details in s_client.

Also add ctrl to set client certificate types. If not used sensible values
will be included based on supported signature algorithms: for example if
we don't include any DSA signing algorithms the DSA certificate type is
omitted.

Fix restriction in old code where certificate types would be truncated
if it exceeded TLS_CT_NUMBER.

the permitted signature algorithms for server and client authentication
are the same but it is now possible to set different algorithms for client
authentication only.

appropriate checks in tls1_check_chain.

the certificate can be used for (if anything). Set valid_flags field
in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
to have similar checks in it.

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

TLS v1.2. These are sent as an extension for clients and during a certificate
request for servers.

TODO: add support for shared signature algorithms, respect shared algorithms
when deciding which ciphersuites and certificates to permit.

Submitted by: PK <runningdoglackey@yahoo.com>

Correct ciphersuite signature algorithm definitions.

(TLS 1.2 clients could end up negotiating these with an OpenSSL server
with TLS 1.2 disabled, which is problematic.)

Submitted by: Adam Langley

enabled instead of requiring an application to hard code a (possibly
inappropriate) parameter set and delve into EC internals we just
automatically use the preferred curve.

add utility functions to t1_lib.c to check if EC certificates and parameters
are consistent with peer.

Tidy some code up.

Don't allocate a structure to handle ECC extensions when it is used for
default values.

Make supported curves configurable.

Add ctrls to retrieve shared curves: not fully integrated with rest of
ECC code yet.

extensions to s_client and s_server to print out retrieved valued.

Extend CERT structure to cache supported signature algorithm data.

Submitted by: Peter Sylvester <peter.sylvester@edelweb.fr>

Fix srp extension.

structure.

Before this the only way to add a custom chain was in the parent SSL_CTX
(which is shared by all key types and SSL structures) or rely on auto
chain building (which is performed on each handshake) from the trust store.

The cipher definitions of these ciphersuites have been around since SSLeay
but were always disabled. Now OpenSSL supports DH certificates they can be
finally enabled.

Various additional changes were needed to make them work properly: many
unused fixed DH sections of code were untested.

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Support for TLS/DTLS heartbeats.

New function to retrieve compression method from SSL_SESSION structure.

Delete SSL_SESSION_get_id_len and SSL_SESSION_get0_id functions
as they duplicate functionality of SSL_SESSION_get_id. Note: these functions
have never appeared in any release version of OpenSSL.

Submitted by: Peter Sylvester <peter.sylvester@edelweb.fr>
Reviewed by: steve

Remove unnecessary code for srp and to add some comments to
s_client.

- the callback to provide a user during client connect is
no longer necessary since rfc 5054 a connection attempt
with an srp cipher and no user is terminated when the
cipher is acceptable

- comments to indicate in s_client the (non-)usefulness of
th primalaty tests for non known group parameters.

Submitted by: Bob Buckholz <bbuckholz@google.com>

Submitted by: Adam Langley

invocation field.

Add complete support for AES GCM ciphersuites including all those in
RFC5288 and RFC5289.

prohibit use of these ciphersuites for TLS < 1.2

checking added, SHA256 PRF support added.

At present only RSA key exchange ciphersuites work with TLS v1.2 as the
new signature format is not yet implemented.

(only s->new_session).

Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Support for abbreviated handshakes when renegotiating.

Submitted by: Tomas Mraz <tmraz@redhat.com>
Approved by: steve@openssl.org

Avoid potential doublefree and reuse of freed handshake_buffer.