Even if EC and DH are disabled then we may still be able to use TLSv1.3
if we have groups that have been plugged in by an external provider.
Fixes#13767
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13916)
One of the new tests uses a DH based ciphersuite. That test should be
disabled if DH is disabled.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2217)
Check that signatures actually work, and that an incorrect signature
results in a handshake failure.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
