functions.
     [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]

10974 10975 10976
  *) Add ASN1 and PEM code to support netscape certificate sequences.
     [Steve Henson]

10977 10978 10979
  *) Add ASN1 and PEM code to support netscape certificate sequences.
     [Steve Henson]

10980 10981 10982
  *) Add several PKIX and private extended key usage OIDs.
     [Steve Henson]

10983 10984 10985 10986
  *) Modify the 'ca' program to handle the new extension code. Modify
     openssl.cnf for new extension format, add comments.
     [Steve Henson]

10987 10988 10989 10990 10991
  *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
     and add a sample to openssl.cnf so req -x509 now adds appropriate
     CA extensions.
     [Steve Henson]

10992 10993
  *) Continued X509 V3 changes. Add to other makefiles, integrate with the
     error code, add initial support to X509_print() and x509 application.
10994
     [Steve Henson]
10995

10996
  *) Takes a deep breath and start adding X509 V3 extension support code. Add
10997 10998 10999 11000
     files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
     stuff is currently isolated and isn't even compiled yet.
     [Steve Henson]

11001 11002 11003 11004 11005 11006 11007
  *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
     ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
     Removed the versions check from X509 routines when loading extensions:
     this allows certain broken certificates that don't set the version
     properly to be processed.
     [Steve Henson]

11008 11009 11010 11011 11012
  *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
     Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
     can still be regenerated with "make depend".
     [Ben Laurie]

B
Ben Laurie 已提交
11013 11014 11015
  *) Spelling mistake in C version of CAST-128.
     [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]

11016 11017 11018 11019 11020 11021 11022 11023 11024
  *) Changes to the error generation code. The perl script err-code.pl 
     now reads in the old error codes and retains the old numbers, only
     adding new ones if necessary. It also only changes the .err files if new
     codes are added. The makefiles have been modified to only insert errors
     when needed (to avoid needlessly modifying header files). This is done
     by only inserting errors if the .err file is newer than the auto generated
     C file. To rebuild all the error codes from scratch (the old behaviour)
     either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
     or delete all the .err files.
11025
     [Steve Henson]
11026

11027 11028 11029 11030 11031 11032 11033 11034
  *) CAST-128 was incorrectly implemented for short keys. The C version has
     been fixed, but is untested. The assembler versions are also fixed, but
     new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
     to regenerate it if needed.
     [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
      Hagino <itojun@kame.net>]

  *) File was opened incorrectly in randfile.c.
11035
     [Ulf Möller <ulf@fitug.de>]
11036

11037 11038 11039 11040 11041 11042 11043
  *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
     functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
     GeneralizedTime. ASN1_TIME is the proper type used in certificates et
     al: it's just almost always a UTCTime. Note this patch adds new error
     codes so do a "make errors" if there are problems.
     [Steve Henson]

B
Ben Laurie 已提交
11044
  *) Correct Linux 1 recognition in config.
11045
     [Ulf Möller <ulf@fitug.de>]
B
Ben Laurie 已提交
11046

B
Ben Laurie 已提交
11047 11048 11049
  *) Remove pointless MD5 hash when using DSA keys in ca.
     [Anonymous <nobody@replay.com>]

11050 11051 11052 11053 11054
  *) Generate an error if given an empty string as a cert directory. Also
     generate an error if handed NULL (previously returned 0 to indicate an
     error, but didn't set one).
     [Ben Laurie, reported by Anonymous <nobody@replay.com>]

B
Ben Laurie 已提交
11055 11056 11057
  *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
     [Ben Laurie]

11058 11059 11060 11061
  *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
     parameters. This was causing a warning which killed off the Win32 compile.
     [Steve Henson]

D
 
Dr. Stephen Henson 已提交
11062 11063 11064
  *) Remove C++ style comments from crypto/bn/bn_local.h.
     [Neil Costigan <neil.costigan@celocom.com>]

11065 11066 11067 11068 11069 11070 11071 11072
  *) The function OBJ_txt2nid was broken. It was supposed to return a nid
     based on a text string, looking up short and long names and finally
     "dot" format. The "dot" format stuff didn't work. Added new function
     OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 
     OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
     OID is not part of the table.
     [Steve Henson]

11073 11074 11075 11076
  *) Add prototypes to X509 lookup/verify methods, fixing a bug in
     X509_LOOKUP_by_alias().
     [Ben Laurie]

B
Ben Laurie 已提交
11077 11078 11079
  *) Sort openssl functions by name.
     [Ben Laurie]

11080 11081 11082 11083 11084
  *) Get the gendsa program working (hopefully) and add it to app list. Remove
     encryption from sample DSA keys (in case anyone is interested the password
     was "1234").
     [Steve Henson]

B
Ben Laurie 已提交
11085 11086 11087
  *) Make _all_ *_free functions accept a NULL pointer.
     [Frans Heymans <fheymans@isaserver.be>]

B
Ben Laurie 已提交
11088 11089 11090 11091
  *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
     NULL pointers.
     [Anonymous <nobody@replay.com>]

B
Ben Laurie 已提交
11092 11093 11094
  *) s_server should send the CAfile as acceptable CAs, not its own cert.
     [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]

B
Ben Laurie 已提交
11095 11096 11097
  *) Don't blow it for numeric -newkey arguments to apps/req.
     [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]

B
Ben Laurie 已提交
11098 11099 11100
  *) Temp key "for export" tests were wrong in s3_srvr.c.
     [Anonymous <nobody@replay.com>]

11101 11102 11103 11104
  *) Add prototype for temp key callback functions
     SSL_CTX_set_tmp_{rsa,dh}_callback().
     [Ben Laurie]

11105 11106
  *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
     DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
11107
     [Steve Henson]
11108

B
Ben Laurie 已提交
11109 11110 11111
  *) X509_name_add_entry() freed the wrong thing after an error.
     [Arne Ansper <arne@ats.cyber.ee>]

B
Ben Laurie 已提交
11112 11113 11114
  *) rsa_eay.c would attempt to free a NULL context.
     [Arne Ansper <arne@ats.cyber.ee>]

11115 11116 11117
  *) BIO_s_socket() had a broken should_retry() on Windoze.
     [Arne Ansper <arne@ats.cyber.ee>]

B
Ben Laurie 已提交
11118 11119 11120
  *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
     [Arne Ansper <arne@ats.cyber.ee>]

11121 11122 11123 11124 11125
  *) Make sure the already existing X509_STORE->depth variable is initialized
     in X509_STORE_new(), but document the fact that this variable is still
     unused in the certificate verification process.
     [Ralf S. Engelschall]

11126
  *) Fix the various library and apps files to free up pkeys obtained from
11127
     X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
11128 11129
     [Steve Henson]

B
Ben Laurie 已提交
11130 11131 11132 11133
  *) Fix reference counting in X509_PUBKEY_get(). This makes
     demos/maurice/example2.c work, amongst others, probably.
     [Steve Henson and Ben Laurie]

11134 11135 11136 11137
  *) First cut of a cleanup for apps/. First the `ssleay' program is now named
     `openssl' and second, the shortcut symlinks for the `openssl <command>'
     are no longer created. This way we have a single and consistent command
     line interface `openssl <command>', similar to `cvs <command>'.
B
Ben Laurie 已提交
11138
     [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
11139

11140 11141 11142 11143
  *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
     BIT STRING wrapper always have zero unused bits.
     [Steve Henson]

11144 11145 11146
  *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
     [Steve Henson]

11147 11148 11149
  *) Make the top-level INSTALL documentation easier to understand.
     [Paul Sutton]

11150 11151 11152
  *) Makefiles updated to exit if an error occurs in a sub-directory
     make (including if user presses ^C) [Paul Sutton]

B
Ben Laurie 已提交
11153 11154 11155 11156 11157 11158 11159 11160 11161
  *) Make Montgomery context stuff explicit in RSA data structure.
     [Ben Laurie]

  *) Fix build order of pem and err to allow for generated pem.h.
     [Ben Laurie]

  *) Fix renumbering bug in X509_NAME_delete_entry().
     [Ben Laurie]

S
stephen 已提交
11162 11163 11164 11165 11166 11167 11168 11169
  *) Enhanced the err-ins.pl script so it makes the error library number 
     global and can add a library name. This is needed for external ASN1 and
     other error libraries.
     [Steve Henson]

  *) Fixed sk_insert which never worked properly.
     [Steve Henson]

11170
  *) Fix ASN1 macros so they can handle indefinite length constructed 
S
stephen 已提交
11171 11172 11173 11174
     EXPLICIT tags. Some non standard certificates use these: they can now
     be read in.
     [Steve Henson]

11175 11176 11177
  *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
     into a single doc/ssleay.txt bundle. This way the information is still
     preserved but no longer messes up this directory. Now it's new room for
11178
     the new set of documentation files.
11179 11180
     [Ralf S. Engelschall]

11181 11182 11183 11184 11185 11186 11187 11188 11189
  *) SETs were incorrectly DER encoded. This was a major pain, because they
     shared code with SEQUENCEs, which aren't coded the same. This means that
     almost everything to do with SETs or SEQUENCEs has either changed name or
     number of arguments.
     [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]

  *) Fix test data to work with the above.
     [Ben Laurie]

11190 11191
  *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
     was already fixed by Eric for 0.9.1 it seems.
11192
     [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
11193

B
Ben Laurie 已提交
11194 11195 11196
  *) Autodetect FreeBSD3.
     [Ben Laurie]

11197 11198 11199 11200 11201 11202 11203
  *) Fix various bugs in Configure. This affects the following platforms:
     nextstep
     ncr-scde
     unixware-2.0
     unixware-2.0-pentium
     sco5-cc.
     [Ben Laurie]
R
Ralf S. Engelschall 已提交
11204

B
Ben Laurie 已提交
11205 11206 11207 11208 11209 11210 11211
  *) Eliminate generated files from CVS. Reorder tests to regenerate files
     before they are needed.
     [Ben Laurie]

  *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
     [Ben Laurie]

11212 11213

 Changes between 0.9.1b and 0.9.1c  [23-Dec-1998]
R
Ralf S. Engelschall 已提交
11214

R
Ralf S. Engelschall 已提交
11215 11216
  *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 
     changed SSLeay to OpenSSL in version strings.
R
Ralf S. Engelschall 已提交
11217
     [Ralf S. Engelschall]
R
Ralf S. Engelschall 已提交
11218 11219 11220
  
  *) Some fixups to the top-level documents.
     [Paul Sutton]
11221

11222 11223 11224 11225 11226 11227
  *) Fixed the nasty bug where rsaref.h was not found under compile-time
     because the symlink to include/ was missing.
     [Ralf S. Engelschall]

  *) Incorporated the popular no-RSA/DSA-only patches 
     which allow to compile a RSA-free SSLeay.
R
Ralf S. Engelschall 已提交
11228
     [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
11229 11230 11231 11232 11233 11234 11235 11236

  *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
     when "ssleay" is still not found.
     [Ralf S. Engelschall]

  *) Added more platforms to Configure: Cray T3E, HPUX 11, 
     [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]

11237 11238 11239 11240 11241 11242 11243 11244 11245 11246 11247 11248 11249 11250 11251 11252 11253 11254 11255 11256 11257 11258 11259 11260 11261 11262 11263
  *) Updated the README file.
     [Ralf S. Engelschall]

  *) Added various .cvsignore files in the CVS repository subdirs
     to make a "cvs update" really silent.
     [Ralf S. Engelschall]

  *) Recompiled the error-definition header files and added
     missing symbols to the Win32 linker tables.
     [Ralf S. Engelschall]

  *) Cleaned up the top-level documents;
     o new files: CHANGES and LICENSE
     o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 
     o merged COPYRIGHT into LICENSE
     o removed obsolete TODO file
     o renamed MICROSOFT to INSTALL.W32
     [Ralf S. Engelschall]

  *) Removed dummy files from the 0.9.1b source tree: 
     crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
     crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
     crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
     crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
     util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
     [Ralf S. Engelschall]

11264
  *) Added various platform portability fixes.
R
Ralf S. Engelschall 已提交
11265
     [Mark J. Cox]
11266

R
Ralf S. Engelschall 已提交
11267
  *) The Genesis of the OpenSSL rpject:
11268
     We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
11269
     Young and Tim J. Hudson created while they were working for C2Net until
11270
     summer 1998.
R
Ralf S. Engelschall 已提交
11271
     [The OpenSSL Project]
11272
 
11273 11274

 Changes between 0.9.0b and 0.9.1b  [not released]
11275 11276 11277 11278 11279 11280 11281 11282 11283 11284 11285 11286 11287 11288 11289 11290 11291 11292 11293 11294 11295 11296 11297 11298 11299 11300 11301 11302 11303 11304 11305 11306 11307 11308 11309 11310 11311 11312 11313 11314 11315 11316 11317 11318 11319 11320 11321 11322 11323 11324 11325 11326 11327 11328 11329 11330 11331 11332 11333 11334 11335 11336 11337 11338 11339 11340 11341 11342 11343 11344 11345 11346 11347 11348 11349 11350 11351 11352 11353 11354 11355 11356 11357 11358 11359 11360 11361 11362 11363 11364 11365 11366 11367 11368 11369 11370 11371 11372 11373 11374

  *) Updated a few CA certificates under certs/
     [Eric A. Young]

  *) Changed some BIGNUM api stuff.
     [Eric A. Young]

  *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 
     DGUX x86, Linux Alpha, etc.
     [Eric A. Young]

  *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 
     RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
     available).
     [Eric A. Young]

  *) Add -strparse option to asn1pars program which parses nested 
     binary structures 
     [Dr Stephen Henson <shenson@bigfoot.com>]

  *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
     [Eric A. Young]

  *) DSA fix for "ca" program.
     [Eric A. Young]

  *) Added "-genkey" option to "dsaparam" program.
     [Eric A. Young]

  *) Added RIPE MD160 (rmd160) message digest.
     [Eric A. Young]

  *) Added -a (all) option to "ssleay version" command.
     [Eric A. Young]

  *) Added PLATFORM define which is the id given to Configure.
     [Eric A. Young]

  *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
     [Eric A. Young]

  *) Extended the ASN.1 parser routines.
     [Eric A. Young]

  *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
     [Eric A. Young]

  *) Added a BN_CTX to the BN library.
     [Eric A. Young]

  *) Fixed the weak key values in DES library
     [Eric A. Young]

  *) Changed API in EVP library for cipher aliases.
     [Eric A. Young]

  *) Added support for RC2/64bit cipher.
     [Eric A. Young]

  *) Converted the lhash library to the crypto/mem.c functions.
     [Eric A. Young]

  *) Added more recognized ASN.1 object ids.
     [Eric A. Young]

  *) Added more RSA padding checks for SSL/TLS.
     [Eric A. Young]

  *) Added BIO proxy/filter functionality.
     [Eric A. Young]

  *) Added extra_certs to SSL_CTX which can be used
     send extra CA certificates to the client in the CA cert chain sending
     process. It can be configured with SSL_CTX_add_extra_chain_cert().
     [Eric A. Young]

  *) Now Fortezza is denied in the authentication phase because
     this is key exchange mechanism is not supported by SSLeay at all.
     [Eric A. Young]

  *) Additional PKCS1 checks.
     [Eric A. Young]

  *) Support the string "TLSv1" for all TLS v1 ciphers.
     [Eric A. Young]

  *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
     ex_data index of the SSL context in the X509_STORE_CTX ex_data.
     [Eric A. Young]

  *) Fixed a few memory leaks.
     [Eric A. Young]

  *) Fixed various code and comment typos.
     [Eric A. Young]

  *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 
     bytes sent in the client random.
     [Edward Bishop <ebishop@spyglass.com>]