@deftypefun {int} {gnutls_srtp_set_mki} (gnutls_session_t @var{session}, const gnutls_datum_t * @var{mki}) @var{session}: is a @code{gnutls_session_t} type. @var{mki}: holds the MKI This function sets the Master Key Identifier, to be used by this session (if any). @strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned, otherwise a negative error code is returned. Since 3.1.4 @end deftypefun