@deftypefun {int} {gnutls_certificate_set_known_dh_params} (gnutls_certificate_credentials_t @var{res}, gnutls_sec_param_t @var{sec_param})

@var{res}: is a gnutls_certificate_credentials_t type

@var{sec_param}: is an option of the @code{gnutls_sec_param_t}  enumeration

This function will set the Diffie-Hellman parameters for a

certificate server to use. These parameters will be used in

Ephemeral Diffie-Hellman cipher suites and will be selected from

the FFDHE set of RFC7919 according to the security level provided.

@strong{Deprecated:} This function is unnecessary and discouraged on GnuTLS 3.6.0

or later. Since 3.6.0, DH parameters are negotiated

following RFC7919.

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned, otherwise a

negative error value.

@strong{Since:} 3.5.6

@end deftypefun