@deftypefun {int} {gnutls_cipher_tag} (gnutls_cipher_hd_t @var{handle}, void * @var{tag}, size_t @var{tag_size})
@var{handle}: is a @code{gnutls_cipher_hd_t}  type

@var{tag}: will hold the tag

@var{tag_size}: the length of the tag to return

This function operates on authenticated encryption with
associated data (AEAD) ciphers and will return the
output tag.

@strong{Returns:} Zero or a negative error code on error.

@strong{Since:} 3.0
@end deftypefun