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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 | |
93 int private_AES_set_encrypt_key(const unsigned char *userKey, const int bits, | |
94 AES_KEY *key); | |
95 int private_AES_set_decrypt_key(const unsigned char *userKey, const int bits, | |
96 AES_KEY *key); | |
97 | |
98 void AES_encrypt(const unsigned char *in, unsigned char *out, | |
99 const AES_KEY *key); | |
100 void AES_decrypt(const unsigned char *in, unsigned char *out, | |
101 const AES_KEY *key); | |
102 | |
103 void AES_ecb_encrypt(const unsigned char *in, unsigned char *out, | |
104 const AES_KEY *key, const int enc); | |
105 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, | |
106 size_t length, const AES_KEY *key, | |
107 unsigned char *ivec, const int enc); | |
108 void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out, | |
109 size_t length, const AES_KEY *key, | |
110 unsigned char *ivec, int *num, const int enc); | |
111 void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, | |
112 size_t length, const AES_KEY *key, | |
113 unsigned char *ivec, int *num, const int enc); | |
114 void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, | |
115 size_t length, const AES_KEY *key, | |
116 unsigned char *ivec, int *num, const int enc); | |
117 void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out, | |
118 size_t length, const AES_KEY *key, | |
119 unsigned char *ivec, int *num); | |
120 void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out, | |
121 size_t length, const AES_KEY *key, | |
122 unsigned char ivec[AES_BLOCK_SIZE], | |
123 unsigned char ecount_buf[AES_BLOCK_SIZE], | |
124 unsigned int *num); | |
125 /* NB: the IV is _two_ blocks long */ | |
126 void AES_ige_encrypt(const unsigned char *in, unsigned char *out, | |
127 size_t length, const AES_KEY *key, | |
128 unsigned char *ivec, const int enc); | |
129 /* NB: the IV is _four_ blocks long */ | |
130 void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out, | |
131 size_t length, const AES_KEY *key, | |
132 const AES_KEY *key2, const unsigned char *ivec, | |
133 const int enc); | |
134 | |
135 int AES_wrap_key(AES_KEY *key, const unsigned char *iv, | |
136 unsigned char *out, | |
137 const unsigned char *in, unsigned int inlen); | |
138 int AES_unwrap_key(AES_KEY *key, const unsigned char *iv, | |
139 unsigned char *out, | |
140 const unsigned char *in, unsigned int inlen); | |
141 | |
142 | |
143 #ifdef __cplusplus | |
144 } | |
145 #endif | |
146 | |
147 #endif /* !HEADER_AES_H */ | |
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