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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/e_os2.h>
56
57#ifdef OPENSSL_NO_AES
58#error AES is disabled.
59#endif
60
61#define AES_ENCRYPT 1
62#define AES_DECRYPT 0
63
64/* Because array size can't be a const in C, the following two are macros.
65 Both sizes are in bytes. */
66#define AES_MAXNR 14
67#define AES_BLOCK_SIZE 16
68
69#if defined(OPENSSL_FIPS)
70#define FIPS_AES_SIZE_T int
71#endif
72
73#ifdef __cplusplus
74extern "C" {
75#endif
76
77/* This should be a hidden type, but EVP requires that the size be known */
78struct aes_key_st {
79 unsigned long rd_key[4 *(AES_MAXNR + 1)];
80 int rounds;
81};
82typedef struct aes_key_st AES_KEY;
83
84const char *AES_options(void);
85
86int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
87 AES_KEY *key);
88int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
89 AES_KEY *key);
90
91void AES_encrypt(const unsigned char *in, unsigned char *out,
92 const AES_KEY *key);
93void AES_decrypt(const unsigned char *in, unsigned char *out,
94 const AES_KEY *key);
95
96void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
97 const AES_KEY *key, const int enc);
98void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
99 const unsigned long length, const AES_KEY *key,
100 unsigned char *ivec, const int enc);
101void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
102 const unsigned long length, const AES_KEY *key,
103 unsigned char *ivec, int *num, const int enc);
104void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
105 const unsigned long length, const AES_KEY *key,
106 unsigned char *ivec, int *num, const int enc);
107void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
108 const unsigned long length, const AES_KEY *key,
109 unsigned char *ivec, int *num, const int enc);
110void AES_cfbr_encrypt_block(const unsigned char *in,unsigned char *out,
111 const int nbits,const AES_KEY *key,
112 unsigned char *ivec,const int enc);
113void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
114 const unsigned long length, const AES_KEY *key,
115 unsigned char *ivec, int *num);
116void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
117 const unsigned long length, const AES_KEY *key,
118 unsigned char ivec[AES_BLOCK_SIZE],
119 unsigned char ecount_buf[AES_BLOCK_SIZE],
120 unsigned int *num);
121
122
123#ifdef __cplusplus
124}
125#endif
126
127#endif /* !HEADER_AES_H */
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