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031e5cce SM |
1 | /* crypto/aes/aes.h */ |
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 | * ==================================================================== | |
3e575651 SL |
49 | * |
50 | */ | |
51 | ||
52 | #ifndef HEADER_AES_H | |
d3819813 | 53 | # define HEADER_AES_H |
3e575651 | 54 | |
d3819813 | 55 | # include <openssl/opensslconf.h> |
3e575651 | 56 | |
031e5cce SM |
57 | # ifdef OPENSSL_NO_AES |
58 | # error AES is disabled. | |
7bf7a6d0 | 59 | # endif |
b6f94dbe | 60 | |
031e5cce SM |
61 | # include <stddef.h> |
62 | ||
d3819813 MTL |
63 | # define AES_ENCRYPT 1 |
64 | # define AES_DECRYPT 0 | |
3e575651 | 65 | |
d3819813 MTL |
66 | /* |
67 | * Because array size can't be a const in C, the following two are macros. | |
68 | * Both sizes are in bytes. | |
69 | */ | |
70 | # define AES_MAXNR 14 | |
71 | # define AES_BLOCK_SIZE 16 | |
3e575651 | 72 | |
031e5cce SM |
73 | #ifdef __cplusplus |
74 | extern "C" { | |
75 | #endif | |
76 | ||
3e575651 SL |
77 | /* This should be a hidden type, but EVP requires that the size be known */ |
78 | struct aes_key_st { | |
d3819813 MTL |
79 | # ifdef AES_LONG |
80 | unsigned long rd_key[4 * (AES_MAXNR + 1)]; | |
81 | # else | |
82 | unsigned int rd_key[4 * (AES_MAXNR + 1)]; | |
83 | # endif | |
3e575651 SL |
84 | int rounds; |
85 | }; | |
86 | typedef struct aes_key_st AES_KEY; | |
87 | ||
88 | const char *AES_options(void); | |
89 | ||
90 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits, | |
d3819813 | 91 | AES_KEY *key); |
3e575651 | 92 | int AES_set_decrypt_key(const unsigned char *userKey, const int bits, |
d3819813 MTL |
93 | AES_KEY *key); |
94 | ||
031e5cce SM |
95 | int private_AES_set_encrypt_key(const unsigned char *userKey, const int bits, |
96 | AES_KEY *key); | |
97 | int private_AES_set_decrypt_key(const unsigned char *userKey, const int bits, | |
98 | AES_KEY *key); | |
99 | ||
3e575651 | 100 | void AES_encrypt(const unsigned char *in, unsigned char *out, |
d3819813 | 101 | const AES_KEY *key); |
3e575651 | 102 | void AES_decrypt(const unsigned char *in, unsigned char *out, |
d3819813 | 103 | const AES_KEY *key); |
3e575651 SL |
104 | |
105 | void AES_ecb_encrypt(const unsigned char *in, unsigned char *out, | |
d3819813 | 106 | const AES_KEY *key, const int enc); |
3e575651 | 107 | void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, |
d3819813 MTL |
108 | size_t length, const AES_KEY *key, |
109 | unsigned char *ivec, const int enc); | |
3e575651 | 110 | void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, |
d3819813 MTL |
111 | size_t length, const AES_KEY *key, |
112 | unsigned char *ivec, int *num, const int enc); | |
3e575651 | 113 | void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, |
d3819813 MTL |
114 | size_t length, const AES_KEY *key, |
115 | unsigned char *ivec, int *num, const int enc); | |
3e575651 | 116 | void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, |
d3819813 MTL |
117 | size_t length, const AES_KEY *key, |
118 | unsigned char *ivec, int *num, const int enc); | |
3e575651 | 119 | void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, |
d3819813 MTL |
120 | size_t length, const AES_KEY *key, |
121 | unsigned char *ivec, int *num); | |
031e5cce SM |
122 | void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out, |
123 | size_t length, const AES_KEY *key, | |
124 | unsigned char ivec[AES_BLOCK_SIZE], | |
125 | unsigned char ecount_buf[AES_BLOCK_SIZE], | |
126 | unsigned int *num); | |
3e575651 SL |
127 | /* NB: the IV is _two_ blocks long */ |
128 | void AES_ige_encrypt(const unsigned char *in, unsigned char *out, | |
d3819813 MTL |
129 | size_t length, const AES_KEY *key, |
130 | unsigned char *ivec, const int enc); | |
3e575651 SL |
131 | /* NB: the IV is _four_ blocks long */ |
132 | void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out, | |
d3819813 MTL |
133 | size_t length, const AES_KEY *key, |
134 | const AES_KEY *key2, const unsigned char *ivec, | |
135 | const int enc); | |
3e575651 SL |
136 | |
137 | int AES_wrap_key(AES_KEY *key, const unsigned char *iv, | |
d3819813 MTL |
138 | unsigned char *out, |
139 | const unsigned char *in, unsigned int inlen); | |
3e575651 | 140 | int AES_unwrap_key(AES_KEY *key, const unsigned char *iv, |
d3819813 MTL |
141 | unsigned char *out, |
142 | const unsigned char *in, unsigned int inlen); | |
143 | ||
3e575651 | 144 | |
031e5cce | 145 | #ifdef __cplusplus |
3e575651 | 146 | } |
7bf7a6d0 | 147 | #endif |
031e5cce SM |
148 | |
149 | #endif /* !HEADER_AES_H */ |