If OPENSSL_MAX_TLS1_2_CIPHER_LENGTH is set then limit the size of client
ciphersuites to this value. A value of 50 should be sufficient.

Document workarounds in CHANGES.

some servers.

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

Support for TLS/DTLS heartbeats.

Submitted by: Tianjie Mao <tjmao@tjmao.net>
Reviewed by: steve

Fix incorrect comma expressions and goto f_err as alert has been set.

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.

(Problem pointed out by Ben Murphy.)

Submitted by: Adam Langley

prohibit use of these ciphersuites for TLS < 1.2

Parse certificate request message and set digests appropriately.

Generate new TLS v1.2 format certificate verify message.

Keep handshake caches around for longer as they are needed for client auth.

Make sure message is long enough for signature algorithms.

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.

is picked up.

Submitted by: Mounir IDRASSI <mounir.idrassi@idrix.net>
Reviewed by: steve

Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939

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

Support for abbreviated handshakes when renegotiating.

1.0.0. Original fix was on 2007-Mar-09 and had the log message: "Fix kerberos
ciphersuite bugs introduced with PR:1336."

Submitted by: Doug Goldstein <cardoe@gentoo.org>, Steve.

Make no-dsa, no-ecdsa and no-rsa compile again.

Submitted by: steve@openssl.org

More robust fix and workaround for PR#1949. Don't try to work out if there
is any write pending data as this can be unreliable: always flush.

algorithm matches current and give error if compression is disabled and
server requests it (shouldn't happen unless server is broken).

work in SSLv3: initial handshake has no extensions but includes MCSV, if
server indicates RI support then renegotiation handshakes include RI.

NB: current MCSV value is bogus for testing only, will be updated when we
have an official value.

Change mismatch alerts to handshake_failure as required by spec.

Also have some debugging fprintfs so we can clearly see what is going on
if OPENSSL_RI_DEBUG is set.

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

Add extension support to DTLS code mainly using existing implementation for
TLS.

Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Add Renegotiation extension to DTLS, fix DTLS ClientHello processing bug.

of when a session is loaded. This will mean that applications that
just hold onto SSL_SESSION structures and never call d2i_SSL_SESSION()
will still work.

ID length is zero.