@deftypefun {unsigned} {gnutls_sign_is_secure2} (gnutls_sign_algorithm_t @var{algorithm}, unsigned int @var{flags})
@var{algorithm}: is a sign algorithm

@var{flags}: zero or @code{GNUTLS_SIGN_FLAG_SECURE_FOR_CERTS} 


@strong{Returns:} Non-zero if the provided signature algorithm is considered to be secure.
@end deftypefun