lib/gnutls_cipher_int.h

   1 /*
   2  * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2010 Free
   3  * Software Foundation, Inc.
   4  *
   5  * Author: Nikos Mavrogiannopoulos
   6  *
   7  * This file is part of GNUTLS.
   8  *
   9  * The GNUTLS library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public License
  11  * as published by the Free Software Foundation; either version 2.1 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  22  * USA
  23  *
  24  */
  25
  26 #ifndef GNUTLS_CIPHER_INT
  27 # define GNUTLS_CIPHER_INT
  28
  29 #include <gnutls/crypto.h>
  30
  31 extern int crypto_cipher_prio;
  32 extern gnutls_crypto_cipher_st _gnutls_cipher_ops;
  33
  34 typedef struct {
  35   const gnutls_crypto_single_cipher_st* cc;
  36   void* ctx;
  37 } reg_hd;
  38
  39 typedef struct {
  40         int registered; /* true or false(0) */
  41         union {
  42                 void* gc; /* when not registered */
  43                 reg_hd rh; /* when registered */
  44         } hd;
  45 } cipher_hd_st;
  46
  47 int _gnutls_cipher_init (cipher_hd_st*, gnutls_cipher_algorithm_t cipher,
  48                                  const gnutls_datum_t * key,
  49                                  const gnutls_datum_t * iv);
  50 int _gnutls_cipher_encrypt (const cipher_hd_st *handle, void *text, int textlen);
  51 int _gnutls_cipher_decrypt (const cipher_hd_st *handle, void *ciphertext,
  52                             int ciphertextlen);
  53 void _gnutls_cipher_deinit (cipher_hd_st* handle);
  54
  55 #endif /* GNUTLS_CIPHER_INT */