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Ralf S. Engelschall 已提交
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 OpenSSL CHANGES
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 _______________

5
 Changes between 0.9.7c and 0.9.8  [xx XXX xxxx]
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  *) Reorganise PKCS#7 code to separate the digest location functionality
     into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
     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.
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     [Steve Henson]

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

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  *) 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]

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  *) 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)]

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  *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
     curve secp160r1 to the tests.
     [Douglas Stebila (Sun Microsystems Laboratories)]

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

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

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  *) Add support for STORE in ENGINE.
     [Richard Levitte]

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  *) 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]

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  *) 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]

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  *) 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]

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  *) 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]

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  *) 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.
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     [Richard Levitte]
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  *) 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]

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  *) 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]

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  *) 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]

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  *) Generate muti valued AVAs using '+' notation in config files for
     req and dirName.
     [Steve Henson]

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

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

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  *) Support for policyMappings certificate extension.
     [Steve Henson]

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  *) 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]

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  *) 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]

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

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

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  *) 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.

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     This is done with a new flag PKCS7_STREAM. When this flag is set
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     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]

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  *) 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]

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  *) In crypto/ec/ec_mult.c, implement fast point multiplication with
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     precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
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     will now compute a table of multiples of the generator that
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     makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
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     faster (notably in the case of a single point multiplication,
     scalar * generator).
     [Nils Larsch, Bodo Moeller]

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  *) 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]

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  *) 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]

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  *) 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]

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  *) 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
     also be overriden by providing the appropriate method callbacks.
     [Geoff Thorpe]

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  *) 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.
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     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.
           */

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     [Geoff Thorpe]

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  *) 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]

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  *) Add the ASN.1 structures and functions for CertificatePair, which
     is defined as follows (according to X.509_4thEditionDraftV6.pdf):

     CertificatePair ::= SEQUENCE {
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        forward		[0]	Certificate OPTIONAL,
        reverse		[1]	Certificate OPTIONAL,
        -- at least one of the pair shall be present -- }
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     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]

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  *) Make it possible to inhibit symlinking of shared libraries in
     Makefile.shared, for Cygwin's sake.
     [Richard Levitte]

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  *) Extend the BIGNUM API by creating new macros that behave like
     functions

          void BN_set_sign(BIGNUM *a, int neg);
          int BN_get_sign(const BIGNUM *a);

     and avoid the need to access 'a->neg' directly in applications.
     [Nils Larsch  <nla@trustcenter.de>]

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  *) 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>]

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  *) Add new lock type (CRYPTO_LOCK_BN).
     [Bodo Moeller]

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  *) 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
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     engines, but that can be overriden at configure time through
     the usual use of --prefix and/or --openssldir, and at run
     time with the environment variable OPENSSL_ENGINES.
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     [Geoff Thorpe and Richard Levitte]

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  *) Add Makefile.shared, a helper makefile to build shared
     libraries.  Addapt Makefile.org.
     [Richard Levitte]

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  *) Add version info to Win32 DLLs.
     [Peter 'Luna' Runestig" <peter@runestig.com>]

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  *) 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]

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  *) 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]

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  *) Let 'openssl req' fail if an argument to '-newkey' is not
     recognized instead of using RSA as a default.
     [Bodo Moeller]

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  *) 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)]

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  *) Add ECDH engine support.
     [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]

  *) Add ECDH in new directory crypto/ecdh/.
     [Douglas Stebila (Sun Microsystems Laboratories)]

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  *) Let BN_rand_range() abort with an error after 100 iterations
     without success (which indicates a broken PRNG).
     [Bodo Moeller]

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  *) 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]

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  *) 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.
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     (For simplicity, the '..._GFp' prefix has been dropped from
     various internal method names.)
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     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)]

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  *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
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     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)]

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  *) 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.

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     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).
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     [Sheueling Chang Shantz and Douglas Stebila
     (Sun Microsystems Laboratories)]

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  *) 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>]

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  *) 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>]

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  *) 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:
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     - Curves (i.e., groups) are encoded explicitly unless asn1_flag
       has been set to OPENSSL_EC_NAMED_CURVE.
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     - Points are encoded in uncompressed form by default; options for
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       asn1_for are as for point2oct, namely
          POINT_CONVERSION_COMPRESSED
          POINT_CONVERSION_UNCOMPRESSED
          POINT_CONVERSION_HYBRID
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     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).
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     [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>]

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  *) 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>]

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  *) 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.
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     [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
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  *) 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]

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  *) 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>]

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  *) Add ECDSA in new directory crypto/ecdsa/.

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     Add applications 'openssl ecparam' and 'openssl ecdsa'
     (these are based on 'openssl dsaparam' and 'openssl dsa').
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     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
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       extracted before the specific public key;
     - ECDSA engine support has been added.
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     [Nils Larsch <nla@trustcenter.de>]
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  *) Include some named elliptic curves, and add OIDs from X9.62,
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     SECG, and WAP/WTLS.  Each curve can be obtained from the new
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     function
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          EC_GROUP_new_by_nid(),
     and the list of available named curves can be obtained with
          EC_get_builtin_curves().
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     Also add a 'curve_name' member to EC_GROUP objects, which can be
     accessed via
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         EC_GROUP_set_nid()
         EC_GROUP_get_nid()
     [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
 
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  *) 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]

570 571 572 573
 Changes between 0.9.7c and 0.9.7d  [xx XXX XXXX]
  *) Use the correct content when signing type "other".
     [Steve Henson]

574 575 576 577 578 579 580 581 582 583 584 585 586
 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
     invalid tags (CAN-2003-0543 and CAN-2003-0544).
     
     Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).

     If verify callback ignores invalid public key errors don't try to check
     certificate signature with the NULL public key.

     [Steve Henson]
587

588 589 590 591
  *) New -ignore_err option in ocsp application to stop the server
     exiting on the first error in a request.
     [Steve Henson]

592 593 594 595 596
  *) 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]

597 598 599 600 601 602 603 604 605
  *) 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]

606 607 608 609
  *) Change AES_cbc_encrypt() so it outputs exact multiple of
     blocks during encryption.
     [Richard Levitte]

610 611 612 613 614 615 616
  *) 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]

617 618 619 620 621 622 623 624 625
  *) 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]
626

627 628 629 630 631 632
  *) 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]

633 634 635 636
  *) 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.
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     [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
638 639 640 641

  *) 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
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     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).
648 649
     [Bodo Moeller]

650 651 652
yet to be integrated into this CVS branch:
- Geoff's ENGINE_set_default() fix

653 654 655
  *) Target "mingw" now allows native Windows code to be generated in
     the Cygwin environment as well as with the MinGW compiler.
     [Ulf Moeller] 
656

657 658 659 660 661 662 663 664 665 666 667
 Changes between 0.9.7 and 0.9.7a  [19 Feb 2003]

  *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
     via timing by performing a MAC computation even if incorrrect
     block cipher padding has been found.  This is a countermeasure
     against active attacks where the attacker has to distinguish
     between bad padding and a MAC verification error. (CAN-2003-0078)

     [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
     Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
     Martin Vuagnoux (EPFL, Ilion)]
668

669 670 671 672 673 674 675 676 677 678 679
  *) 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]

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  *) Add support for FreeBSD on IA64.
     [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]

683 684 685 686 687 688
  *) 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]

689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706
  *) 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]

707 708 709
  *) Add the possibility to build without the ENGINE framework.
     [Steven Reddie <smr@essemer.com.au> via Richard Levitte]

710 711 712 713
  *) Under Win32 gmtime() can return NULL: check return value in
     OPENSSL_gmtime(). Add error code for case where gmtime() fails.
     [Steve Henson]

714 715 716 717 718 719
  *) 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]

720 721 722 723 724 725 726 727 728
  *) 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]

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  *) IA-32 assembler support enhancements: unified ELF targets, support
     for SCO/Caldera platforms, fix for Cygwin shared build.
     [Andy Polyakov]

733 734 735 736
  *) 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>]
737

738
 Changes between 0.9.6h and 0.9.7  [31 Dec 2002]
739

740 741 742
  [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
  OpenSSL 0.9.7.]

743 744 745 746 747 748 749 750 751
  *) 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]

752 753 754 755 756
  *) 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]

757
  *) The hw_ncipher.c engine requires dynamic locks.  Unfortunately, it
758 759
     seems that in spite of existing for more than a year, many application
     author have done nothing to provide the necessary callbacks, which
760 761 762 763 764 765 766 767 768 769 770
     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]

771 772 773 774 775
  *) 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]

776 777 778 779 780
  *) 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]

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  *) 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]

785 786 787 788 789
  *) 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]

790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843
  *) 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)]

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  *) New OPENSSL_assert() macro (similar to assert(), but enabled
     unconditionally).
     [Ben Laurie (CHATS)]

848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874
  *) 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)]

875 876 877 878 879 880 881
  *) 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.
     (CAN-2002-0657)
     [Ben Laurie (CHATS)]
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883 884 885
  *) Change the SSL kerb5 codes to match RFC 2712.
     [Richard Levitte]

886 887 888
  *) Make -nameopt work fully for req and add -reqopt switch.
     [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]

889 890 891
  *) The "block size" for block ciphers in CFB and OFB mode should be 1.
     [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]

892 893 894 895 896
  *) 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>]

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  *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
898 899
     to allow version independent disabling of normally unselected ciphers,
     which may be activated as a side-effect of selecting a single cipher.
B
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     (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.)
904 905
     [Lutz Jaenicke, Bodo Moeller]

906 907 908 909 910 911 912 913
  *) 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.
914 915
	mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
	cd objtree/"`uname -s`-`uname -r`-`uname -m`"
916
	(cd $OPENSSL_SOURCE; find . -type f) | while read F; do
917 918 919 920 921 922 923 924 925
		mkdir -p `dirname $F`
		ln -s $OPENSSL_SOURCE/$F $F
	done

     To be absolutely sure not to disturb the source tree, a "make clean"
     is a good thing.  If it isn't successfull, don't worry about it,
     it probably means the source directory is very clean.
     [Richard Levitte]

926 927 928 929 930 931
  *) 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.
     [Götz Babin-Ebell <babinebell@trustcenter.de>]

B
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932 933 934
  *) Improve diagnostics in file reading and command-line digests.
     [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]

R
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935 936 937 938
  *) Add AES modes CFB and OFB to the object database.  Correct an
     error in AES-CFB decryption.
     [Richard Levitte]

D
 
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939 940 941 942 943 944 945 946
  *) 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
 
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947 948 949 950
  *) 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
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952 953 954 955
  *) 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]

956
  *) Make object definitions compliant to LDAP (RFC2256): SN is the short
L
Lutz Jänicke 已提交
957 958 959
     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".
960 961
     The OID for unique identifiers in X509 certificates is
     x500UniqueIdentifier, not uniqueIdentifier.
L
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962
     Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
B
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963
     [Lutz Jaenicke]
964

965
  *) Add an "init" command to the ENGINE config module and auto initialize
D
 
Dr. Stephen Henson 已提交
966 967 968 969 970 971 972
     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]

973
  *) Fix the 'app_verify_callback' interface so that the user-defined
974 975 976 977 978 979 980 981 982 983 984 985 986 987 988
     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>]

989
  *) Added the '4758cca' ENGINE to support IBM 4758 cards.
990 991
     [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]

992
  *) Add and OPENSSL_LOAD_CONF define which will cause
993 994 995 996 997 998 999 1000
     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]

1001
  *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1002 1003 1004
     Adjust NIDs and EVP layer.
     [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]

1005
  *) Config modules support in openssl utility.
D
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1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016

     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]

1017
  *) Move default behaviour from OPENSSL_config(). If appname is NULL
1018 1019 1020
     use "openssl_conf" if filename is NULL use default openssl config file.
     [Steve Henson]

1021
  *) Add an argument to OPENSSL_config() to allow the use of an alternative
1022 1023 1024 1025
     config section name. Add a new flag to tolerate a missing config file
     and move code to CONF_modules_load_file().
     [Steve Henson]

1026
  *) Support for crypto accelerator cards from Accelerated Encryption
1027 1028 1029 1030 1031
     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]

1032
  *) Support for SureWare crypto accelerator cards from Baltimore
1033 1034 1035 1036 1037
     Technologies.  (Use engine 'sureware')
     The support was copied from 0.9.6c [engine] and adapted
     to work with the new engine framework.
     [Richard Levitte]

1038
  *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1039 1040 1041
     make the newer ENGINE framework commands for the CHIL engine work.
     [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]

1042
  *) Make it possible to produce shared libraries on ReliantUNIX.
1043 1044
     [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]

1045
  *) Add the configuration target debug-linux-ppro.
1046 1047 1048 1049 1050 1051
     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]

1052
 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1053 1054
     [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]

1055
  *) Add -keyform to rsautl, and document -engine.
R
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1056 1057
     [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]

1058
  *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
B
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     BIO_R_NO_SUCH_FILE error code rather than the generic
     ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
     [Ben Laurie]

1063
  *) Add new functions
B
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          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]
        
1075
  *) default_algorithms option in ENGINE config module. This allows things
D
 
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     like:
     default_algorithms = ALL
     default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
     [Steve Henson]

1081
  *) Prelminary ENGINE config module.
D
 
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1082 1083
     [Steve Henson]

1084
  *) New experimental application configuration code.
D
 
Dr. Stephen Henson 已提交
1085 1086
     [Steve Henson]

1087
  *) Change the AES code to follow the same name structure as all other
1088 1089 1090 1091
     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]

1092
  *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
B
Ben Laurie 已提交
1093 1094
     [Ben Laurie and Theo de Raadt]

1095
  *) Add option to output public keys in req command.
1096 1097
     [Massimiliano Pala madwolf@openca.org]

1098
  *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1099
     (up to about 10% better than before for P-192 and P-224).
B
Bodo Möller 已提交
1100 1101
     [Bodo Moeller]

1102
  *) New functions/macros
1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128

          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]

1129
  *) Change the shared library support so shared libraries are built as
1130 1131 1132 1133 1134 1135 1136 1137 1138
     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]

1139
  *) Add support for Subject Information Access extension.
1140 1141
     [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]

1142
  *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1143 1144 1145 1146
     additional bytes when new memory had to be allocated, not just
     when reusing an existing buffer.
     [Bodo Moeller]

1147
  *) New command line and configuration option 'utf8' for the req command.
1148 1149 1150
     This allows field values to be specified as UTF8 strings.
     [Steve Henson]

1151
  *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1152 1153 1154
     runs for the former and machine-readable output for the latter.
     [Ben Laurie]

1155
  *) Add '-noemailDN' option to 'openssl ca'.  This prevents inclusion
1156 1157 1158 1159 1160
     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]

1161
  *) Change all functions with names starting with des_ to be starting
1162
     with DES_ instead.  Add wrappers that are compatible with libdes,
1163
     but are named _ossl_old_des_*.  Finally, add macros that map the
1164 1165 1166 1167
     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.
1168

1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181
     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.
1182 1183 1184 1185

     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
1186 1187
     will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
     default), and then completely removed.
1188 1189
     [Richard Levitte]

1190
  *) Test for certificates which contain unsupported critical extensions.
D
 
Dr. Stephen Henson 已提交
1191 1192 1193 1194 1195 1196 1197 1198
     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]

1199
  *) Modify the behaviour of EVP cipher functions in similar way to digests
1200 1201 1202
     to retain compatibility with existing code.
     [Steve Henson]

1203
  *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
D
Dr. Stephen Henson 已提交
1204 1205 1206 1207 1208 1209 1210 1211 1212 1213
     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
1214 1215
     [Steve Henson]

1216
  *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1217 1218 1219 1220
     so that complete 'Handshake' protocol structures are kept in memory
     instead of overwriting 'msg_type' and 'length' with 'body' data.
     [Bodo Moeller]

1221
  *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1222 1223
     [Massimo Santin via Richard Levitte]

1224
  *) Major restructuring to the underlying ENGINE code. This includes
1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245
     reduction of linker bloat, separation of pure "ENGINE" manipulation
     (initialisation, etc) from functionality dealing with implementations
     of specific crypto iterfaces. This change also introduces integrated
     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]

1246
  *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1247 1248
     [Steve Henson]

1249
  *) Change mkdef.pl to sort symbols that get the same entry number,
R
Richard Levitte 已提交
1250 1251 1252 1253
     and make sure the automatically generated functions ERR_load_*
     become part of libeay.num as well.
     [Richard Levitte]

1254
  *) New function SSL_renegotiate_pending().  This returns true once
1255 1256 1257 1258 1259 1260 1261 1262 1263
     renegotiation has been requested (either SSL_renegotiate() call
     or HelloRequest/ClientHello receveived from the peer) and becomes
     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]

1264
  *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1265 1266 1267
     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.
1268 1269 1270 1271

     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).
1272 1273
     [Bodo Moeller]

1274
  *) Add some demos for certificate and certificate request creation.
1275 1276
     [Steve Henson]

1277
  *) Make maximum certificate chain size accepted from the peer application
1278 1279 1280 1281
     settable (SSL*_get/set_max_cert_list()), as proposed by
     "Douglas E. Engert" <deengert@anl.gov>.
     [Lutz Jaenicke]

1282
  *) Add support for shared libraries for Unixware-7
1283
     (Boyd Lynn Gerber <gerberb@zenez.com>).
1284 1285
     [Lutz Jaenicke]

1286
  *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1287 1288 1289
     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
1290
     [Geoff Thorpe]
1291

1292
  *) Alter all existing ENGINE implementations (except "openssl" and
G
Geoff Thorpe 已提交
1293 1294 1295 1296 1297 1298 1299
     "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]

1300
  *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
G
Geoff Thorpe 已提交
1301 1302 1303 1304 1305 1306 1307 1308 1309
     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]

1310
  *) Make it possible to unload ranges of ERR strings with a new
1311 1312 1313
     "ERR_unload_strings" function.
     [Geoff Thorpe]

1314
  *) Add a copy() function to EVP_MD.
1315 1316
     [Ben Laurie]

1317
  *) Make EVP_MD routines take a context pointer instead of just the
U
ispell  
Ulf Möller 已提交
1318
     md_data void pointer.
1319 1320
     [Ben Laurie]

1321
  *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1322 1323 1324 1325 1326 1327 1328
     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]

1329
  *) As with "ERR", make it possible to replace the underlying "ex_data"
G
Geoff Thorpe 已提交
1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343
     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.
1344 1345 1346 1347

     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
1348 1349
     [Geoff Thorpe]

1350
  *) Make it possible to replace the underlying "ERR" functions such that the
G
Geoff Thorpe 已提交
1351 1352 1353 1354 1355 1356 1357 1358 1359 1360
     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]

1361
  *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1362 1363 1364 1365
     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.
1366 1367

     Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1368 1369
     [Geoff Thorpe]

1370
  *) Add EVP test program.
B
Ben Laurie 已提交
1371 1372
     [Ben Laurie]

1373
  *) Add symmetric cipher support to ENGINE. Expect the API to change!
1374 1375
     [Ben Laurie]

1376
  *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
D
 
Dr. Stephen Henson 已提交
1377 1378 1379 1380 1381 1382
     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]

1383
  *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1384
     bug workarounds. Rollback attack detection is a security feature.
B
Bodo Möller 已提交
1385
     The problem will only arise on OpenSSL servers when TLSv1 is not
1386 1387 1388 1389 1390
     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]

1391
  *) Rationalise EVP so it can be extended: don't include a union of
B
Bodo Möller 已提交
1392 1393
     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
1394 1395 1396 1397 1398 1399 1400 1401 1402 1403
     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 */

1404 1405
     [Ben Laurie]

1406
  *) Make DES key schedule conform to the usual scheme, as well as
B
Ben Laurie 已提交
1407 1408 1409
     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
1410 1411 1412 1413 1414 1415 1416 1417
     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_...'.)
1418 1419
     [Ben Laurie]

1420
  *) Initial reduction of linker bloat: the use of some functions, such as
D
 
Dr. Stephen Henson 已提交
1421 1422 1423 1424 1425 1426 1427
     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]

1428
  *) Cleanup of EVP macros.
1429
     [Ben Laurie]
1430

1431
  *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1432 1433
     correct _ecb suffix.
     [Ben Laurie]
1434

1435
  *) Add initial OCSP responder support to ocsp application. The
D
 
Dr. Stephen Henson 已提交
1436 1437 1438 1439 1440 1441
     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]

1442
  *) Add configuration choices to get zlib compression for TLS.
1443 1444
     [Richard Levitte]

1445
  *) Changes to Kerberos SSL for RFC 2712 compliance:
1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457
     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]

1458
  *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1459 1460 1461 1462 1463
     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]

1464
  *) Speed up EVP routines.
1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476
     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
1477
des-cbc           4660.16k     5650.19k     5807.19k     5827.13k     5783.32k
1478
decrypt
1479
des-cbc           3624.96k     5258.21k     5530.91k     5624.30k     5628.26k
1480 1481
     [Ben Laurie]

1482
  *) Added the OS2-EMX target.
R
Richard Levitte 已提交
1483 1484
     ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]

1485
  *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
D
 
Dr. Stephen Henson 已提交
1486 1487 1488 1489 1490 1491 1492
     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]

1493
  *) Enhance the general user interface with mechanisms for inner control
U
ispell  
Ulf Möller 已提交
1494
     and with possibilities to have yes/no kind of prompts.
R
Richard Levitte 已提交
1495 1496
     [Richard Levitte]

1497
  *) Change all calls to low level digest routines in the library and
D
 
Dr. Stephen Henson 已提交
1498 1499 1500 1501
     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]

1502
  *) Add the possibility to control engines through control names but with
1503 1504 1505 1506
     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
1507
     Adapt the nCipher code for these new conditions and add a card insertion
1508 1509 1510
     callback.
     [Richard Levitte]

1511
  *) Enhance the general user interface with mechanisms to better support
1512 1513
     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
1514
     and interrupts/cancellations.
1515 1516
     [Richard Levitte]

1517
  *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1518 1519 1520
     attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
     [Steve Henson]

1521
  *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
U
ispell  
Ulf Möller 已提交
1522
     tidy up some unnecessarily weird code in 'sk_new()').
1523 1524
     [Geoff, reported by Diego Tartara <dtartara@novamens.com>]

1525
  *) Change the key loading routines for ENGINEs to use the same kind
1526 1527 1528 1529
     callback (pem_password_cb) as all other routines that need this
     kind of callback.
     [Richard Levitte]

1530
  *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1531 1532
     256 bit (=32 byte) keys. Of course seeding with more entropy bytes
     than this minimum value is recommended.
1533
     [Lutz Jaenicke]
1534

1535
  *) New random seeder for OpenVMS, using the system process statistics
R
Richard Levitte 已提交
1536 1537 1538
     that are easily reachable.
     [Richard Levitte]

1539
  *) Windows apparently can't transparently handle global
1540 1541 1542 1543 1544
     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
1545
     declare their own ASN1 modules. This was fixed by adding the option
1546 1547 1548 1549
     EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
     needed for static libraries under Win32.
     [Steve Henson]

1550
  *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
D
 
Dr. Stephen Henson 已提交
1551 1552 1553 1554
     setting of purpose and trust fields. New X509_STORE trust and
     purpose functions and tidy up setting in other SSL functions.
     [Steve Henson]

1555
  *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569
     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]

1570
  *) Initial CRL based revocation checking. If the CRL checking flag(s)
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1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584
     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]

1585
  *) Add a general user interface API (crypto/ui/).  This is designed
1586 1587 1588 1589 1590
     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.
1591 1592
     [Richard Levitte]

1593
  *) Add "ex_data" support to ENGINE so implementations can add state at a
G
Geoff Thorpe 已提交
1594 1595 1596
     per-structure level rather than having to store it globally.
     [Geoff]

1597
  *) Make it possible for ENGINE structures to be copied when retrieved by
G
Geoff Thorpe 已提交
1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608
     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]

1609
  *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
D
 
Dr. Stephen Henson 已提交
1610 1611 1612 1613
     needs to match any other type at all we need to manually clear the
     tag cache.
     [Steve Henson]

1614
  *) Changes to the "openssl engine" utility to include;
1615 1616 1617 1618 1619 1620 1621 1622 1623
     - 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]

1624
  *) New dynamic control command support for ENGINEs. ENGINEs can now
1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642
     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]

1643
  *) Changed all ENGINE implementations to dynamically allocate their
1644 1645 1646 1647 1648 1649
     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]

1650
  *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1651 1652 1653 1654 1655
     '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]

1656
  *) Made a variety of little tweaks to the ENGINE code.
1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668
     - "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
1669
       or function to NULL is a way of cancelling out a previously set
1670 1671 1672 1673 1674 1675 1676 1677
       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]

1678
  *) Implement binary inversion algorithm for BN_mod_inverse in addition
U
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Ulf Möller 已提交
1679
     to the algorithm using long division.  The binary algorithm can be
1680 1681 1682 1683 1684 1685
     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.
1686 1687
     [Bodo Moeller]

1688
  *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1689 1690 1691
     could not support the combine flag in choice fields.
     [Steve Henson]

1692
  *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1693 1694 1695
     extensions from a certificate request to the certificate.
     [Steve Henson]

1696
  *) Allow multiple 'certopt' and 'nameopt' options to be separated
D
 
Dr. Stephen Henson 已提交
1697 1698 1699 1700 1701 1702 1703 1704
     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]

1705
  *) Function EC_POINTs_mul for multiple scalar multiplication
B
Bodo Möller 已提交
1706 1707 1708 1709 1710
     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].

1711 1712 1713
     EC_POINT_mul is a simple wrapper function for the typical case
     that the point list has just one item (besides the optional
     generator).
1714 1715
     [Bodo Moeller]

1716
  *) First EC_METHODs for curves over GF(p):
1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728

     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>]

1729
  *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1730 1731
     crypto/ec/ec_lib.c):

B
Bodo Möller 已提交
1732 1733
     Curves are EC_GROUP objects (with an optional group generator)
     based on EC_METHODs that are built into the library.
1734 1735 1736 1737

     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
1738 1739
     finite fields, but as there are no obvious types for fields other
     than GF(p), some functions are limited to that for now.
1740 1741
     [Bodo Moeller]

1742
  *) Add the -HTTP option to s_server.  It is similar to -WWW, but requires
1743 1744 1745
     that the file contains a complete HTTP response.
     [Richard Levitte]

1746
  *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
D
 
Dr. Stephen Henson 已提交
1747 1748 1749 1750 1751 1752
     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]

1753
  *) Constify the cipher and digest 'method' functions and structures
D
 
Dr. Stephen Henson 已提交
1754 1755 1756 1757
     and modify related functions to take constant EVP_MD and EVP_CIPHER
     pointers.
     [Steve Henson]

1758
  *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1759
     in <openssl/bn.h>.  Also further increase BN_CTX_NUM to 32.
B
Bodo Möller 已提交
1760 1761
     [Bodo Moeller]

1762
  *) Modify EVP_Digest*() routines so they now return values. Although the
D
 
Dr. Stephen Henson 已提交
1763 1764 1765 1766
     internal software routines can never fail additional hardware versions
     might.
     [Steve Henson]

1767
  *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
B
Bodo Möller 已提交
1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784

     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]

1785
  *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
B
Bodo Möller 已提交
1786 1787 1788
     suffices.
     [Bodo Moeller]

1789
  *) New option '-subj arg' for 'openssl req' and 'openssl ca'.  This
1790 1791 1792 1793 1794 1795 1796 1797 1798
     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>]

1799
  *) Introduce the possibility to access global variables through
1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820
     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
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     header file everywhere where the defined globals are used.
1822 1823

     The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
U
ispell  
Ulf Möller 已提交
1824
     of ASN.1 items, but that structure is a bit different.
1825 1826 1827 1828 1829 1830 1831 1832

     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]

1833
  *) In BN_div() keep a copy of the sign of 'num' before writing the
D
 
Dr. Stephen Henson 已提交
1834 1835 1836 1837 1838
     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]

1839
  *) Function OCSP_request_verify(). This checks the signature on an
D
 
Dr. Stephen Henson 已提交
1840 1841 1842 1843 1844
     OCSP request and verifies the signer certificate. The signer
     certificate is just checked for a generic purpose and OCSP request
     trust settings.
     [Steve Henson]

1845
  *) Add OCSP_check_validity() function to check the validity of OCSP
1846 1847 1848
     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
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Ulf Möller 已提交
1849
     caused by either OCSP responder or client clock inaccuracy. Instead
1850 1851 1852 1853 1854 1855
     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]

1856
  *) If signature or public key algorithm is unrecognized print out its
U
ispell  
Ulf Möller 已提交
1857
     OID rather that just UNKNOWN.
D
 
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1858 1859
     [Steve Henson]

1860
  *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1861 1862 1863 1864 1865
     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]

1866
  *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877
     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]

1878
  *) Add support for overriding the generation of SSL/TLS session IDs.
1879 1880 1881 1882 1883 1884 1885 1886
     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]

1887
  *) Modify mkdef.pl to recognise and parse preprocessor conditionals
1888 1889 1890 1891 1892
     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]

1893
  *) Make all configuration macros available for application by making
1894 1895 1896 1897
     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.
1898 1899 1900 1901 1902 1903
     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.
1904 1905
     [Richard Levitte]

1906
  *) New option -set_serial to 'req' and 'x509' this allows the serial
1907 1908 1909 1910 1911 1912
     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]

1913
  *) New options to 'ca' utility to support V2 CRL entry extensions.
1914 1915 1916 1917
     Currently CRL reason, invalidity date and hold instruction are
     supported. Add new CRL extensions to V3 code and some new objects.
     [Steve Henson]

1918
  *) New function EVP_CIPHER_CTX_set_padding() this is used to
1919 1920 1921 1922 1923 1924
     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]

1925
  *) Initial (incomplete) OCSP SSL support.
D
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1926 1927
     [Steve Henson]

1928
  *) New function OCSP_parse_url(). This splits up a URL into its host,
1929 1930 1931 1932
     port and path components: primarily to parse OCSP URLs. New -url
     option to ocsp utility.
     [Steve Henson]

1933
  *) New nonce behavior. The return value of OCSP_check_nonce() now 
1934 1935 1936 1937 1938 1939 1940 1941
     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]

1942
  *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1943 1944 1945 1946
     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]

1947
  *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
D
 
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1948 1949 1950 1951
     set string type: to handle setting ASN1_TIME structures. Fix ca
     utility to correctly initialize revocation date of CRLs.
     [Steve Henson]

1952
  *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1953 1954 1955
     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
1956
     (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1957 1958
     [Lutz Jaenicke]

1959
  *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1960 1961 1962 1963
     to aes and add a new 'exist' option to print out symbols that don't
     appear to exist.
     [Steve Henson]

1964
  *) Additional options to ocsp utility to allow flags to be set and
1965 1966 1967
     additional certificates supplied.
     [Steve Henson]

1968
  *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1969 1970 1971 1972
     OCSP client a number of certificate to only verify the response
     signature against.
     [Richard Levitte]

1973
  *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
D
 
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1974
     handle the new API. Currently only ECB, CBC modes supported. Add new
B
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1975 1976
     AES OIDs.

1977 1978 1979 1980 1981 1982 1983 1984 1985
     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]
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1986

1987
  *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1988 1989 1990
     request to response.
     [Steve Henson]

1991
  *) Functions for OCSP responders. OCSP_request_onereq_count(),
D
 
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     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
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     response and returns the OCSP_SINGLERESP structure just added (to allow
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     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]

2004
  *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2005
     in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
U
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2006
     structure from a certificate. X509_pubkey_digest() digests the public_key
2007 2008 2009
     contents: this is used in various key identifiers. 
     [Steve Henson]

2010
  *) Make sk_sort() tolerate a NULL argument.
2011 2012
     [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]

2013
  *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2014
     passed by the function are trusted implicitly. If any of them signed the
U
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2015
     response then it is assumed to be valid and is not verified.
2016 2017
     [Steve Henson]

2018
  *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2019 2020 2021 2022 2023
     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>]

2024
  *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2025 2026 2027 2028
     routines: without these tracing memory leaks is very painful.
     Fix leaks in PKCS12 and PKCS7 routines.
     [Steve Henson]

2029
  *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2030 2031 2032 2033 2034 2035 2036 2037
     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>]

2038
  *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2039 2040 2041 2042 2043 2044 2045
     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]

2046
  *) Add summary printout to ocsp utility. The various functions which
2047 2048 2049 2050 2051 2052 2053
     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]

2054
  *) Add additional OCSP certificate checks. These are those specified
2055 2056 2057 2058 2059 2060 2061 2062 2063
     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]

2064
  *) Initial OCSP certificate verification added to OCSP_basic_verify()
D
 
Dr. Stephen Henson 已提交
2065 2066 2067 2068 2069 2070 2071 2072 2073
     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]

2074
  *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2075 2076 2077 2078 2079 2080
     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>]

2081
  *) New OCSP utility. Allows OCSP requests to be generated or
D
 
Dr. Stephen Henson 已提交
2082 2083 2084 2085 2086
     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]

2087
  *) New subcommands for 'openssl ca':
2088 2089 2090 2091 2092 2093
     '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>]

2094
  *) New '-newreq-nodes' command option to CA.pl.  This is like
2095 2096 2097 2098
     '-newreq', but calls 'openssl req' with the '-nodes' option
     so that the resulting key is not encrypted.
     [Damien Miller <djm@mindrot.org>]

2099
  *) New configuration for the GNU Hurd.
2100 2101
     [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]

2102
  *) Initial code to implement OCSP basic response verify. This
D
 
Dr. Stephen Henson 已提交
2103 2104 2105 2106
     is currently incomplete. Currently just finds the signer's
     certificate and verifies the signature on the response.
     [Steve Henson]

2107
  *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2108 2109 2110 2111
     value of OPENSSLDIR.  This is available via the new '-d' option
     to 'openssl version', and is also included in 'openssl version -a'.
     [Bodo Moeller]

2112
  *) Allowing defining memory allocation callbacks that will be given
2113 2114 2115 2116 2117 2118 2119
     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:
2120 2121 2122 2123 2124 2125

	CRYPTO_set_mem_ex_functions
	CRYPTO_set_locked_mem_ex_functions
	CRYPTO_get_mem_ex_functions
	CRYPTO_get_locked_mem_ex_functions

2126 2127 2128 2129 2130 2131
     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]
2132

2133
  *) Finish off removing the remaining LHASH function pointer casts.
2134
     There should no longer be any prototype-casting required when using
2135 2136 2137
     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).
2138 2139
     [Geoff Thorpe]

2140
  *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2141 2142 2143 2144 2145 2146
     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.
2147 2148
     [Lutz Jaenicke]

2149
  *) Change the Unix RAND_poll() variant to be able to poll several
2150 2151 2152 2153 2154 2155 2156 2157
     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.
2158 2159
     [Richard Levitte]

2160
  *) Move OCSP client related routines to ocsp_cl.c. These
D
 
Dr. Stephen Henson 已提交
2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181
     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]

2182
  *) Change function OCSP_request_add() to OCSP_request_add0_id().
2183 2184 2185 2186 2187 2188 2189 2190 2191 2192
     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]

2193
  *) Update OCSP API. Remove obsolete extensions argument from
D
Dr. Stephen Henson 已提交
2194 2195 2196 2197 2198
     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]

2199
  *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211
     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]

2212
  *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
R
Richard Levitte 已提交
2213 2214 2215 2216
     OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
     files to get correct declarations of the ASN.1 item variables.
     [Richard Levitte]

2217
  *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
D
 
Dr. Stephen Henson 已提交
2218 2219 2220 2221 2222 2223 2224
     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]

2225
  *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2226 2227 2228 2229
     replace the old function pointer based I/O routines. Change most of
     the *_d2i_bio() and *_d2i_fp() functions to use these.
     [Steve Henson]

2230
  *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
R
Richard Levitte 已提交
2231 2232 2233 2234
     lines, recognice more "algorithms" that can be deselected, and make
     it complain about algorithm deselection that isn't recognised.
     [Richard Levitte]

2235
  *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2236 2237 2238 2239
     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.
2240 2241
     [Steve Henson]

2242
  *) New extension functions for OCSP structures, these follow the
D
Dr. Stephen Henson 已提交
2243 2244 2245
     same conventions as certificates and CRLs.
     [Steve Henson]

2246
  *) New function X509V3_add1_i2d(). This automatically encodes and
2247 2248 2249 2250 2251
     adds an extension. Its behaviour can be customised with various
     flags to append, replace or delete. Various wrappers added for
     certifcates and CRLs.
     [Steve Henson]

2252
  *) Fix to avoid calling the underlying ASN1 print routine when
D
 
Dr. Stephen Henson 已提交
2253 2254 2255 2256
     an extension cannot be parsed. Correct a typo in the
     OCSP_SERVICELOC extension. Tidy up print OCSP format.
     [Steve Henson]

2257
  *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2258
     entries for variables.
D
 
Dr. Stephen Henson 已提交
2259
     [Steve Henson]
2260

2261
  *) Add functionality to apps/openssl.c for detecting locking
B
Bodo Möller 已提交
2262 2263 2264 2265 2266
     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]

2267
  *) Use a lock around the call to CRYPTO_get_ex_new_index() in
B
Bodo Möller 已提交
2268 2269 2270 2271 2272 2273 2274
     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]

2275
  *) Added Broadcom "ubsec" ENGINE to OpenSSL.
G
Geoff Thorpe 已提交
2276 2277
     [Broadcom, tweaked and integrated by Geoff Thorpe]

2278
  *) Move common extension printing code to new function
2279
     X509V3_print_extensions(). Reorganise OCSP print routines and
2280
     implement some needed OCSP ASN1 functions. Add OCSP extensions.
2281 2282
     [Steve Henson]

2283
  *) New function X509_signature_print() to remove duplication in some
2284 2285 2286
     print routines.
     [Steve Henson]

2287
  *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2288 2289 2290 2291 2292 2293 2294
     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]

2295
  *) Reimplement the OCSP ASN1 module using the new code.
2296 2297
     [Steve Henson]

2298
  *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
D
 
Dr. Stephen Henson 已提交
2299 2300 2301 2302
     for its ASN1 operations. The old style function pointers still exist
     for now but they will eventually go away.
     [Steve Henson]

2303
  *) Merge in replacement ASN1 code from the ASN1 branch. This almost
D
 
Dr. Stephen Henson 已提交
2304 2305 2306 2307 2308
     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
2309 2310
     [Steve Henson]

2311
  *) Change BN_mod_exp_recp so that negative moduli are tolerated
2312 2313 2314 2315 2316
     (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]

2317
  *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2318 2319 2320
     of not touching the result's sign bit.
     [Bodo Moeller]

2321
  *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
B
Bodo Möller 已提交
2322 2323 2324
     set.
     [Bodo Moeller]

2325
  *) Changed the LHASH code to use prototypes for callbacks, and created
G
Geoff Thorpe 已提交
2326 2327 2328 2329 2330
     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]

2331
  *) Added Kerberos Cipher Suites to be used with TLS, as written in
B
Bodo Möller 已提交
2332
     RFC 2712.
2333
     [Veers Staats <staatsvr@asc.hpc.mil>,
U
Ulf Möller 已提交
2334
      Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2335

2336
  *) Reformat the FAQ so the different questions and answers can be divided
U
typo  
Ulf Möller 已提交
2337
     in sections depending on the subject.
2338 2339
     [Richard Levitte]

2340
  *) Have the zlib compression code load ZLIB.DLL dynamically under
2341 2342 2343
     Windows.
     [Richard Levitte]

2344
  *) New function BN_mod_sqrt for computing square roots modulo a prime
B
Bodo Möller 已提交
2345 2346 2347
     (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
2348 2349
     [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]

2350
  *) Make BN_mod_inverse faster by explicitly handling small quotients
B
Bodo Möller 已提交
2351 2352
     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
2353 2354
     [Bodo Moeller]

2355
  *) New function BN_kronecker.
B
Bodo Möller 已提交
2356 2357
     [Bodo Moeller]

2358
  *) Fix BN_gcd so that it works on negative inputs; the result is
B
Bodo Möller 已提交
2359 2360 2361 2362 2363 2364
     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]

2365
  *) Fix BN_is_word() and BN_is_one() macros to take into account the
B
Bodo Möller 已提交
2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376
     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]

2377
  *) New function BN_swap.
B
Bodo Möller 已提交
2378 2379
     [Bodo Moeller]

2380
  *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
B
Bodo Möller 已提交
2381 2382 2383 2384
     the exponentiation functions are more likely to produce reasonable
     results on negative inputs.
     [Bodo Moeller]

2385
  *) Change BN_mod_mul so that the result is always non-negative.
B
Bodo Möller 已提交
2386 2387 2388 2389
     Previously, it could be negative if one of the factors was negative;
     I don't think anyone really wanted that behaviour.
     [Bodo Moeller]

2390
  *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
U
Ulf Möller 已提交
2391
     (except for exponentiation, which stays in crypto/bn/bn_exp.c,
B
Bodo Möller 已提交
2392 2393
     and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
     and add new functions:
B
Bodo Möller 已提交
2394

B
Bodo Möller 已提交
2395 2396 2397
          BN_nnmod
          BN_mod_sqr
          BN_mod_add
B
Bodo Möller 已提交
2398
          BN_mod_add_quick
B
Bodo Möller 已提交
2399
          BN_mod_sub
B
Bodo Möller 已提交
2400 2401 2402 2403 2404 2405
          BN_mod_sub_quick
          BN_mod_lshift1
          BN_mod_lshift1_quick
          BN_mod_lshift
          BN_mod_lshift_quick

B
Bodo Möller 已提交
2406
     These functions always generate non-negative results.
B
Bodo Möller 已提交
2407

B
Bodo Möller 已提交
2408 2409
     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
2410 2411 2412 2413

     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
2414 2415
     [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]

B
Bodo Möller 已提交
2416 2417 2418 2419 2420
#if 0
     The following entry accidentily appeared in the CHANGES file
     distributed with OpenSSL 0.9.7.  The modifications described in
     it do *not* apply to OpenSSL 0.9.7.

2421
  *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2422 2423
     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
2424 2425
     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(),
2426 2427 2428
     bn_sub_words() and bn_add_words() except they take arrays with
     differing sizes.
     [Richard Levitte]
B
Bodo Möller 已提交
2429
#endif
2430

2431
  *) In 'openssl passwd', verify passwords read from the terminal
2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442
     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]

2443
  *) Remove all references to RSAref, since there's no more need for it.
2444 2445
     [Richard Levitte]

2446
  *) Make DSO load along a path given through an environment variable
2447 2448 2449
     (SHLIB_PATH) with shl_load().
     [Richard Levitte]

2450
  *) Constify the ENGINE code as a result of BIGNUM constification.
R
Richard Levitte 已提交
2451 2452 2453 2454
     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)
2455 2456
     [Richard Levitte]

2457
  *) Make it so the openssl application has all engines loaded by default.
2458 2459
     [Richard Levitte]

2460
  *) Constify the BIGNUM routines a little more.
2461 2462
     [Richard Levitte]

2463
  *) Add the following functions:
2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480

	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]

2481
  *) 'openssl engine' can now list capabilities.
2482 2483
     [Richard Levitte]

2484
  *) Better error reporting in 'openssl engine'.
2485 2486
     [Richard Levitte]

2487
  *) Never call load_dh_param(NULL) in s_server.
2488 2489
     [Bodo Moeller]

2490
  *) Add engine application.  It can currently list engines by name and
2491 2492 2493
     identity, and test if they are actually available.
     [Richard Levitte]

2494
  *) Improve RPM specification file by forcing symbolic linking and making
R
Richard Levitte 已提交
2495 2496 2497
     sure the installed documentation is also owned by root.root.
     [Damien Miller <djm@mindrot.org>]

2498
  *) Give the OpenSSL applications more possibilities to make use of
R
Richard Levitte 已提交
2499 2500 2501
     keys (public as well as private) handled by engines.
     [Richard Levitte]

2502
  *) Add OCSP code that comes from CertCo.
R
Richard Levitte 已提交
2503 2504
     [Richard Levitte]

2505
  *) Add VMS support for the Rijndael code.
2506 2507
     [Richard Levitte]

2508
  *) Added untested support for Nuron crypto accelerator.
2509 2510
     [Ben Laurie]

2511
  *) Add support for external cryptographic devices.  This code was
2512 2513 2514
     previously distributed separately as the "engine" branch.
     [Geoff Thorpe, Richard Levitte]

2515
  *) Rework the filename-translation in the DSO code. It is now possible to
2516 2517 2518 2519 2520
     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]

2521
  *) Support threads on FreeBSD-elf in Configure.
R
Richard Levitte 已提交
2522 2523
     [Richard Levitte]

2524
  *) Fix for SHA1 assembly problem with MASM: it produces
2525 2526 2527 2528 2529
     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]

2530
  *) NCONF changes.
R
Richard Levitte 已提交
2531 2532 2533 2534 2535 2536 2537 2538 2539 2540
     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]

2541
  *) Fix for non blocking accept BIOs. Added new I/O special reason
2542 2543 2544 2545 2546 2547
     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]

2548
  *) Added the beginnings of Rijndael support.
2549 2550
     [Ben Laurie]

2551
  *) Fix for bug in DirectoryString mask setting. Add support for
2552 2553 2554 2555
     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.
2556 2557
     [Steve Henson]

2558
  *) Clean old EAY MD5 hack from e_os.h.
R
Richard Levitte 已提交
2559 2560
     [Richard Levitte]

2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581
 Changes between 0.9.6j and 0.9.6k  [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
     invalid tags (CAN-2003-0543 and CAN-2003-0544).
     
     If verify callback ignores invalid public key errors don't try to check
     certificate signature with the NULL public key.

     [Steve Henson]

  *) Fix various bugs revealed by running the NISCC test suite:

     Stop out of bounds reads in the ASN1 code when presented with
     invalid tags (CAN-2003-0543 and CAN-2003-0544).
     
     If verify callback ignores invalid public key errors don't try to check
     certificate signature with the NULL public key.

     [Steve Henson]
2582

2583 2584 2585 2586 2587
  *) 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]

2588 2589 2590 2591 2592
  *) 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]

2593
  *) Change X509_certificate_type() to mark the key as exported/exportable
R
Richard Levitte 已提交
2594 2595
     when it's 512 *bits* long, not 512 bytes.
     [Richard Levitte]
2596

2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621
 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]

2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633
 Changes between 0.9.6h and 0.9.6i  [19 Feb 2003]

  *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
     via timing by performing a MAC computation even if incorrrect
     block cipher padding has been found.  This is a countermeasure
     against active attacks where the attacker has to distinguish
     between bad padding and a MAC verification error. (CAN-2003-0078)

     [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
     Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
     Martin Vuagnoux (EPFL, Ilion)]

2634
 Changes between 0.9.6g and 0.9.6h  [5 Dec 2002]
D
 
Dr. Stephen Henson 已提交
2635

2636 2637 2638 2639 2640 2641 2642 2643
  *) 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]

2644 2645 2646 2647 2648 2649 2650
  *) 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]

2651 2652 2653 2654
  *) 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>]

2655 2656 2657 2658 2659 2660
  *) 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]

2661 2662 2663 2664
  *) Change the default configuration reader to deal with last line not
     being properly terminated.
     [Richard Levitte]

2665 2666 2667 2668 2669
  *) 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]

2670 2671 2672 2673 2674 2675 2676 2677 2678 2679
  *) 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]

2680 2681 2682 2683
  *) 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
2684
  *) Fix initialization code race conditions in
B
Bodo Möller 已提交
2685 2686 2687 2688
        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
2689 2690
        ssl2_get_cipher_by_char(),
        ssl3_get_cipher_by_char().
B
Bodo Möller 已提交
2691
     [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
B
Bodo Möller 已提交
2692

2693 2694 2695 2696 2697 2698
  *) 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
2699 2700 2701 2702
  *) 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
2703
 Changes between 0.9.6f and 0.9.6g  [9 Aug 2002]
R
Richard Levitte 已提交
2704

B
Bodo Möller 已提交
2705 2706 2707
  *) [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
2708 2709

 Changes between 0.9.6e and 0.9.6f  [8 Aug 2002]
B
Bodo Möller 已提交
2710

2711 2712 2713 2714 2715 2716
  *) 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
2717 2718 2719 2720
  *) 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]
2721

2722 2723 2724 2725 2726 2727 2728
 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
2729

2730 2731 2732 2733 2734
  *) 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
2735 2736 2737
  *) Fix EVP_dsa_sha macro.
     [Nils Larsch]

2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750
  *) 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]

2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779
  *) 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
     supplied buffer. (CAN-2002-0659)
     [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
     too small for 64 bit platforms. (CAN-2002-0655)
     [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>

  *) Remote buffer overflow in SSL3 protocol - an attacker could
     supply an oversized session ID to a client. (CAN-2002-0656)
     [Ben Laurie (CHATS)]

  *) Remote buffer overflow in SSL2 protocol - an attacker could
     supply an oversized client master key. (CAN-2002-0656)
     [Ben Laurie (CHATS)]

B
Bodo Möller 已提交
2780
 Changes between 0.9.6c and 0.9.6d  [9 May 2002]
2781

2782 2783 2784 2785
  *) 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
2786 2787 2788
  *) Check various X509_...() return values in apps/req.c.
     [Nils Larsch <nla@trustcenter.de>]

2789 2790 2791 2792 2793 2794 2795 2796
  *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
     an end-of-file condition would erronously be flagged, when the CRLF
     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]

2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812
  *) 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>]

2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869
  *) 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]

2870 2871 2872
  *) Add the configuration target linux-s390x.
     [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]

2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 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 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520
  *) 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
     should end in 'break', not 'goto end' which circuments various
     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
     verification error occured.  (Neither SSLerr() codes nor alerts
     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.
     [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]

  *) 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.
     [Ulf Möller, Bodo Möller]

  *) 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.
     [Ulf Möller]

  *) rand_win.c fix for Borland C.
     [Ulf Möller]
 
  *) 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]

3521 3522 3523 3524 3525 3526 3527 3528
  *) 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
3529 3530 3531 3532
  *) Correct util/mkdef.pl to be selective about disabled algorithms.
     Previously, it would create entries for disableed algorithms no
     matter what.
     [Richard Levitte]
3533

3534 3535 3536
  *) Added several new manual pages for SSL_* function.
     [Lutz Jaenicke]

3537
 Changes between 0.9.5a and 0.9.6  [24 Sep 2000]
D
Dr. Stephen Henson 已提交
3538

B
Bodo Möller 已提交
3539 3540 3541 3542 3543
  *) 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
3544
     from the record header as a substitute; but our protocol choice
B
Bodo Möller 已提交
3545 3546 3547 3548
     should not depend on that one because it is not authenticated
     by the Finished messages.
     [Bodo Moeller]

U
Ulf Möller 已提交
3549 3550 3551
  *) More robust randomness gathering functions for Windows.
     [Jeffrey Altman <jaltman@columbia.edu>]

D
 
Dr. Stephen Henson 已提交
3552 3553 3554 3555 3556 3557 3558 3559
  *) 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
3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571
  *) 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]

3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587
  *) 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]

3588
  *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3589
     it can return incorrect results.
3590 3591
     (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
     but it was in 0.9.6-beta[12].)
3592 3593
     [Bodo Moeller]

3594 3595 3596 3597 3598
  *) 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]

3599 3600
  *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
     BIO_ctrl (for BIO pairs).
U
Ulf Möller 已提交
3601
     [Bodo Möller]
3602

3603 3604 3605
  *) Add DSO method for VMS.
     [Richard Levitte]

3606 3607 3608 3609
  *) Bug fix: Montgomery multiplication could produce results with the
     wrong sign.
     [Ulf Möller]

3610 3611 3612 3613 3614 3615 3616 3617
  *) 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]
     
3618 3619 3620
  *) Add a large number of documentation files for many SSL routines.
     [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]

3621 3622 3623
  *) Add a configuration entry for Sony News 4.
     [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]

U
Ulf Möller 已提交
3624 3625
  *) Don't set the two most significant bits to one when generating a
     random number < q in the DSA library.
3626
     [Ulf Möller]
U
Ulf Möller 已提交
3627

3628 3629 3630 3631 3632 3633 3634 3635 3636
  *) 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
3637 3638 3639 3640
  *) Add RAND_egd_bytes(), which gives control over the number of bytes read
     from EGD.
     [Ben Laurie]

3641 3642 3643 3644
  *) Add a few more EBCDIC conditionals that make `req' and `x509'
     work better on such systems.
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]

3645 3646 3647 3648 3649
  *) 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]

3650 3651 3652 3653
  *) Fix bug in PKCS7_verify() which caused an infinite loop
     if there was more than one signature.
     [Sven Uszpelkat <su@celocom.de>]

3654 3655 3656 3657 3658 3659
  *) Major change in util/mkdef.pl to include extra information
     about each symbol, as well as presentig variables as well
     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
3660 3661 3662
  *) Allow the verify time to be set by an application,
     rather than always using the current time.
     [Steve Henson]
3663
  
D
Dr. Stephen Henson 已提交
3664 3665 3666 3667 3668 3669
  *) 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.
3670
 
D
Dr. Stephen Henson 已提交
3671 3672
     Lot of changes were necessary in order to support this
     without completely rewriting the lookup code.
3673
 
D
Dr. Stephen Henson 已提交
3674
     Authority and subject key identifier are now cached.
3675
 
D
Dr. Stephen Henson 已提交
3676 3677 3678 3679
     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.
3680

D
Dr. Stephen Henson 已提交
3681 3682 3683 3684
     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.
3685
 
D
Dr. Stephen Henson 已提交
3686 3687
     The functions X509_STORE_add_cert() now checks for an
     exact match, rather than just subject name.
3688
 
D
Dr. Stephen Henson 已提交
3689 3690 3691 3692 3693 3694 3695
     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...).
3696
 
D
Dr. Stephen Henson 已提交
3697
     The X509_VERIFY_CTX structure has been enhanced considerably.
3698
 
D
Dr. Stephen Henson 已提交
3699 3700 3701 3702 3703 3704 3705 3706
     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().
3707
 
D
Dr. Stephen Henson 已提交
3708 3709
     The verify_cb() and verify() callbacks now have equivalents
     in the X509_STORE_CTX structure.
3710
 
D
Dr. Stephen Henson 已提交
3711 3712 3713
     X509_STORE_CTX also has a 'flags' field which can be used
     to customise the verify behaviour.
     [Steve Henson]
3714
 
3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725
  *) 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
3726 3727 3728
  *) 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
3729 3730

     In BIO_puts, increment b->num_write as in BIO_write.
B
Bodo Möller 已提交
3731 3732
     [Peter.Sylvester@EdelWeb.fr]

3733 3734 3735 3736 3737 3738 3739 3740 3741 3742
  *) 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]

3743 3744 3745 3746 3747
  *) 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
3748 3749 3750
  *) New Configure entry and patches for compiling on QNX 4.
     [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]

B
Ben Laurie 已提交
3751 3752 3753 3754 3755
  *) A demo state-machine implementation was sponsored by
     Nuron (http://www.nuron.com/) and is now available in
     demos/state_machine.
     [Ben Laurie]

3756 3757 3758 3759
  *) New options added to the 'dgst' utility for signature
     generation and verification.
     [Steve Henson]

3760 3761 3762 3763 3764 3765
  *) 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]

3766
  *) Fix various signed/unsigned issues to make a_strex.c
D
 
Dr. Stephen Henson 已提交
3767 3768 3769 3770 3771 3772 3773 3774
     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
3775 3776 3777 3778 3779 3780 3781
  *) 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]

3782 3783 3784
  *) Added BIO_vprintf() and BIO_vsnprintf().
     [Richard Levitte]

3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808
  *) 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]

3809 3810 3811 3812 3813 3814
  *) 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]

3815
  *) MD4 implemented.
3816
     [Assar Westerlund <assar@sics.se>, Richard Levitte]
3817

3818 3819 3820
  *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
     [Richard Levitte]

3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833
  *) 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]

3834
  *) Changes needed for Tandem NSK.
U
Ulf Möller 已提交
3835
     [Scott Uroff <scott@xypro.com>]
3836

B
Bodo Möller 已提交
3837 3838 3839 3840 3841
  *) 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.

3842 3843 3844 3845 3846 3847
     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]

3848 3849 3850 3851 3852
  *) 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
3853 3854 3855 3856 3857 3858 3859
  *) 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]

3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876
  *) 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
3877 3878 3879 3880
  *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
     not read locks (CRYPTO_r_[un]lock).
     [Bodo Moeller]

3881 3882 3883 3884 3885
  *) 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.
3886
     This has been tested on Linux and Tru64.
3887 3888
     [Richard Levitte]

3889 3890 3891 3892 3893
  *) Randomness polling function for Win9x, as described in:
     Peter Gutmann, Software Generation of Practically Strong
     Random Numbers.
     [Ulf Möller]

D
 
Dr. Stephen Henson 已提交
3894 3895 3896 3897
  *) Fix so PRNG is seeded in req if using an already existing
     DSA key.
     [Steve Henson]

3898 3899 3900 3901 3902 3903 3904 3905 3906 3907
  *) 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
3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919
  *) 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
3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936
  *) 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]

3937 3938 3939
  *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
     [Bodo Moeller]

R
Richard Levitte 已提交
3940
  *) Addition of the command line parameter '-rand file' to 'openssl req'.
R
Richard Levitte 已提交
3941 3942 3943
     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
3944 3945
     [Richard Levitte]

3946 3947 3948 3949 3950 3951
  *) 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
3952 3953 3954 3955 3956 3957
  *) 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]

3958 3959 3960 3961 3962 3963 3964 3965 3966
  *) 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
3967 3968
     the default if no major problems. Similar behaviour for ASN1_SET_OF
     and PKCS12_STACK_OF.
3969 3970
     [Steve Henson]

3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982
  *) 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
     MD5(MD5(password) + "SGCKEYSALT")  is used insted. Added some
     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
3983 3984 3985 3986 3987
  *) 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>]

3988 3989 3990 3991 3992 3993
  *) 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]

3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004
  *) 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
4005 4006 4007 4008 4009 4010 4011 4012
  *) 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]

4013 4014
  *) 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
4015 4016
     [Bodo Moeller]

U
Ulf Möller 已提交
4017 4018 4019
  *) CygWin32 support.
     [John Jarvie <jjarvie@newsguy.com>]

4020 4021 4022 4023 4024 4025 4026 4027
  *) 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]

4028 4029 4030 4031 4032 4033 4034 4035 4036
  *) 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
4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049
  *) 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
4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065
  *) 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*
4066 4067 4068 4069
     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
4070 4071
     New functionality allows removal of S/MIME code RC2 hack.

D
Dr. Stephen Henson 已提交
4072 4073 4074
     Most of the routines have the same form and so can be declared in terms
     of macros.

4075 4076 4077 4078
     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
4079 4080 4081 4082

     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
4083 4084
     [Steve Henson]

4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096
  *) 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]

4097 4098 4099 4100
  *) Add missing DSA library text string. Work around for some IIS
     key files with invalid SEQUENCE encoding.
     [Steve Henson]

4101 4102 4103 4104
  *) Add a document (doc/standards.txt) that list all kinds of standards
     and so on that are implemented in OpenSSL.
     [Richard Levitte]

4105 4106 4107 4108 4109 4110
  *) 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]

4111
  *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4112
     [Ulf Möller]
4113

4114 4115 4116 4117 4118
  *) 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>]

4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131
  *) 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
4132 4133 4134 4135 4136
  *) 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]

4137 4138 4139 4140 4141 4142
  *) 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
4143 4144 4145
  *) Bugfix for linux-elf makefile.one.
     [Ulf Möller]

4146 4147 4148 4149 4150 4151 4152
  *) 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]

4153 4154 4155 4156 4157 4158 4159
  *) 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
4160 4161 4162 4163 4164 4165
  *) 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]

4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178
  *) 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:

4179 4180
        NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
        NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4181

4182
        NCONF_default, NCONF_WIN32
4183

4184
        NCONF_dump_fp, NCONF_dump_bio
4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197

     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]

4198 4199 4200 4201 4202 4203
  *) 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]

4204 4205 4206 4207
  *) 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]
4208

4209 4210 4211
 Changes between 0.9.5 and 0.9.5a  [1 Apr 2000]

  *) Make sure _lrotl and _lrotr are only used with MSVC.
4212

4213 4214 4215
  *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
     (the default implementation of RAND_status).

4216 4217 4218 4219 4220
  *) 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
4221 4222 4223 4224
  *) 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>]

4225 4226 4227 4228 4229 4230 4231
  *) 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]

4232 4233 4234 4235
  *) des_quad_cksum() byte order bug fix.
     [Ulf Möller, using the problem description in krb4-0.9.7, where
      the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]

4236 4237 4238 4239
  *) 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
4240 4241
  *) 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
4242
     returns with exit code 0 iff no command of the given name is available.
B
Bodo Möller 已提交
4243
     'no-XXX' is printed in this case, 'XXX' otherwise.  In both cases,
4244 4245 4246 4247 4248
     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
4249 4250 4251

     ('openssl no-XXX' is not able to detect pseudo-commands such
     as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4252 4253
     [Bodo Moeller]

4254 4255 4256
  *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
     [Bodo Moeller]

4257 4258 4259 4260 4261 4262 4263 4264 4265
  *) 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
     'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
     you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
     [Bodo Moeller]

B
Bodo Möller 已提交
4266 4267 4268 4269 4270 4271
  *) 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
4272
  *) Add compatibility options to the purpose and trust code. The
4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283
     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]

4284 4285 4286 4287
  *) Fix the PKCS#8 DSA private key code so it decodes keys again
     and fix a memory leak.
     [Steve Henson]

4288 4289 4290 4291 4292 4293
  *) In util/mkerr.pl (which implements 'make errors'), preserve
     reason strings from the previous version of the .c file, as
     the default to have only downcase letters (and digits) in
     automatically generated reasons codes is not always appropriate.
     [Bodo Moeller]

4294 4295 4296 4297 4298 4299
  *) 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]

4300 4301 4302 4303 4304 4305 4306 4307 4308
  *) 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]

4309 4310 4311 4312 4313
  *) 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]

4314 4315 4316 4317
  *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
     instead of RAND_bytes for encryption IVs and salts.
     [Bodo Moeller]

4318 4319 4320 4321 4322
  *) 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]

4323 4324 4325 4326
  *) Don't let DSA_generate_key() enter an infinite loop if the random
     number generation fails.
     [Bodo Moeller]

B
Bodo Möller 已提交
4327 4328 4329
  *) New 'rand' application for creating pseudo-random output.
     [Bodo Moeller]

4330 4331 4332
  *) Added configuration support for Linux/IA64
     [Rolf Haberrecker <rolf@suse.de>]

U
Ulf Möller 已提交
4333 4334 4335
  *) Assembler module support for Mingw32.
     [Ulf Möller]

4336 4337 4338 4339 4340
  *) 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>]
4341

R
Richard Levitte 已提交
4342
 Changes between 0.9.4 and 0.9.5  [28 Feb 2000]
U
Ulf Möller 已提交
4343

4344 4345 4346 4347
  *) PKCS7_encrypt() was adding text MIME headers twice because they
     were added manually and by SMIME_crlf_copy().
     [Steve Henson]

4348 4349 4350
  *) 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
4351
  *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4352
     case was implemented. This caused BN_div_recp() to fail occasionally.
U
Ulf Möller 已提交
4353 4354
     [Ulf Möller]

4355 4356 4357 4358 4359 4360 4361
  *) 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>]

4362 4363 4364 4365 4366 4367
  *) 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]

4368 4369 4370 4371 4372 4373 4374 4375
  *) 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.
4376 4377
     [Steve Henson]

4378 4379 4380 4381
  *) 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
4382 4383 4384 4385
  *) Fix potential buffer overrun problem in BIO_printf().
     [Ulf Möller, using public domain code by Patrick Powell; problem
      pointed out by David Sacerdote <das33@cornell.edu>]

U
Ulf Möller 已提交
4386 4387 4388 4389 4390 4391
  *) 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.
     [Ulf Möller]

D
 
Dr. Stephen Henson 已提交
4392 4393 4394 4395 4396 4397 4398 4399 4400 4401
  *) 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]

4402 4403 4404 4405 4406
  *) 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]

4407 4408 4409 4410 4411 4412
  *) ..._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
4413
     [Richard Levitte]
4414 4415 4416 4417 4418 4419 4420 4421 4422

  *) <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.
U
Ulf Möller 已提交
4423
     [Richard Levitte, Ulf and Bodo Möller]
4424

4425 4426 4427 4428
  *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
     record layer.
     [Bodo Moeller]

4429 4430 4431 4432 4433
  *) 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]

4434 4435 4436 4437 4438 4439
  *) 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
4440 4441 4442 4443 4444 4445 4446 4447
  *) 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]

4448 4449 4450 4451 4452
  *) 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.]

4453 4454 4455 4456 4457 4458
  *) 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]

4459 4460 4461
  *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
     [Andy Polyakov]

4462 4463 4464 4465
  *) Add -rand argument to smime and pkcs12 applications and read/write
     of seed file.
     [Steve Henson]

B
Bodo Möller 已提交
4466
  *) New 'passwd' tool for crypt(3) and apr1 password hashes.
B
Bodo Möller 已提交
4467 4468
     [Bodo Moeller]

4469 4470 4471
  *) Add command line password options to the remaining applications.
     [Steve Henson]

4472 4473 4474 4475 4476 4477 4478
  *) Bug fix for BN_div_recp() for numerators with an even number of
     bits.
     [Ulf Möller]

  *) More tests in bntest.c, and changed test_bn output.
     [Ulf Möller]

4479 4480 4481
  *) ./config recognizes MacOS X now.
     [Andy Polyakov]

4482 4483 4484 4485
  *) 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).
     [Ulf Möller]

4486 4487 4488 4489
  *) Add support for various broken PKCS#8 formats, and command line
     options to produce them.
     [Steve Henson]

4490 4491 4492 4493 4494 4495 4496 4497
  *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
     get temporary BIGNUMs from a BN_CTX.
     [Ulf Möller]

  *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
     for p == 0.
     [Ulf Möller]

4498 4499 4500 4501 4502 4503 4504 4505 4506
  *) 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
     link with digests. This never worked becayse SSLeay_add_all_digests()
     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
4507 4508 4509
  *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
     [Steve Henson]

4510 4511 4512 4513 4514
  *) 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
4515
  *) Support for the EBCDIC character set completed.
U
Ulf Möller 已提交
4516 4517
     [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]

U
Ulf Möller 已提交
4518 4519 4520 4521
  *) Source code cleanups: use const where appropriate, eliminate casts,
     use void * instead of char * in lhash.
     [Ulf Möller] 

4522 4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533 4534 4535 4536 4537
  *) 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
4538 4539 4540 4541 4542 4543 4544 4545 4546
     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).
4547 4548
     [Bodo Moeller]

4549
  *) New function BN_is_prime_fasttest that optionally does trial
4550 4551 4552
     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).
4553 4554 4555
     'callback(1, -1, cb_arg)' is called when a number has passed the
     trial division stage.
     [Bodo Moeller]
4556

D
Dr. Stephen Henson 已提交
4557 4558 4559 4560
  *) 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
4561 4562 4563
  *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
     [Steve Henson]

U
Ulf Möller 已提交
4564 4565
  *) New function BN_pseudo_rand().
     [Ulf Möller]
4566

U
Ulf Möller 已提交
4567 4568 4569 4570 4571 4572
  *) 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.
     [Ulf Möller]

B
Bodo Möller 已提交
4573 4574 4575 4576 4577
  *) 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
4578 4579 4580 4581
  *) 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).
     [Ulf Möller, Bodo Möller]
B
Bodo Möller 已提交
4582

D
 
Dr. Stephen Henson 已提交
4583 4584 4585 4586
  *) 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]

4587 4588 4589
  *) Make BN_generate_prime() return NULL on error if ret!=NULL.
     [Ulf Möller]

4590 4591 4592 4593
  *) 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.
4594 4595 4596 4597 4598 4599 4600
     [Ulf Möller]

  *) 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".)
     [Ulf Möller]

D
 
Dr. Stephen Henson 已提交
4601 4602 4603 4604 4605
  *) 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]

4606 4607 4608 4609 4610 4611 4612 4613 4614 4615 4616 4617 4618 4619 4620 4621 4622 4623 4624 4625 4626
  *) 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
4627

4628 4629 4630 4631 4632 4633 4634
  *) 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]

4635 4636 4637 4638
  *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
     the new code. Add documentation for this stuff.
     [Steve Henson]

4639 4640 4641 4642 4643 4644 4645 4646 4647 4648
  *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
     X509_*() to X509at_*() on the grounds that they don't handle X509
     structures and behave in an analagous way to the X509v3 functions:
     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
4649
     because they handle more complex structures.)
4650 4651
     [Steve Henson]

4652 4653 4654 4655 4656
  *) 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. 
     [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]

4657
  *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4658 4659
     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
4660
     error queue. New function RAND_pseudo_bytes() generates output that is
4661 4662 4663
     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).
4664 4665
     [Ulf Möller]

4666 4667
  *) 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
4668
     instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4669
     in crypto/bn/bn_prime.c for the complete table).  This guarantees a
4670
     false-positive rate of at most 2^-80 for random input.
4671 4672
     [Bodo Moeller]

4673
  *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4674 4675
     [Bodo Moeller]

4676 4677
  *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
     in the 0.9.5 release), this returns the chain
4678 4679 4680 4681 4682 4683 4684 4685 4686
     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]

4687 4688 4689 4690 4691 4692
  *) 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]

4693 4694 4695
  *) Honor the no-xxx Configure options when creating .DEF files.
     [Ulf Möller]

4696 4697 4698 4699 4700 4701 4702 4703 4704 4705 4706
  *) 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]

4707 4708 4709 4710 4711 4712 4713 4714 4715
  *) 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
4716
     manner analogous to the X509 extension functions: they allow
4717 4718 4719 4720 4721
     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
4722
     be handled by the string table functions.
4723 4724 4725 4726 4727 4728 4729 4730 4731

     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]

4732 4733 4734 4735 4736 4737 4738 4739 4740 4741
  *) 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.
4742 4743
     [Bodo Moeller]

4744 4745
  *) Enhanced support for Alpha Linux is added. Now ./config checks if
     the host supports BWX extension and if Compaq C is present on the
4746
     $PATH. Just exploiting of the BWX extension results in 20-30%
4747 4748 4749 4750 4751
     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]

4752 4753 4754 4755 4756 4757 4758 4759 4760 4761 4762
  *) 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
4763
     reset the MAC if we do get this second client hello.
4764 4765
     [Steve Henson]

4766 4767 4768 4769 4770 4771 4772 4773
  *) 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]

4774 4775 4776 4777 4778 4779 4780 4781
  *) 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]

4782 4783 4784 4785 4786 4787 4788 4789
  *) 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]

4790 4791 4792 4793 4794 4795 4796
  *) 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]

4797 4798 4799 4800 4801 4802 4803 4804 4805
  *) 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
4806
     in place for compatibility: they check the NID and also return "trusted"
4807 4808 4809
     if the certificate is self signed.
     [Steve Henson]

4810 4811 4812 4813
  *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
     traditional format into an EVP_PKEY structure.
     [Steve Henson]

4814 4815
  *) 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
4816
     terminated password. Allow passwords to be passed on command line
4817 4818 4819
     environment or config files in a few more utilities.
     [Steve Henson]

4820 4821 4822 4823 4824 4825
  *) 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
4826 4827
  *) 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
4828
     and produce an error if it couldn't. For compatibility we also have
D
Dr. Stephen Henson 已提交
4829 4830 4831 4832
     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]

4833 4834 4835 4836
  *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
     for details.
     [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]

4837 4838 4839
  *) 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
4840 4841 4842
     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
4843 4844 4845 4846
     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.
4847

4848 4849
     With these changes, a new set of functions and macros have appeared:

4850 4851 4852 4853 4854
       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]
4855 4856 4857

     The memory debug functions are NULL by default, unless the library
     is compiled with CRYPTO_MDEBUG or friends is defined.  If someone
4858 4859 4860 4861 4862 4863 4864 4865
     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.   
4866 4867 4868 4869 4870 4871 4872 4873 4874 4875 4876 4877 4878 4879

     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.
4880
     [Richard Levitte and Bodo Moeller]
4881

D
Dr. Stephen Henson 已提交
4882 4883 4884 4885 4886 4887
  *) 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]

4888 4889 4890 4891
  *) 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]

4892 4893 4894 4895 4896 4897 4898 4899
  *) 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]

4900 4901 4902 4903 4904 4905 4906 4907
  *) 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
4908 4909 4910 4911
  *) New function PKCS12_newpass() which changes the password of a
     PKCS12 structure.
     [Steve Henson]

4912 4913 4914 4915 4916 4917 4918 4919 4920 4921 4922 4923
  *) 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]

4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943
  *) 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]

4944 4945 4946 4947 4948 4949
  *) 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]

4950 4951 4952 4953 4954 4955 4956 4957
  *) 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]

4958 4959 4960 4961 4962
  *) 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:
4963 4964
     this is because it will reject chains with invalid extensions whereas
     every previous version of OpenSSL and SSLeay made no checks at all.
4965 4966 4967 4968 4969 4970 4971

     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.
4972 4973 4974 4975

     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.
4976

4977 4978 4979 4980
     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.

4981 4982 4983 4984
     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.
4985 4986 4987
     [Steve Henson]

  *) Support for the authority information access extension.
4988 4989
     [Steve Henson]

4990 4991 4992 4993 4994
  *) 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
4995
     these are retained for compatibility: however the DSA variants were
4996 4997 4998 4999 5000 5001 5002 5003 5004 5005
     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
5006
     stay in the name of compatibility.
5007 5008 5009 5010 5011 5012

     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.
5013 5014 5015 5016 5017 5018
     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).
5019 5020 5021 5022 5023 5024 5025 5026 5027 5028 5029 5030 5031 5032 5033 5034 5035
     [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]

5036 5037 5038
  *) Code to support otherName option in GeneralName.
     [Steve Henson]

5039 5040 5041 5042 5043 5044 5045 5046 5047 5048 5049 5050 5051
  *) 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]

5052 5053 5054 5055 5056 5057 5058 5059 5060 5061 5062
  *) 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]

5063 5064 5065
  *) 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.
5066
     [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5067

5068 5069 5070 5071 5072
  *) 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
5073 5074 5075 5076 5077 5078
  *) 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
5079 5080
  *) SSL_get1_session() is like SSL_get_session(), but increments
     the reference count in the SSL_SESSION returned.
5081 5082
     [Geoff Thorpe <geoff@eu.c2.net>]

5083 5084 5085 5086 5087
  *) 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]

5088 5089 5090 5091
  *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
     the 'enc' command.
     [Steve Henson]

5092 5093
  *) Add the possibility to add extra information to the memory leak
     detecting output, to form tracebacks, showing from where each
5094 5095 5096 5097 5098
     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.
5099 5100
     [Richard Levitte]

5101
  *) Add options -text and -noout to pkcs7 utility and delete the
D
 
Dr. Stephen Henson 已提交
5102 5103 5104
     encryption options which never did anything. Update docs.
     [Steve Henson]

5105 5106 5107 5108 5109 5110
  *) 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]

5111 5112 5113
  *) Add a few manpages for some of the openssl commands.
     [Steve Henson]

5114 5115 5116 5117
  *) Fix the -revoke option in ca. It was freeing up memory twice,
     leaking and not finding already revoked certificates.
     [Steve Henson]

5118 5119 5120 5121 5122
  *) 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
5123
     doing things this way a fair degree of compatibility can be
5124 5125 5126 5127 5128 5129 5130 5131 5132 5133
     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]

5134 5135 5136 5137 5138
  *) 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.
5139 5140
     [Mark Cox]

5141 5142 5143 5144 5145
  *) 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
5146
     the effective key length. In this case the effective key length can still
5147 5148 5149 5150 5151 5152
     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]

5153 5154 5155 5156 5157 5158 5159 5160 5161 5162 5163 5164 5165 5166 5167 5168 5169 5170
  *) 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
5171
  *) Make crypto/rand/md_rand.c more robust:
5172
     - Assure unique random numbers after fork().
B
Bodo Möller 已提交
5173 5174 5175 5176 5177 5178 5179 5180
     - 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]

5181 5182 5183 5184 5185
  *) 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,
5186
          dsaparam -genkey (which also ignored its '-rand' option), 
5187 5188 5189 5190 5191
          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
5192
     for RSA signatures we could do without one.
5193 5194

     gendh and gendsa (unlike genrsa) used to read only the first byte
5195
     of each file listed in the '-rand' option.  The function as previously
5196
     found in genrsa is now in app_rand.c and is used by all programs
5197
     that support '-rand'.
5198 5199 5200 5201 5202 5203 5204 5205 5206 5207
     [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]

5208 5209 5210 5211 5212 5213 5214
  *) 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]

5215 5216 5217 5218 5219 5220
  *) 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]

5221 5222 5223 5224 5225 5226 5227 5228
  *) 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
5229 5230 5231 5232
  *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
     functions.
     [Steve Henson]

5233 5234 5235 5236 5237 5238
  *) 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]

5239 5240 5241 5242
  *) RC4 tune-up featuring 30-40% performance improvement on most RISC
     platforms. See crypto/rc4/rc4_enc.c for further details.
     [Andy Polyakov]

5243 5244 5245 5246 5247
  *) 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]

5248 5249 5250 5251
  *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
     when producing the local key id.
     [Richard Levitte <levitte@stacken.kth.se>]

5252 5253 5254 5255 5256 5257
  *) 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]

5258 5259 5260 5261 5262 5263
  *) 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
5264 5265 5266 5267 5268 5269 5270 5271 5272 5273
  *) 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>]

5274 5275 5276 5277 5278 5279 5280 5281 5282 5283 5284 5285 5286 5287
  *) 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) ]

5288 5289 5290 5291 5292 5293 5294 5295 5296 5297 5298 5299 5300
  *) 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]

5301 5302 5303 5304 5305 5306 5307 5308 5309 5310 5311
  *) 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]

5312 5313 5314
  *) 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
5315
     no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5316 5317 5318 5319
     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]

5320 5321 5322 5323 5324
  *) 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]

5325 5326 5327 5328 5329 5330 5331
  *) 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]

5332
  *) Non-copying interface to BIO pairs.
5333
     (still largely untested)
5334 5335
     [Bodo Moeller]

5336 5337 5338 5339
  *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
     ASCII string. This was handled independently in various places before.
     [Steve Henson]

5340 5341 5342 5343
  *) New functions UTF8_getc() and UTF8_putc() that parse and generate
     UTF8 strings a character at a time.
     [Steve Henson]

5344 5345 5346 5347 5348
  *) 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]

5349 5350 5351 5352 5353 5354 5355
  *) 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
5356 5357 5358
  *) RIPEMD160 is operational on all platforms and is back in 'make test'.
     [Andy Polyakov]

5359 5360 5361 5362 5363 5364 5365 5366
  *) 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]

5367 5368 5369 5370 5371 5372 5373
  *) 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]

5374 5375 5376 5377 5378 5379
  *) 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]

5380
  *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5381
     data read consists of only the final block it would not decrypted because
5382 5383 5384 5385 5386
     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]

5387 5388 5389 5390 5391
  *) 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]

5392 5393 5394 5395 5396 5397 5398 5399
  *) 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]

5400 5401 5402 5403 5404 5405 5406 5407 5408
  *) 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
5409
     memory BIOs.
5410 5411
     [Steve Henson]

5412 5413 5414 5415 5416 5417
  *) 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,
     but a retry condition occured while trying to read the rest.
     [Bodo Moeller]

5418 5419 5420 5421 5422 5423 5424 5425
  *) 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]

5426 5427 5428 5429 5430
  *) 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]

5431
  *) Initial support for certificate extension requests, these are included
5432 5433
     in things like Xenroll certificate requests. Included functions to allow
     extensions to be obtained and added.
5434 5435
     [Steve Henson]

B
Bodo Möller 已提交
5436 5437 5438 5439
  *) -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
5440
 Changes between 0.9.3a and 0.9.4  [09 Aug 1999]
5441
  
B
Bodo Möller 已提交
5442
  *) Install libRSAglue.a when OpenSSL is built with RSAref.
5443
     [Ralf S. Engelschall]
5444

5445 5446 5447
  *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
     [Andrija Antonijevic <TheAntony2@bigfoot.com>]

5448 5449 5450 5451
  *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
     program.
     [Steve Henson]

5452 5453 5454 5455 5456 5457 5458 5459 5460 5461 5462 5463 5464 5465 5466 5467 5468 5469 5470 5471 5472
  *) 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]

5473 5474 5475 5476
  *) 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
5477 5478 5479 5480 5481 5482
  *) 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]

5483 5484 5485 5486
  *) 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
5487 5488 5489
     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.
5490 5491
     [Steve Henson]

A
Andy Polyakov 已提交
5492 5493 5494
  *) Added support for SPARC Linux.
     [Andy Polyakov]

5495 5496 5497 5498 5499 5500 5501 5502
  *) 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.
5503
     [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5504 5505 5506 5507 5508 5509 5510 5511 5512 5513

     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
5514

5515 5516 5517
  *) 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.
5518
     To avoid problematic command lines, these definitions are now in an
5519 5520
     auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
     for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5521 5522
     [Bodo Moeller]

5523 5524 5525
  *) MIPS III/IV assembler module is reimplemented.
     [Andy Polyakov]

U
Ulf Möller 已提交
5526 5527 5528 5529
  *) More DES library cleanups: remove references to srand/rand and
     delete an unused file.
     [Ulf Möller]

5530 5531 5532 5533 5534 5535
  *) 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
5536 5537 5538 5539 5540 5541
  *) 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
5542 5543 5544 5545
  *) New function RSA_check_key and new openssl rsa option -check
     for verifying the consistency of RSA keys.
     [Ulf Moeller, Bodo Moeller]

5546 5547 5548 5549 5550
  *) 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.
5551
     [Steve Henson]
5552

5553 5554 5555 5556 5557
  *) 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]

5558 5559 5560
  *) Copy the flags in ASN1_STRING_dup().
     [Roman E. Pavlov <pre@mo.msk.ru>]

5561 5562 5563 5564 5565 5566 5567 5568 5569 5570 5571 5572 5573 5574 5575
  *) 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>]

5576 5577
  *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
     The interface is as follows:
B
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5578 5579 5580 5581 5582 5583 5584 5585 5586 5587 5588
     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.
5589 5590 5591 5592

     -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.
5593 5594 5595 5596 5597

     -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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5598 5599
     [Bodo Moeller]

5600 5601 5602
  *) 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.
5603
     Initial "mode" flags are:
5604 5605 5606 5607 5608 5609 5610 5611 5612

     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]

5613
  *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5614 5615
     worked.

U
Ulf Möller 已提交
5616 5617 5618
  *) Fix problems with no-hmac etc.
     [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]

5619 5620 5621 5622 5623
  *) 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
Bodo Möller 已提交
5624 5625 5626 5627 5628
  *) 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]

5629 5630 5631 5632 5633 5634 5635 5636
  *) 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>]

5637 5638 5639 5640 5641 5642 5643 5644
  *) 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]

5645 5646 5647 5648 5649
  *) 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]

5650
  *) mk1mf.pl (used by Windows builds) did not properly read the
5651
     options set by Configure in the top level Makefile, and Configure
B
Bodo Möller 已提交
5652
     was not even able to write more than one option correctly.
5653
     Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5654 5655
     [Bodo Moeller]

5656 5657 5658 5659 5660
  *) 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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5661 5662 5663
  *) 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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5664 5665 5666 5667
     (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
Bodo Möller 已提交
5668 5669
     [Bodo Moeller]

B
Bodo Möller 已提交
5670 5671 5672 5673 5674 5675 5676 5677 5678 5679
  *) 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]

5680 5681 5682 5683
  *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
     for the encoded length.
     [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]

5684 5685 5686
  *) Add initial documentation of the X509V3 functions.
     [Steve Henson]

5687 5688 5689 5690 5691 5692
  *) 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]

5693 5694 5695 5696
  *) Fix determination of Perl interpreter: A perl or perl5
     _directory_ in $PATH was also accepted as the interpreter.
     [Ralf S. Engelschall]

5697 5698 5699 5700 5701 5702
  *) 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]

5703 5704 5705 5706 5707 5708 5709 5710 5711 5712
  *) 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
5713 5714 5715 5716 5717
  *) 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]

5718
#if 0
5719 5720
  *) DES CBC did not update the IV. Weird.
     [Ben Laurie]
5721
#else
5722 5723 5724
     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.
5725
#endif
5726

5727 5728 5729 5730 5731 5732
  *) 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]

5733 5734 5735
  *) DES library cleanups.
     [Ulf Möller]

5736 5737 5738 5739 5740 5741 5742 5743
  *) 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
Bodo Möller 已提交
5744 5745
  *) Instead of "mkdir -p", which is not fully portable, use new
     Perl script "util/mkdir-p.pl".
B
Bodo Möller 已提交
5746
     [Bodo Moeller]
B
Bodo Möller 已提交
5747

5748 5749 5750 5751 5752 5753 5754 5755 5756 5757 5758
  *) 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]

5759
  *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5760 5761 5762 5763 5764
     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.
5765 5766
     [Steve Henson]

5767 5768 5769 5770
  *) Introduce some semblance of const correctness to BN. Shame C doesn't
     support mutable.
     [Ben Laurie]

B
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5771
  *) "linux-sparc64" configuration (ultrapenguin).
B
Bodo Möller 已提交
5772
     [Ray Miller <ray.miller@oucs.ox.ac.uk>]
B
Bodo Möller 已提交
5773 5774
     "linux-sparc" configuration.
     [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
B
Bodo Möller 已提交
5775

5776 5777 5778 5779 5780 5781 5782 5783 5784 5785
  *) config now generates no-xxx options for missing ciphers.
     [Ulf Möller]

  *) 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
Ben Laurie 已提交
5786 5787 5788
  *) Make callbacks for key generation use void * instead of char *.
     [Ben Laurie]

B
Ben Laurie 已提交
5789 5790 5791
  *) Make S/MIME samples compile (not yet tested).
     [Ben Laurie]

B
Bodo Möller 已提交
5792 5793 5794
  *) Additional typesafe stacks.
     [Ben Laurie]

B
Bodo Möller 已提交
5795
  *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
B
Bodo Möller 已提交
5796 5797
     [Bodo Moeller]

B
Bodo Möller 已提交
5798

B
Ben Laurie 已提交
5799
 Changes between 0.9.3 and 0.9.3a  [29 May 1999]
5800

B
Bodo Möller 已提交
5801 5802
  *) New configuration variant "sco5-gcc".

B
Bodo Möller 已提交
5803
  *) Updated some demos.
B
Bodo Möller 已提交
5804
     [Sean O Riordain, Wade Scholine]
B
Bodo Möller 已提交
5805

B
Bodo Möller 已提交
5806 5807 5808 5809 5810 5811
  *) Add missing BIO_free at exit of pkcs12 application.
     [Wu Zhigang]

  *) Fix memory leak in conf.c.
     [Steve Henson]

5812 5813 5814 5815 5816 5817 5818 5819 5820 5821 5822 5823 5824
  *) 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
Bodo Möller 已提交
5825

B
Bodo Möller 已提交
5826
 Changes between 0.9.2b and 0.9.3  [24 May 1999]
U
Ulf Möller 已提交
5827

5828 5829 5830 5831
  *) 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>]

5832 5833 5834 5835 5836 5837 5838 5839 5840 5841 5842 5843
  *) 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]

5844 5845 5846 5847
  *) 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
5848
  *) Change type of various DES function arguments from des_cblock
B
Typo.  
Bodo Möller 已提交
5849
     (which means, in function argument declarations, pointer to char)
B
Bodo Möller 已提交
5850 5851 5852 5853 5854 5855 5856
     to des_cblock * (meaning pointer to array with 8 char elements),
     which allows the compiler to do more typechecking; it was like
     that back in SSLeay, but with lots of ugly casts.

     Introduce new type const_des_cblock.
     [Bodo Moeller]

5857 5858 5859 5860 5861
  *) 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
5862 5863 5864
  *) Belatedly make the BN tests actually check the results.
     [Ben Laurie]

5865 5866 5867 5868 5869 5870
  *) 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
5871 5872 5873
  *) Reorganize and speed up MD5.
     [Andy Polyakov <appro@fy.chalmers.se>]

U
Ulf Möller 已提交
5874 5875
  *) VMS support.
     [Richard Levitte <richard@levitte.org>]
5876

5877 5878 5879 5880 5881
  *) 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]

5882 5883 5884 5885 5886 5887 5888
  *) 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
5889 5890 5891
  *) Move openssl.cnf out of lib/.
     [Ulf Möller]

5892 5893 5894 5895 5896
  *) 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]

5897 5898 5899 5900
  *) 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]

5901 5902 5903 5904 5905 5906 5907 5908 5909 5910 5911 5912 5913 5914 5915 5916
  *) 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
5917 5918 5919 5920 5921
     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.
5922 5923
     [Bodo Moeller]

5924 5925 5926 5927 5928 5929
  *) 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]

5930 5931 5932 5933 5934 5935 5936 5937 5938 5939 5940 5941
  *) 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
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5942 5943 5944 5945
  *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
     without disallowing inline assembler and the like for non-pedantic builds.
     [Ben Laurie]

5946 5947 5948 5949 5950 5951
  *) Support Borland C++ builder.
     [Janez Jere <jj@void.si>, modified by Ulf Möller]

  *) Support Mingw32.
     [Ulf Möller]

5952 5953 5954
  *) SHA-1 cleanups and performance enhancements.
     [Andy Polyakov <appro@fy.chalmers.se>]

U
Ulf Möller 已提交
5955
  *) Sparc v8plus assembler for the bignum library.
5956
     [Andy Polyakov <appro@fy.chalmers.se>]
U
Ulf Möller 已提交
5957

5958 5959 5960 5961 5962 5963
  *) Accept any -xxx and +xxx compiler options in Configure.
     [Ulf Möller]

  *) Update HPUX configuration.
     [Anonymous]
  
5964 5965 5966
  *) Add missing sk_<type>_unshift() function to safestack.h
     [Ralf S. Engelschall]

5967 5968 5969 5970 5971 5972
  *) 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]

5973 5974 5975 5976 5977 5978 5979
  *) 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]

5980 5981 5982 5983 5984 5985
  *) 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).

5986
  *) New function SSL_CTX_set_session_id_context that allows to set a default
B
Bodo Möller 已提交
5987 5988
     value (so that you don't need SSL_set_session_id_context for each
     connection using the SSL_CTX).
5989 5990
     [Bodo Moeller]

U
Ulf Möller 已提交
5991 5992 5993
  *) OAEP decoding bug fix.
     [Ulf Möller]

5994 5995 5996 5997
  *) Support INSTALL_PREFIX for package builders, as proposed by
     David Harris.
     [Bodo Moeller]

B
 
Bodo Möller 已提交
5998 5999 6000 6001 6002
  *) 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]

6003 6004 6005
  *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
     [Bodo Moeller]

6006 6007 6008 6009 6010
  *) 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
6011
  *) "make linux-shared" to build shared libraries.
6012
     [Niels Poppe <niels@netbox.org>]
U
Ulf Möller 已提交
6013

6014 6015 6016
  *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
     [Ulf Möller]

6017 6018 6019 6020
  *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
     extension adding in x509 utility.
     [Steve Henson]

6021 6022 6023
  *) Remove NOPROTO sections and error code comments.
     [Ulf Möller]

6024 6025 6026 6027
  *) Partial rewrite of the DEF file generator to now parse the ANSI
     prototypes.
     [Steve Henson]

6028
  *) New Configure options --prefix=DIR and --openssldir=DIR.
U
Ulf Möller 已提交
6029
     [Ulf Möller]
6030

6031 6032 6033 6034 6035 6036 6037 6038
  *) 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
6039 6040
     have now been deleted. Also the error code call doesn't have to appear all
     on one line (which resulted in some large lines...).
6041 6042
     [Steve Henson]

B
 
Bodo Möller 已提交
6043
  *) Change #include filenames from <foo.h> to <openssl/foo.h>.
B
 
Bodo Möller 已提交
6044 6045
     [Bodo Moeller]

6046 6047 6048 6049
  *) 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
6050 6051 6052
  *) Fix some race conditions.
     [Bodo Moeller]

6053 6054 6055 6056
  *) Add support for CRL distribution points extension. Add Certificate
     Policies and CRL distribution points documentation.
     [Steve Henson]

6057 6058 6059
  *) Move the autogenerated header file parts to crypto/opensslconf.h.
     [Ulf Möller]

B
Ben Laurie 已提交
6060 6061 6062 6063 6064
  *) 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
6065 6066 6067 6068 6069
  *) 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
6070
     [Richard Levitte <levitte@stacken.kth.se>]
U
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6071
 
U
Ulf Möller 已提交
6072 6073 6074
  *) Fix problems with sizeof(long) == 8.
     [Andy Polyakov <appro@fy.chalmers.se>]

U
Ulf Möller 已提交
6075 6076 6077
  *) Change functions to ANSI C.
     [Ulf Möller]

U
Ulf Möller 已提交
6078 6079 6080
  *) Fix typos in error codes.
     [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]

6081 6082 6083
  *) Remove defunct assembler files from Configure.
     [Ulf Möller]

U
Ulf Möller 已提交
6084 6085 6086
  *) SPARC v8 assembler BIGNUM implementation.
     [Andy Polyakov <appro@fy.chalmers.se>]

6087
  *) Support for Certificate Policies extension: both print and set.
6088
     Various additions to support the r2i method this uses.
6089 6090
     [Steve Henson]

B
Ben Laurie 已提交
6091 6092 6093 6094
  *) 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]

6095 6096
  *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
     types DirectoryString and DisplayText.
6097 6098
     [Steve Henson]

6099 6100 6101 6102
  *) Add code to allow r2i extensions to access the configuration database,
     add an LHASH database driver and add several ctx helper functions.
     [Steve Henson]

6103 6104 6105 6106
  *) Fix an evil bug in bn_expand2() which caused various BN functions to
     fail when they extended the size of a BIGNUM.
     [Steve Henson]

6107 6108 6109 6110
  *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
     support typesafe stack.
     [Steve Henson]

B
Typo.  
Ben Laurie 已提交
6111 6112 6113
  *) Fix typo in SSL_[gs]et_options().
     [Nils Frostberg <nils@medcom.se>]

6114 6115 6116 6117
  *) Delete various functions and files that belonged to the (now obsolete)
     old X509V3 handling code.
     [Steve Henson]

U
Ulf Möller 已提交
6118 6119 6120
  *) New Configure option "rsaref".
     [Ulf Möller]

6121 6122 6123
  *) Don't auto-generate pem.h.
     [Bodo Moeller]

B
Ben Laurie 已提交
6124 6125 6126
  *) Introduce type-safe ASN.1 SETs.
     [Ben Laurie]

6127
  *) Convert various additional casted stacks to type-safe STACK_OF() variants.
B
Ben Laurie 已提交
6128
     [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6129

B
Ben Laurie 已提交
6130 6131 6132 6133 6134 6135 6136
  *) 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]

6137 6138 6139 6140 6141 6142
  *) 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]

6143 6144 6145 6146 6147
  *) 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]

6148 6149 6150 6151 6152
  *) 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
6153 6154 6155 6156 6157 6158 6159 6160
  *) 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]

6161 6162 6163 6164
  *) Bugfix: s_client occasionally would sleep in select() when
     it should have checked SSL_pending() first.
     [Bodo Moeller]

U
Ulf Möller 已提交
6165 6166 6167 6168 6169
  *) New functions DSA_do_sign and DSA_do_verify to provide access to
     the raw DSA values prior to ASN.1 encoding.
     [Ulf Möller]

  *) Tweaks to Configure
B
Bodo Möller 已提交
6170
     [Niels Poppe <niels@netbox.org>]
U
Ulf Möller 已提交
6171

6172 6173 6174 6175
  *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
     yet...
     [Steve Henson]

6176 6177 6178
  *) New variables $(RANLIB) and $(PERL) in the Makefiles.
     [Ulf Möller]

U
Ulf Möller 已提交
6179 6180 6181 6182
  *) New config option to avoid instructions that are illegal on the 80386.
     The default code is faster, but requires at least a 486.
     [Ulf Möller]
  
6183 6184 6185 6186 6187 6188 6189 6190
  *) 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]

6191 6192 6193 6194
  *) Still more PKCS#12 integration. Add pkcs12 application to openssl
     application. Various cleanups and fixes.
     [Steve Henson]

6195 6196 6197 6198 6199
  *) 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]

6200 6201 6202 6203 6204
  *) 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]

6205 6206
  *) PKCS12 integration: and so it begins... First of several patches to
     slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6207
     objects to objects.h
6208 6209
     [Steve Henson]

6210 6211 6212 6213
  *) 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
6214 6215 6216
  *) Add LinuxPPC support.
     [Jeff Dubrule <igor@pobox.org>]

6217 6218 6219 6220
  *) 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]

6221 6222 6223 6224
  *) 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>]

6225 6226 6227 6228
  *) 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>]

6229 6230

 Changes between 0.9.1c and 0.9.2b  [22 Mar 1999]
6231

B
Ben Laurie 已提交
6232 6233 6234 6235 6236 6237 6238 6239 6240 6241
  *) 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 ???)]

6242 6243 6244 6245 6246 6247
  *) 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>]

6248 6249 6250 6251
  *) 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
6252 6253 6254
  *) Make rsa_oaep_test return non-zero on error.
     [Ulf Moeller <ulf@fitug.de>]

B
Ben Laurie 已提交
6255 6256 6257 6258 6259
  *) 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>]

6260 6261 6262
  *) ctx_size was not built with the right compiler during "make links". Fixed.
     [Ben Laurie]

6263 6264 6265 6266 6267 6268
  *) 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]

6269 6270 6271 6272 6273
  *) 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]

6274 6275 6276 6277 6278 6279 6280
  *) 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>]

6281 6282 6283
  *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
     [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]

6284 6285 6286
  *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
     advapi32.lib to Win32 build and change the pem test comparision
     to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6287 6288 6289
     suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
     and crypto/des/ede_cbcm_enc.c.
     [Steve Henson]
6290

B
Ben Laurie 已提交
6291 6292 6293
  *) DES quad checksum was broken on big-endian architectures. Fixed.
     [Ben Laurie]

6294 6295 6296 6297 6298
  *) 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]

6299 6300 6301 6302
  *) 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.
6303
     [Steve Henson]
6304

6305 6306 6307
  *) Make `openssl version' output lines consistent.
     [Ralf S. Engelschall]

6308 6309 6310 6311 6312
  *) 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]

6313 6314 6315 6316 6317 6318 6319 6320 6321
  *) 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
6322 6323 6324
  *) Fix the generation of two part addresses in perl.
     [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]

B
Ben Laurie 已提交
6325 6326 6327
  *) Add config entry for Linux on MIPS.
     [John Tobey <jtobey@channel1.com>]

B
Ben Laurie 已提交
6328
  *) Make links whenever Configure is run, unless we are on Windoze.
B
Ben Laurie 已提交
6329 6330
     [Ben Laurie]

6331 6332 6333
  *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
     Currently only issuerAltName and AuthorityKeyIdentifier make any sense
     in CRLs.
6334
     [Steve Henson]
6335

6336 6337 6338 6339 6340 6341 6342 6343 6344 6345 6346 6347
  *) 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
     to them (seperated by colons). This is treated as there would be a static
     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
6348 6349 6350
  *) Disable new TLS1 ciphersuites by default: they aren't official yet.
     [Ben Laurie]

6351 6352 6353 6354 6355 6356
  *) 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
6357 6358 6359 6360
  *) Remarkably, export ciphers were totally broken and no-one had noticed!
     Fixed.
     [Ben Laurie]

6361 6362 6363 6364 6365 6366 6367
  *) 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]

6368 6369 6370 6371 6372 6373 6374 6375
  *) General source tree makefile cleanups: Made `making xxx in yyy...'
     display consistent in the source tree and replaced `/bin/rm' by `rm'.
     Additonally cleaned up the `make links' target: Remove unnecessary
     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
6376 6377 6378 6379 6380 6381
  *) 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]

6382 6383 6384 6385 6386 6387
  *) 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]

6388 6389 6390 6391 6392 6393
  *) 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.
6394 6395
     [Steve Henson]

6396 6397 6398 6399 6400 6401
  *) 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]

6402 6403 6404 6405
  *) Remove confusing variables in function signatures in files
     ssl/ssl_lib.c and ssl/ssl.h.
     [Lennart Bong <lob@kulthea.stacken.kth.se>]

6406 6407 6408
  *) Don't install bss_file.c under PREFIX/include/
     [Lennart Bong <lob@kulthea.stacken.kth.se>]

6409 6410 6411 6412 6413 6414 6415
  *) 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]

6416 6417 6418 6419 6420
  *) 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()).
6421 6422 6423 6424
     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]

6425 6426 6427 6428 6429
  *) 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]
6430 6431 6432
  
  *) Get rid of remaining C++-style comments which strict C compilers hate.
     [Ralf S. Engelschall, pointed out by Carlos Amengual]
6433

6434 6435 6436 6437
  *) 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]

6438 6439 6440 6441 6442 6443 6444 6445 6446 6447 6448 6449 6450 6451 6452 6453 6454 6455
  *) 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]

6456 6457 6458 6459 6460
  *) 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]

6461 6462 6463 6464 6465 6466
  *) 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>]

6467 6468 6469
  *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
     [Richard Levitte <levitte@stacken.kth.se>]

6470 6471 6472 6473 6474
  *) 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>]

6475 6476 6477 6478
  *) 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]

6479 6480 6481 6482 6483 6484 6485 6486 6487 6488 6489
  *) 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
6490 6491 6492 6493
  *) 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>]

6494 6495 6496 6497 6498
  *) 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
6499 6500 6501
  *) Add cool BIO that does syslog (or event log on NT).
     [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]

6502 6503 6504 6505 6506 6507
  *) 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]

6508 6509 6510
  *) Add preliminary config info for new extension code.
     [Steve Henson]

6511 6512 6513
  *) Make RSA_NO_PADDING really use no padding.
     [Ulf Moeller <ulf@fitug.de>]

6514 6515 6516
  *) Generate errors when private/public key check is done.
     [Ben Laurie]

6517 6518 6519 6520
  *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
     for some CRL extensions and new objects added.
     [Steve Henson]

6521 6522 6523 6524
  *) 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
6525 6526 6527 6528 6529 6530 6531 6532 6533
  *) 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]

6534 6535 6536 6537 6538 6539 6540 6541 6542
  *) 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)]

6543 6544
  *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
     leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6545
     in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6546 6547
     [Steve Henson]

6548 6549 6550
  *) Support for RAW extensions where an arbitrary extension can be
     created by including its DER encoding. See apps/openssl.cnf for
     an example.
6551
     [Steve Henson]
6552

6553 6554 6555 6556
  *) 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>]

6557 6558 6559 6560 6561 6562
  *) 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]

6563 6564 6565 6566 6567 6568
  *) 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]

6569 6570 6571 6572 6573 6574
  *) 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]

6575 6576 6577 6578 6579 6580
  *) 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
6581 6582 6583 6584 6585 6586
  *) 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
6587
  *) Correct calculation of key length for export ciphers (too much space was
6588 6589 6590
     allocated for null ciphers). This has not been tested!
     [Ben Laurie]

6591 6592 6593 6594 6595 6596 6597
  *) 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.
6598
     [Steve Henson]
6599

6600 6601 6602 6603 6604 6605 6606 6607 6608
  *) 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
6609 6610 6611 6612 6613 6614 6615 6616 6617 6618 6619
  *) 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]

6620 6621 6622 6623 6624 6625 6626
  *) 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]

6627 6628 6629 6630
  *) Preliminary support for ENUMERATED type. This is largely copied from the
     INTEGER code.
     [Steve Henson]

6631 6632 6633
  *) 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)]

6634 6635 6636
  *) Make sure `make rehash' target really finds the `openssl' program.
     [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]

6637 6638 6639 6640
  *) 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]

6641 6642 6643
  *) Add CygWin32 platform information to Configure script.
     [Alan Batie <batie@aahz.jf.intel.com>]

6644 6645
  *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
     [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6646 6647 6648
  
  *) New program nseq to manipulate netscape certificate sequences
     [Steve Henson]
R
Ralf S. Engelschall 已提交
6649

6650 6651 6652 6653
  *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
     few typos.
     [Steve Henson]

6654 6655 6656 6657 6658
  *) 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)]

6659 6660 6661
  *) Add ASN1 and PEM code to support netscape certificate sequences.
     [Steve Henson]

6662 6663 6664
  *) Add ASN1 and PEM code to support netscape certificate sequences.
     [Steve Henson]

6665 6666 6667
  *) Add several PKIX and private extended key usage OIDs.
     [Steve Henson]

6668 6669 6670 6671
  *) Modify the 'ca' program to handle the new extension code. Modify
     openssl.cnf for new extension format, add comments.
     [Steve Henson]

6672 6673 6674 6675 6676
  *) 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]

6677 6678
  *) Continued X509 V3 changes. Add to other makefiles, integrate with the
     error code, add initial support to X509_print() and x509 application.
6679
     [Steve Henson]
6680

6681 6682 6683 6684 6685
  *) Takes a deep breath and start addding X509 V3 extension support code. Add
     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]

6686 6687 6688 6689 6690 6691 6692
  *) 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]

6693 6694 6695 6696 6697
  *) 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
6698 6699 6700
  *) Spelling mistake in C version of CAST-128.
     [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]

6701 6702 6703 6704 6705 6706 6707 6708 6709
  *) 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.
6710
     [Steve Henson]
6711

6712 6713 6714 6715 6716 6717 6718 6719 6720 6721
  *) 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.
     [Ulf Möller <ulf@fitug.de>]

6722 6723 6724 6725 6726 6727 6728
  *) 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
6729 6730 6731
  *) Correct Linux 1 recognition in config.
     [Ulf Möller <ulf@fitug.de>]

B
Ben Laurie 已提交
6732 6733 6734
  *) Remove pointless MD5 hash when using DSA keys in ca.
     [Anonymous <nobody@replay.com>]

6735 6736 6737 6738 6739
  *) 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
6740 6741 6742
  *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
     [Ben Laurie]

6743 6744 6745 6746
  *) 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
6747 6748 6749
  *) Remove C++ style comments from crypto/bn/bn_local.h.
     [Neil Costigan <neil.costigan@celocom.com>]

6750 6751 6752 6753 6754 6755 6756 6757
  *) 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]

6758 6759 6760 6761
  *) Add prototypes to X509 lookup/verify methods, fixing a bug in
     X509_LOOKUP_by_alias().
     [Ben Laurie]

B
Ben Laurie 已提交
6762 6763 6764
  *) Sort openssl functions by name.
     [Ben Laurie]

6765 6766 6767 6768 6769
  *) 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
6770 6771 6772
  *) Make _all_ *_free functions accept a NULL pointer.
     [Frans Heymans <fheymans@isaserver.be>]

B
Ben Laurie 已提交
6773 6774 6775 6776
  *) 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
6777 6778 6779
  *) 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
6780 6781 6782
  *) Don't blow it for numeric -newkey arguments to apps/req.
     [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]

B
Ben Laurie 已提交
6783 6784 6785
  *) Temp key "for export" tests were wrong in s3_srvr.c.
     [Anonymous <nobody@replay.com>]

6786 6787 6788 6789
  *) Add prototype for temp key callback functions
     SSL_CTX_set_tmp_{rsa,dh}_callback().
     [Ben Laurie]

6790 6791
  *) 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().
6792
     [Steve Henson]
6793

B
Ben Laurie 已提交
6794 6795 6796
  *) X509_name_add_entry() freed the wrong thing after an error.
     [Arne Ansper <arne@ats.cyber.ee>]

B
Ben Laurie 已提交
6797 6798 6799
  *) rsa_eay.c would attempt to free a NULL context.
     [Arne Ansper <arne@ats.cyber.ee>]

6800 6801 6802
  *) BIO_s_socket() had a broken should_retry() on Windoze.
     [Arne Ansper <arne@ats.cyber.ee>]

B
Ben Laurie 已提交
6803 6804 6805
  *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
     [Arne Ansper <arne@ats.cyber.ee>]

6806 6807 6808 6809 6810
  *) 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]

6811
  *) Fix the various library and apps files to free up pkeys obtained from
6812
     X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
6813 6814
     [Steve Henson]

B
Ben Laurie 已提交
6815 6816 6817 6818
  *) Fix reference counting in X509_PUBKEY_get(). This makes
     demos/maurice/example2.c work, amongst others, probably.
     [Steve Henson and Ben Laurie]

6819 6820 6821 6822
  *) 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
6823
     [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
6824

6825 6826 6827 6828
  *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
     BIT STRING wrapper always have zero unused bits.
     [Steve Henson]

6829 6830 6831
  *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
     [Steve Henson]

6832 6833 6834
  *) Make the top-level INSTALL documentation easier to understand.
     [Paul Sutton]

6835 6836 6837
  *) 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
6838 6839 6840 6841 6842 6843 6844 6845 6846
  *) 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
6847 6848 6849 6850 6851 6852 6853 6854 6855 6856 6857 6858 6859
  *) 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]

  *) Fix ASN1 macros so they can handle indefinite length construted 
     EXPLICIT tags. Some non standard certificates use these: they can now
     be read in.
     [Steve Henson]

6860 6861 6862 6863 6864 6865
  *) 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
     the new set of documenation files.
     [Ralf S. Engelschall]

6866 6867 6868 6869 6870 6871 6872 6873 6874
  *) 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]

6875 6876
  *) 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.
6877
     [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
6878

B
Ben Laurie 已提交
6879 6880 6881
  *) Autodetect FreeBSD3.
     [Ben Laurie]

6882 6883 6884 6885 6886 6887 6888
  *) 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
6889

B
Ben Laurie 已提交
6890 6891 6892 6893 6894 6895 6896
  *) 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]

6897 6898

 Changes between 0.9.1b and 0.9.1c  [23-Dec-1998]
R
Ralf S. Engelschall 已提交
6899

R
Ralf S. Engelschall 已提交
6900 6901
  *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 
     changed SSLeay to OpenSSL in version strings.
R
Ralf S. Engelschall 已提交
6902
     [Ralf S. Engelschall]
R
Ralf S. Engelschall 已提交
6903 6904 6905
  
  *) Some fixups to the top-level documents.
     [Paul Sutton]
6906

6907 6908 6909 6910 6911 6912
  *) 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
6913
     [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
6914 6915 6916 6917 6918 6919 6920 6921

  *) 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>]

6922 6923 6924 6925 6926 6927 6928 6929 6930 6931 6932 6933 6934 6935 6936 6937 6938 6939 6940 6941 6942 6943 6944 6945 6946 6947 6948
  *) 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]

6949
  *) Added various platform portability fixes.
R
Ralf S. Engelschall 已提交
6950
     [Mark J. Cox]
6951

R
Ralf S. Engelschall 已提交
6952
  *) The Genesis of the OpenSSL rpject:
6953
     We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
6954
     Young and Tim J. Hudson created while they were working for C2Net until
6955
     summer 1998.
R
Ralf S. Engelschall 已提交
6956
     [The OpenSSL Project]
6957
 
6958 6959

 Changes between 0.9.0b and 0.9.1b  [not released]
6960 6961 6962 6963 6964 6965 6966 6967 6968 6969 6970 6971 6972 6973 6974 6975 6976 6977 6978 6979 6980 6981 6982 6983 6984 6985 6986 6987 6988 6989 6990 6991 6992 6993 6994 6995 6996 6997 6998 6999 7000 7001 7002 7003 7004 7005 7006 7007 7008 7009 7010 7011 7012 7013 7014 7015 7016 7017 7018 7019 7020 7021 7022 7023 7024 7025 7026 7027 7028 7029 7030 7031 7032 7033 7034 7035 7036 7037 7038 7039 7040 7041 7042 7043 7044 7045 7046 7047 7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058 7059

  *) 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>]