bssh2 is a client-side C library implementing the SSH2 protocol
http://www.libssh2.org/CapabilitiesandFeaturesKeyExchangeMethods:diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1HostkeyTypes:ssh-rsa,ssh-dssCiphers:aes256-cbc