gnutls_dh_get_prime_bits - Man Page

#include <gnutls/gnutls.h>

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.

Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org

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