gnutls_dh_get_prime_bits − API function


);int gnutls_dh_get_prime_bits(gnutls_session_t session

gnutls_session_t session
            is a gnutls session

This function will return the bits of the prime used in the
last Diffie−Hellman key exchange with the peer.  Should be
used for both anonymous and ephemeral Diffie−Hellman.  Note
that some ciphers, like RSA and DSA without DHE, do not use
a Diffie−Hellman key exchange, and then this function will
return 0.

The Diffie−Hellman bit strength is returned, or 0 if no
Diffie−Hellman key exchange was done, or a negative error
code on failure.

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