Alexandre Lision | 7fd5d3d | 2013-12-04 13:06:40 -0500 | [diff] [blame] | 1 | /* |
| 2 | --------------------------------------------------------------------------- |
| 3 | Copyright (c) 1998-2010, Brian Gladman, Worcester, UK. All rights reserved. |
| 4 | |
| 5 | The redistribution and use of this software (with or without changes) |
| 6 | is allowed without the payment of fees or royalties provided that: |
| 7 | |
| 8 | source code distributions include the above copyright notice, this |
| 9 | list of conditions and the following disclaimer; |
| 10 | |
| 11 | binary distributions include the above copyright notice, this list |
| 12 | of conditions and the following disclaimer in their documentation. |
| 13 | |
| 14 | This software is provided 'as is' with no explicit or implied warranties |
| 15 | in respect of its operation, including, but not limited to, correctness |
| 16 | and fitness for purpose. |
| 17 | --------------------------------------------------------------------------- |
| 18 | Issue Date: 20/12/2007 |
| 19 | |
| 20 | This file contains the definitions required to use AES (Rijndael) in C++. |
| 21 | */ |
| 22 | |
| 23 | #ifndef _AESCPP_H |
| 24 | #define _AESCPP_H |
| 25 | |
| 26 | #include "aes.h" |
| 27 | |
| 28 | #if defined( AES_ENCRYPT ) |
| 29 | |
| 30 | class AESencrypt |
| 31 | { |
| 32 | public: |
| 33 | aes_encrypt_ctx cx[1]; |
| 34 | AESencrypt(void) { aes_init(); }; |
| 35 | #if defined(AES_128) |
| 36 | AESencrypt(const unsigned char key[]) |
| 37 | { aes_encrypt_key128(key, cx); } |
| 38 | AES_RETURN key128(const unsigned char key[]) |
| 39 | { return aes_encrypt_key128(key, cx); } |
| 40 | #endif |
| 41 | #if defined(AES_192) |
| 42 | AES_RETURN key192(const unsigned char key[]) |
| 43 | { return aes_encrypt_key192(key, cx); } |
| 44 | #endif |
| 45 | #if defined(AES_256) |
| 46 | AES_RETURN key256(const unsigned char key[]) |
| 47 | { return aes_encrypt_key256(key, cx); } |
| 48 | #endif |
| 49 | #if defined(AES_VAR) |
| 50 | AES_RETURN key(const unsigned char key[], int key_len) |
| 51 | { return aes_encrypt_key(key, key_len, cx); } |
| 52 | #endif |
| 53 | AES_RETURN encrypt(const unsigned char in[], unsigned char out[]) const |
| 54 | { return aes_encrypt(in, out, cx); } |
| 55 | #ifndef AES_MODES |
| 56 | AES_RETURN ecb_encrypt(const unsigned char in[], unsigned char out[], int nb) const |
| 57 | { while(nb--) |
| 58 | { aes_encrypt(in, out, cx), in += AES_BLOCK_SIZE, out += AES_BLOCK_SIZE; } |
| 59 | } |
| 60 | #endif |
| 61 | #ifdef AES_MODES |
| 62 | AES_RETURN mode_reset(void) { return aes_mode_reset(cx); } |
| 63 | |
| 64 | AES_RETURN ecb_encrypt(const unsigned char in[], unsigned char out[], int nb) const |
| 65 | { return aes_ecb_encrypt(in, out, nb, cx); } |
| 66 | |
| 67 | AES_RETURN cbc_encrypt(const unsigned char in[], unsigned char out[], int nb, |
| 68 | unsigned char iv[]) const |
| 69 | { return aes_cbc_encrypt(in, out, nb, iv, cx); } |
| 70 | |
| 71 | AES_RETURN cfb_encrypt(const unsigned char in[], unsigned char out[], int nb, |
| 72 | unsigned char iv[]) |
| 73 | { return aes_cfb_encrypt(in, out, nb, iv, cx); } |
| 74 | |
| 75 | AES_RETURN cfb_decrypt(const unsigned char in[], unsigned char out[], int nb, |
| 76 | unsigned char iv[]) |
| 77 | { return aes_cfb_decrypt(in, out, nb, iv, cx); } |
| 78 | |
| 79 | AES_RETURN ofb_crypt(const unsigned char in[], unsigned char out[], int nb, |
| 80 | unsigned char iv[]) |
| 81 | { return aes_ofb_crypt(in, out, nb, iv, cx); } |
| 82 | |
| 83 | typedef void ctr_fn(unsigned char ctr[]); |
| 84 | |
| 85 | AES_RETURN ctr_crypt(const unsigned char in[], unsigned char out[], int nb, |
| 86 | unsigned char iv[], ctr_fn cf) |
| 87 | { return aes_ctr_crypt(in, out, nb, iv, cf, cx); } |
| 88 | |
| 89 | #endif |
| 90 | |
| 91 | }; |
| 92 | |
| 93 | #endif |
| 94 | |
| 95 | #if defined( AES_DECRYPT ) |
| 96 | |
| 97 | class AESdecrypt |
| 98 | { |
| 99 | public: |
| 100 | aes_decrypt_ctx cx[1]; |
| 101 | AESdecrypt(void) { aes_init(); }; |
| 102 | #if defined(AES_128) |
| 103 | AESdecrypt(const unsigned char key[]) |
| 104 | { aes_decrypt_key128(key, cx); } |
| 105 | AES_RETURN key128(const unsigned char key[]) |
| 106 | { return aes_decrypt_key128(key, cx); } |
| 107 | #endif |
| 108 | #if defined(AES_192) |
| 109 | AES_RETURN key192(const unsigned char key[]) |
| 110 | { return aes_decrypt_key192(key, cx); } |
| 111 | #endif |
| 112 | #if defined(AES_256) |
| 113 | AES_RETURN key256(const unsigned char key[]) |
| 114 | { return aes_decrypt_key256(key, cx); } |
| 115 | #endif |
| 116 | #if defined(AES_VAR) |
| 117 | AES_RETURN key(const unsigned char key[], int key_len) |
| 118 | { return aes_decrypt_key(key, key_len, cx); } |
| 119 | #endif |
| 120 | AES_RETURN decrypt(const unsigned char in[], unsigned char out[]) const |
| 121 | { return aes_decrypt(in, out, cx); } |
| 122 | #ifndef AES_MODES |
| 123 | AES_RETURN ecb_decrypt(const unsigned char in[], unsigned char out[], int nb) const |
| 124 | { while(nb--) |
| 125 | { aes_decrypt(in, out, cx), in += AES_BLOCK_SIZE, out += AES_BLOCK_SIZE; } |
| 126 | } |
| 127 | #endif |
| 128 | #ifdef AES_MODES |
| 129 | |
| 130 | AES_RETURN ecb_decrypt(const unsigned char in[], unsigned char out[], int nb) const |
| 131 | { return aes_ecb_decrypt(in, out, nb, cx); } |
| 132 | |
| 133 | AES_RETURN cbc_decrypt(const unsigned char in[], unsigned char out[], int nb, |
| 134 | unsigned char iv[]) const |
| 135 | { return aes_cbc_decrypt(in, out, nb, iv, cx); } |
| 136 | #endif |
| 137 | }; |
| 138 | |
| 139 | #endif |
| 140 | |
| 141 | #endif |