2 ---------------------------------------------------------------------------
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3 Copyright (c) 1998-2008, Brian Gladman, Worcester, UK. All rights reserved.
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7 The redistribution and use of this software (with or without changes)
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8 is allowed without the payment of fees or royalties provided that:
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10 1. source code distributions include the above copyright notice, this
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11 list of conditions and the following disclaimer;
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13 2. binary distributions include the above copyright notice, this list
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14 of conditions and the following disclaimer in their documentation;
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16 3. the name of the copyright holder is not used to endorse products
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17 built using this software without specific written permission.
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21 This software is provided 'as is' with no explicit or implied warranties
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22 in respect of its properties, including, but not limited to, correctness
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23 and/or fitness for purpose.
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24 ---------------------------------------------------------------------------
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25 Issue Date: 20/12/2007
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27 This file contains the definitions required to use AES (Rijndael) in C++.
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35 #if defined( AES_ENCRYPT )
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40 AESencrypt(void) { aes_init(); };
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41 #if defined(AES_128)
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42 AESencrypt(const unsigned char key[])
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43 { aes_encrypt_key128(key, cx); }
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44 inline AES_RETURN key128(const unsigned char key[])
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45 { return aes_encrypt_key128(key, cx); }
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47 #if defined(AES_192)
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48 inline AES_RETURN key192(const unsigned char key[])
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49 { return aes_encrypt_key192(key, cx); }
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51 #if defined(AES_256)
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52 inline AES_RETURN key256(const unsigned char key[])
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53 { return aes_encrypt_key256(key, cx); }
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55 #if defined(AES_VAR)
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56 inline AES_RETURN key(const unsigned char key[], int key_len)
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57 { return aes_encrypt_key(key, key_len, cx); }
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59 inline AES_RETURN encrypt(const unsigned char in[], unsigned char out[]) const
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60 { return aes_encrypt(in, out, cx); }
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62 inline AES_RETURN ecb_encrypt(const unsigned char in[], unsigned char out[], int nb) const
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64 { aes_encrypt(in, out, cx), in += AES_BLOCK_SIZE, out += AES_BLOCK_SIZE; }
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68 inline AES_RETURN mode_reset(void) { return aes_mode_reset(cx); }
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70 inline AES_RETURN ecb_encrypt(const unsigned char in[], unsigned char out[], int nb) const
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71 { return aes_ecb_encrypt(in, out, nb, cx); }
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73 inline AES_RETURN cbc_encrypt(const unsigned char in[], unsigned char out[], int nb,
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74 unsigned char iv[]) const
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75 { return aes_cbc_encrypt(in, out, nb, iv, cx); }
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77 inline AES_RETURN cfb_encrypt(const unsigned char in[], unsigned char out[], int nb,
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79 { return aes_cfb_encrypt(in, out, nb, iv, cx); }
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81 inline AES_RETURN cfb_decrypt(const unsigned char in[], unsigned char out[], int nb,
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83 { return aes_cfb_decrypt(in, out, nb, iv, cx); }
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85 inline AES_RETURN ofb_crypt(const unsigned char in[], unsigned char out[], int nb,
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87 { return aes_ofb_crypt(in, out, nb, iv, cx); }
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89 typedef void ctr_fn(unsigned char ctr[]);
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91 inline AES_RETURN ctr_crypt(const unsigned char in[], unsigned char out[], int nb,
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92 unsigned char iv[], ctr_fn cf)
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93 { return aes_ctr_crypt(in, out, nb, iv, cf, cx); }
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98 aes_encrypt_ctx cx[1];
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103 #if defined( AES_DECRYPT )
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108 AESdecrypt(void) { aes_init(); };
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109 #if defined(AES_128)
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110 AESdecrypt(const unsigned char key[])
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111 { aes_decrypt_key128(key, cx); }
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112 inline AES_RETURN key128(const unsigned char key[])
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113 { return aes_decrypt_key128(key, cx); }
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115 #if defined(AES_192)
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116 inline AES_RETURN key192(const unsigned char key[])
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117 { return aes_decrypt_key192(key, cx); }
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119 #if defined(AES_256)
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120 inline AES_RETURN key256(const unsigned char key[])
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121 { return aes_decrypt_key256(key, cx); }
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123 #if defined(AES_VAR)
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124 inline AES_RETURN key(const unsigned char key[], int key_len)
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125 { return aes_decrypt_key(key, key_len, cx); }
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127 inline AES_RETURN decrypt(const unsigned char in[], unsigned char out[]) const
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128 { return aes_decrypt(in, out, cx); }
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130 inline AES_RETURN ecb_decrypt(const unsigned char in[], unsigned char out[], int nb) const
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132 { aes_decrypt(in, out, cx), in += AES_BLOCK_SIZE, out += AES_BLOCK_SIZE; }
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137 inline AES_RETURN ecb_decrypt(const unsigned char in[], unsigned char out[], int nb) const
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138 { return aes_ecb_decrypt(in, out, nb, cx); }
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140 inline AES_RETURN cbc_decrypt(const unsigned char in[], unsigned char out[], int nb,
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141 unsigned char iv[]) const
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142 { return aes_cbc_decrypt(in, out, nb, iv, cx); }
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145 aes_decrypt_ctx cx[1];
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