gnutls_cipher_add_auth(3) gnutls gnutls_cipher_add_auth(3) NAME gnutls_cipher_add_auth - API function SYNOPSIS #include 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 . Home page: https://www.gnutls.org COPYRIGHT Copyright (C) 2001-2023 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 https://www.gnutls.org/manual/ gnutls 3.8.5 gnutls_cipher_add_auth(3)