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.
As jsonID is not set by run_crime, make the fileout invocation for
servers supporting only TLS 1.3 use the literal "CRIME_TLS" instead.
Previously running testssl with CSV or JSON output would produce an item
with the wrong ID.
Currently run_server_preference() will stop if it cannot determine whether the server enforces a cipher preference order.
This commit changes run_server_preference() so it will continue running even if this case, so that the list of ciphers supported with each TLS protocol is provided. Since it is not known whether the server enforces a cipher order, the list of supported ciphers is ordered by strength.
See #2127. the line seems very long though.
Note: this was previously commited as #2184 but as there were two mistakes
and one other thing which could be improved I decided to make a hard reset.
Apologize if it caused inconvenience.
OpenSSL 3.0.0 and later supports specifying the FFDHE groups from RFC 7919 in the "-groups" (or "-curves") option of s_client.
This commit modifies find_openssl_binary() to check whether $OPENSSL supports this. This information is then used by run_client_simulation(), if client simulation testing is being performed using $OPENSSL. If the "curves" for a client include FFDHE groups, then they will be included in the simulated ClientHello.
