1 /* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */
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2 /* ====================================================================
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3 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in
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14 * the documentation and/or other materials provided with the
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17 * 3. All advertising materials mentioning features or use of this
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18 * software must display the following acknowledgment:
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19 * "This product includes software developed by the OpenSSL Project
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20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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23 * endorse or promote products derived from this software without
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24 * prior written permission. For written permission, please contact
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25 * openssl-core@openssl.org.
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27 * 5. Products derived from this software may not be called "OpenSSL"
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28 * nor may "OpenSSL" appear in their names without prior written
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29 * permission of the OpenSSL Project.
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31 * 6. Redistributions of any form whatsoever must retain the following
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33 * "This product includes software developed by the OpenSSL Project
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34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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47 * OF THE POSSIBILITY OF SUCH DAMAGE.
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48 * ====================================================================
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52 #ifndef HEADER_AES_H
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53 #define HEADER_AES_H
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55 #include <openssl/opensslconf.h>
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57 #ifdef OPENSSL_NO_AES
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58 #error AES is disabled.
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63 #define AES_ENCRYPT 1
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64 #define AES_DECRYPT 0
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66 /* Because array size can't be a const in C, the following two are macros.
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67 Both sizes are in bytes. */
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68 #define AES_MAXNR 14
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69 #define AES_BLOCK_SIZE 16
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75 /* This should be a hidden type, but EVP requires that the size be known */
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78 unsigned long rd_key[4 *(AES_MAXNR + 1)];
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80 unsigned int rd_key[4 *(AES_MAXNR + 1)];
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84 typedef struct aes_key_st AES_KEY;
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86 const char *AES_options(void);
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88 int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
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90 int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
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93 void AES_encrypt(const unsigned char *in, unsigned char *out,
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94 const AES_KEY *key);
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95 void AES_decrypt(const unsigned char *in, unsigned char *out,
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96 const AES_KEY *key);
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98 void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
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99 const AES_KEY *key, const int enc);
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100 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
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101 size_t length, const AES_KEY *key,
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102 unsigned char *ivec, const int enc);
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103 void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
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104 size_t length, const AES_KEY *key,
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105 unsigned char *ivec, int *num, const int enc);
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106 void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
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107 size_t length, const AES_KEY *key,
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108 unsigned char *ivec, int *num, const int enc);
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109 void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
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110 size_t length, const AES_KEY *key,
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111 unsigned char *ivec, int *num, const int enc);
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112 void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
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113 size_t length, const AES_KEY *key,
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114 unsigned char *ivec, int *num);
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115 void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
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116 size_t length, const AES_KEY *key,
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117 unsigned char ivec[AES_BLOCK_SIZE],
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118 unsigned char ecount_buf[AES_BLOCK_SIZE],
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119 unsigned int *num);
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120 /* NB: the IV is _two_ blocks long */
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121 void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
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122 size_t length, const AES_KEY *key,
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123 unsigned char *ivec, const int enc);
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124 /* NB: the IV is _four_ blocks long */
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125 void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out,
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126 size_t length, const AES_KEY *key,
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127 const AES_KEY *key2, const unsigned char *ivec,
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130 int AES_wrap_key(AES_KEY *key, const unsigned char *iv,
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131 unsigned char *out,
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132 const unsigned char *in, unsigned int inlen);
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133 int AES_unwrap_key(AES_KEY *key, const unsigned char *iv,
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134 unsigned char *out,
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135 const unsigned char *in, unsigned int inlen);
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142 #endif /* !HEADER_AES_H */
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