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1 | /* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */ |
2 | /* ==================================================================== | |
97879bcd | 3 | * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. |
6f9079fd RL |
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 | |
40720ce3 | 10 | * notice, this list of conditions and the following disclaimer. |
6f9079fd RL |
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 | |
40720ce3 | 53 | # define HEADER_AES_H |
6f9079fd | 54 | |
40720ce3 | 55 | # include <openssl/opensslconf.h> |
940767b0 | 56 | |
40720ce3 MC |
57 | # ifdef OPENSSL_NO_AES |
58 | # error AES is disabled. | |
59 | # endif | |
6f9079fd | 60 | |
40720ce3 MC |
61 | # define AES_ENCRYPT 1 |
62 | # define AES_DECRYPT 0 | |
aa18245f | 63 | |
40720ce3 MC |
64 | /* |
65 | * Because array size can't be a const in C, the following two are macros. | |
66 | * Both sizes are in bytes. | |
67 | */ | |
68 | # define AES_MAXNR 14 | |
69 | # define AES_BLOCK_SIZE 16 | |
6f9079fd | 70 | |
40720ce3 MC |
71 | # ifdef OPENSSL_FIPS |
72 | # define FIPS_AES_SIZE_T int | |
73 | # endif | |
96a259e8 | 74 | |
6f9079fd RL |
75 | #ifdef __cplusplus |
76 | extern "C" { | |
77 | #endif | |
78 | ||
79 | /* This should be a hidden type, but EVP requires that the size be known */ | |
80 | struct aes_key_st { | |
40720ce3 MC |
81 | # ifdef AES_LONG |
82 | unsigned long rd_key[4 * (AES_MAXNR + 1)]; | |
83 | # else | |
84 | unsigned int rd_key[4 * (AES_MAXNR + 1)]; | |
85 | # endif | |
6f9079fd RL |
86 | int rounds; |
87 | }; | |
88 | typedef struct aes_key_st AES_KEY; | |
89 | ||
90 | const char *AES_options(void); | |
91 | ||
97879bcd | 92 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits, |
40720ce3 | 93 | AES_KEY *key); |
97879bcd | 94 | int AES_set_decrypt_key(const unsigned char *userKey, const int bits, |
40720ce3 | 95 | AES_KEY *key); |
6f9079fd | 96 | |
97879bcd | 97 | void AES_encrypt(const unsigned char *in, unsigned char *out, |
40720ce3 | 98 | const AES_KEY *key); |
97879bcd | 99 | void AES_decrypt(const unsigned char *in, unsigned char *out, |
40720ce3 | 100 | const AES_KEY *key); |
6f9079fd RL |
101 | |
102 | void AES_ecb_encrypt(const unsigned char *in, unsigned char *out, | |
40720ce3 | 103 | const AES_KEY *key, const int enc); |
6f9079fd | 104 | void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, |
40720ce3 MC |
105 | const unsigned long length, const AES_KEY *key, |
106 | unsigned char *ivec, const int enc); | |
97879bcd | 107 | void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, |
40720ce3 MC |
108 | const unsigned long length, const AES_KEY *key, |
109 | unsigned char *ivec, int *num, const int enc); | |
8d1ebe0b | 110 | void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, |
40720ce3 MC |
111 | const unsigned long length, const AES_KEY *key, |
112 | unsigned char *ivec, int *num, const int enc); | |
8d1ebe0b | 113 | void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, |
40720ce3 MC |
114 | const unsigned long length, const AES_KEY *key, |
115 | unsigned char *ivec, int *num, const int enc); | |
116 | void AES_cfbr_encrypt_block(const unsigned char *in, unsigned char *out, | |
117 | const int nbits, const AES_KEY *key, | |
118 | unsigned char *ivec, const int enc); | |
97879bcd | 119 | void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, |
40720ce3 MC |
120 | const unsigned long length, const AES_KEY *key, |
121 | unsigned char *ivec, int *num); | |
97879bcd | 122 | void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out, |
40720ce3 MC |
123 | const unsigned long length, const AES_KEY *key, |
124 | unsigned char ivec[AES_BLOCK_SIZE], | |
125 | unsigned char ecount_buf[AES_BLOCK_SIZE], | |
126 | unsigned int *num); | |
97879bcd | 127 | |
4b9dcd82 BL |
128 | /* For IGE, see also http://www.links.org/files/openssl-ige.pdf */ |
129 | /* NB: the IV is _two_ blocks long */ | |
130 | void AES_ige_encrypt(const unsigned char *in, unsigned char *out, | |
40720ce3 MC |
131 | const unsigned long length, const AES_KEY *key, |
132 | unsigned char *ivec, const int enc); | |
4b9dcd82 BL |
133 | /* NB: the IV is _four_ blocks long */ |
134 | void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out, | |
40720ce3 MC |
135 | const unsigned long length, const AES_KEY *key, |
136 | const AES_KEY *key2, const unsigned char *ivec, | |
137 | const int enc); | |
4b9dcd82 | 138 | |
28a2759a | 139 | int AES_wrap_key(AES_KEY *key, const unsigned char *iv, |
40720ce3 MC |
140 | unsigned char *out, |
141 | const unsigned char *in, unsigned int inlen); | |
28a2759a | 142 | int AES_unwrap_key(AES_KEY *key, const unsigned char *iv, |
40720ce3 MC |
143 | unsigned char *out, |
144 | const unsigned char *in, unsigned int inlen); | |
6f9079fd RL |
145 | |
146 | #ifdef __cplusplus | |
147 | } | |
148 | #endif | |
149 | ||
40720ce3 | 150 | #endif /* !HEADER_AES_H */ |