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 © 2001-2021 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/