Note: the RAND_bytes() manual page says:
 RAND_bytes() puts num cryptographically strong pseudo-random bytes into buf.
It does not talk about using the previous contents of buf so we are working
as documented.

code checking tools.
PR: 1499

EVP_CIPHER_CTX structure which may not be the same as the underlying
cipher key length for variable length ciphers.

BIO and BIO_gets().

EHLO or CAPABILITY handshake before sending STARTTLS

Submitted by: Goetz Babin-Ebell <goetz@shomitefo.de>

PR: 1152
Submitted by: Mike Frysinger <vapier@gentoo.org>

PR: 1277
Submitted by: Mike Frysinger <vapier@gentoo.org>

PR: 1459
Submitted by: tnitschke@innominate.com
Reviewed by: steve@openssl.org

ciphersuite string such as "DEFAULT:RSA" cannot enable
authentication-only ciphersuites.

Submitted by: Victor Duchovni