crypto/openssl-0.9.7d/include/openssl/aes.h

   1 /* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */
   2 /* ====================================================================
   3  * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the
  15  *    distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this
  18  *    software must display the following acknowledgment:
  19  *    "This product includes software developed by the OpenSSL Project
  20  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  21  *
  22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  23  *    endorse or promote products derived from this software without
  24  *    prior written permission. For written permission, please contact
  25  *    openssl-core@openssl.org.
  26  *
  27  * 5. Products derived from this software may not be called "OpenSSL"
  28  *    nor may "OpenSSL" appear in their names without prior written
  29  *    permission of the OpenSSL Project.
  30  *
  31  * 6. Redistributions of any form whatsoever must retain the following
  32  *    acknowledgment:
  33  *    "This product includes software developed by the OpenSSL Project
  34  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  47  * OF THE POSSIBILITY OF SUCH DAMAGE.
  48  * ====================================================================
  49  *
  50  */
  51
  52 #ifndef HEADER_AES_H
  53 #define HEADER_AES_H
  54
  55 #ifdef OPENSSL_NO_AES
  56 #error AES is disabled.
  57 #endif
  58
  59 #define AES_ENCRYPT     1
  60 #define AES_DECRYPT     0
  61
  62 /* Because array size can't be a const in C, the following two are macros.
  63    Both sizes are in bytes. */
  64 #define AES_MAXNR 14
  65 #define AES_BLOCK_SIZE 16
  66
  67 #ifdef  __cplusplus
  68 extern "C" {
  69 #endif
  70
  71 /* This should be a hidden type, but EVP requires that the size be known */
  72 struct aes_key_st {
  73     unsigned long rd_key[4 *(AES_MAXNR + 1)];
  74     int rounds;
  75 };
  76 typedef struct aes_key_st AES_KEY;
  77
  78 const char *AES_options(void);
  79
  80 int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
  81         AES_KEY *key);
  82 int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
  83         AES_KEY *key);
  84
  85 void AES_encrypt(const unsigned char *in, unsigned char *out,
  86         const AES_KEY *key);
  87 void AES_decrypt(const unsigned char *in, unsigned char *out,
  88         const AES_KEY *key);
  89
  90 void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
  91         const AES_KEY *key, const int enc);
  92 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
  93         const unsigned long length, const AES_KEY *key,
  94         unsigned char *ivec, const int enc);
  95 void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
  96         const unsigned long length, const AES_KEY *key,
  97         unsigned char *ivec, int *num, const int enc);
  98 void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
  99         const unsigned long length, const AES_KEY *key,
 100         unsigned char *ivec, int *num);
 101 void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
 102         const unsigned long length, const AES_KEY *key,
 103         unsigned char ivec[AES_BLOCK_SIZE],
 104         unsigned char ecount_buf[AES_BLOCK_SIZE],
 105         unsigned int *num);
 106
 107
 108 #ifdef  __cplusplus
 109 }
 110 #endif
 111
 112 #endif /* !HEADER_AES_H */