Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 | #include <openssl/opensslconf.h> |
| 56 | |
| 57 | #ifdef OPENSSL_NO_AES |
| 58 | #error AES is disabled. |
| 59 | #endif |
| 60 | |
| 61 | #include <stddef.h> |
| 62 | |
| 63 | #define AES_ENCRYPT 1 |
| 64 | #define AES_DECRYPT 0 |
| 65 | |
| 66 | /* Because array size can't be a const in C, the following two are macros. |
| 67 | Both sizes are in bytes. */ |
| 68 | #define AES_MAXNR 14 |
| 69 | #define AES_BLOCK_SIZE 16 |
| 70 | |
| 71 | #ifdef __cplusplus |
| 72 | extern "C" { |
| 73 | #endif |
| 74 | |
| 75 | /* This should be a hidden type, but EVP requires that the size be known */ |
| 76 | struct aes_key_st { |
| 77 | #ifdef AES_LONG |
| 78 | unsigned long rd_key[4 *(AES_MAXNR + 1)]; |
| 79 | #else |
| 80 | unsigned int rd_key[4 *(AES_MAXNR + 1)]; |
| 81 | #endif |
| 82 | int rounds; |
| 83 | }; |
| 84 | typedef struct aes_key_st AES_KEY; |
| 85 | |
| 86 | const char *AES_options(void); |
| 87 | |
| 88 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits, |
| 89 | AES_KEY *key); |
| 90 | int AES_set_decrypt_key(const unsigned char *userKey, const int bits, |
| 91 | AES_KEY *key); |
| 92 | |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 93 | void AES_encrypt(const unsigned char *in, unsigned char *out, |
| 94 | const AES_KEY *key); |
| 95 | void AES_decrypt(const unsigned char *in, unsigned char *out, |
| 96 | const AES_KEY *key); |
| 97 | |
| 98 | void AES_ecb_encrypt(const unsigned char *in, unsigned char *out, |
| 99 | const AES_KEY *key, const int enc); |
| 100 | void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, |
| 101 | size_t length, const AES_KEY *key, |
| 102 | unsigned char *ivec, const int enc); |
| 103 | void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, |
| 104 | size_t length, const AES_KEY *key, |
| 105 | unsigned char *ivec, int *num, const int enc); |
| 106 | void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, |
| 107 | size_t length, const AES_KEY *key, |
| 108 | unsigned char *ivec, int *num, const int enc); |
| 109 | void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, |
| 110 | size_t length, const AES_KEY *key, |
| 111 | unsigned char *ivec, int *num, const int enc); |
| 112 | void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, |
| 113 | size_t length, const AES_KEY *key, |
| 114 | unsigned char *ivec, int *num); |
| 115 | void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out, |
| 116 | size_t length, const AES_KEY *key, |
| 117 | unsigned char ivec[AES_BLOCK_SIZE], |
| 118 | unsigned char ecount_buf[AES_BLOCK_SIZE], |
| 119 | unsigned int *num); |
| 120 | /* NB: the IV is _two_ blocks long */ |
| 121 | void AES_ige_encrypt(const unsigned char *in, unsigned char *out, |
| 122 | size_t length, const AES_KEY *key, |
| 123 | unsigned char *ivec, const int enc); |
| 124 | /* NB: the IV is _four_ blocks long */ |
| 125 | void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out, |
| 126 | size_t length, const AES_KEY *key, |
| 127 | const AES_KEY *key2, const unsigned char *ivec, |
| 128 | const int enc); |
| 129 | |
| 130 | int AES_wrap_key(AES_KEY *key, const unsigned char *iv, |
| 131 | unsigned char *out, |
| 132 | const unsigned char *in, unsigned int inlen); |
| 133 | int AES_unwrap_key(AES_KEY *key, const unsigned char *iv, |
| 134 | unsigned char *out, |
| 135 | const unsigned char *in, unsigned int inlen); |
| 136 | |
| 137 | |
| 138 | #ifdef __cplusplus |
| 139 | } |
| 140 | #endif |
| 141 | |
| 142 | #endif /* !HEADER_AES_H */ |