that are disabled for this session (as opposed to always disabled by
configuration).

is required by client or server. An application can decide which
certificate chain to present based on arbitrary criteria: for example
supported signature algorithms. Add very simple example to s_server.
This fixes many of the problems and restrictions of the existing client
certificate callback: for example you can now clear existing certificates
and specify the whole chain.

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.

Reviewed by: steve
Improved localisation of TLS extension handling and code tidy.

PR: 2538

Localize client hello extension parsing in t1_lib.c

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.

before rejecting multiple SGC restarts.

certificate chain instead of an X509 structure.

This makes it easier to enhance code in future and the chain
output functions have access to the CERT_PKEY structure being
used.

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: steve

Update maximum message size for certifiate verify messages to support
4096 bit RSA keys again as TLS v1.2 messages is two bytes longer.

Reviewed by: steve

Fix memory leaks.

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

Support for TLS/DTLS heartbeats.

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

- remove some unncessary SSL_err and permit
an srp user callback to allow a worker to obtain
a user verifier.

- cleanup and comments in s_server and demonstration
for asynchronous srp user lookup

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

Make SRP conformant to rfc 5054.

Changes are:

- removal of the addition state after client hello
- removal of all pre-rfc srp alert ids
- sending a fatal alert when there is no srp extension but when the
server wants SRP
- removal of unnecessary code in the client.

Submitted by: Adam Langley

Submitted by: Alexei Khlebnikov <alexei.khlebnikov@opera.com>
Reviewed by: steve

OOM checking. Leak in OOM fix. Fall-through comment. Duplicate code
elimination.

algorithms extension (including everything we support). Swicth to new
signature format where needed and relax ECC restrictions.

Not TLS v1.2 client certifcate support yet but client will handle case
where a certificate is requested and we don't have one.

signature algorithms extension and correct signature format for
server key exchange.

All ciphersuites should now work on the server but no client support and
no client certificate support yet.

is picked up.