NAME

       gnutls_cipher_add_auth - API function

SYNOPSIS

       #include <gnutls/crypto.h>

       int gnutls_cipher_add_auth(gnutls_cipher_hd_t handle, const void * ptext, size_t ptext_size);

ARGUMENTS

       gnutls_cipher_hd_t handle
                   is a gnutls_cipher_hd_t type

       const void * ptext
                   the data to be authenticated

       size_t ptext_size
                   the length of the data

DESCRIPTION

       This  function  operates on authenticated encryption with associated data (AEAD) ciphers and authenticate
       the input data. This function can only be called once and before any encryption operations.

RETURNS

       Zero or a negative error code on error.

SINCE

       3.0

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2022 Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without modification, are permitted in any medium  without
       royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for  gnutls  is  maintained as a Texinfo manual.  If the /usr/share/doc/gnutls/
       directory does not contain the HTML form visit

       http://www.gnutls.org/manual/