(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

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 hang when presented with a client hello record length exceeding
255 bytes but will work with longer client hellos if the TLS record version
in client hello does not exceed TLS v1.0. Unfortunately this doesn't fix all
cases...

PR: 2791
Submitted by: Ben Noordhuis

PR: 2790
Submitted by: Alexei Khlebnikov

PR: 2538

countermeasure [from HEAD].

PR: 2778

s_server.

(backport from HEAD)

(backport from HEAD)

(backport from HEAD)

RFC5114 parameters and X9.42 DH public and private keys.
(backport from HEAD)

Correct some parameter values.
(backport from HEAD)

(backport from HEAD)

(backport from HEAD)

Localize client hello extension parsing in t1_lib.c
(backport from HEAD)

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.
(backport from HEAD)

add utility functions to t1_lib.c to check if EC certificates and parameters
are consistent with peer.
(backport from HEAD)

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.
(backport from HEAD)

extensions to s_client and s_server to print out retrieved valued.

Extend CERT structure to cache supported signature algorithm data.
(backport from HEAD)

(backport from HEAD)

between NIDs and the more common NIST names such as "P-256". Enhance
ecparam utility and ECC method to recognise the NIST names for curves.
(backport from HEAD)

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.
(backport from HEAD)

Backport: Revise ssl code to use CERT_PKEY structure when outputting a certificate chain (from HEAD)