gnutls_dh_get_group — API function


#include <gnutls/gnutls.h>

int gnutls_dh_get_group(gnutls_session_t session, gnutls_datum_t * raw_gen, gnutls_datum_t * raw_prime);


gnutls_session_t session

is a gnutls session

gnutls_datum_t * raw_gen

will hold the generator.

gnutls_datum_t * raw_prime

will hold the prime.


This function will return the group parameters used in the last Diffie-Hellman key exchange with the peer.  These are the prime and the generator used.  This function should be used for both anonymous and ephemeral Diffie-Hellman.  The output parameters must be freed with gnutls_free().

Note, that the prime and generator are exported as non-negative integers and may include a leading zero byte.


On success, GNUTLS_E_SUCCESS (0) is returned, otherwise an error code is returned.

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See Also

The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit


3.6.9 gnutls