determine_cert_compression() and certificate_transparency() do not work in debug mode, since tls_sockets() writes debugging messages to stdout. This commit fixes the problem by having determine_cert_compression() and certificate_transparency() return their results using a global variable rather than writing the results to stdout and having having run_server_defaults() catch the output.
There is at least one server that includes a new session ticket in the same packet as the Finished message. This confuses check_tls_serverhellodone() since the new session ticket is encrypted under the application traffic keys rather than the handshake keys. check_tls_serverhellodone(), being unable to decrypt the new session ticket reports a failure and does not return any of the decrypted data.
This commit fixes the problem by having check_tls_serverhellodone() simply return (or ignore) any data that appears after the Finished message. If such data is returned, then tls_sockets() derives the application traffic keys and decrypts it so that it can be parsed by parse_tls_serverhello().
This commit fixes the way that ciphers are graded by only calling set_ciph_str_score() from neat_list() if the cipher suite is supported (i.e., if how2show is true).
This fixes#2203. When used -E with -9 and --show-each the grading wasn't
correct as all ciphers printed were included in the grading verdict instead
of just the ones available.
This commit modifies ciphers_by_strength() and run_server_preference() so that the message indicating that ciphers are listed by strength is not printed until the list of supported ciphers has been determined. This is in support of #1311, as it will allow the message to be modified based on the set of supported ciphers.
This commit also modifies both ciphers_by_strength() and cipher_pref_check() so that the order in which ciphers are listed (by strength or server preference) is not printed if the server does not support the protocol.