lib/gnutls_cipher_int.h

   1 /*
   2  * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2008 Free Software Foundation
   3  *
   4  * Author: Nikos Mavrogiannopoulos
   5  *
   6  * This file is part of GNUTLS.
   7  *
   8  * The GNUTLS library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public License
  10  * as published by the Free Software Foundation; either version 2.1 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  21  * USA
  22  *
  23  */
  24
  25 #ifndef GNUTLS_CIPHER_INT
  26 # define GNUTLS_CIPHER_INT
  27
  28 #include <gnutls/crypto.h>
  29
  30 extern int crypto_cipher_prio;
  31 extern gnutls_crypto_cipher_st _gnutls_cipher_ops;
  32
  33 typedef struct {
  34   gnutls_crypto_single_cipher_st* cc;
  35   void* ctx;
  36 } reg_hd;
  37
  38 typedef struct {
  39         int registered; /* true or false(0) */
  40         union {
  41                 void* gc; /* when not registered */
  42                 reg_hd rh; /* when registered */
  43         } hd;
  44 } cipher_hd_st;
  45
  46 int _gnutls_cipher_init (cipher_hd_st*, gnutls_cipher_algorithm_t cipher,
  47                                  const gnutls_datum_t * key,
  48                                  const gnutls_datum_t * iv);
  49 int _gnutls_cipher_encrypt (const cipher_hd_st *handle, void *text, int textlen);
  50 int _gnutls_cipher_decrypt (const cipher_hd_st *handle, void *ciphertext,
  51                             int ciphertextlen);
  52 void _gnutls_cipher_deinit (cipher_hd_st* handle);
  53
  54 #endif /* GNUTLS_CIPHER_INT */