@deftypefun {int} {gnutls_ocsp_req_set_nonce} (gnutls_ocsp_req_t @var{req}, unsigned int @var{critical}, const gnutls_datum_t * @var{nonce})
@var{req}: should contain a @code{gnutls_ocsp_req_t}  type

@var{critical}: critical flag, normally false.

@var{nonce}: the nonce data

This function will add an nonce extension to the OCSP request.
Calling this function multiple times will overwrite values from
earlier calls.

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned, otherwise a
negative error code is returned.
@end deftypefun