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sha2.h (2822B)
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1 /*
2 * FILE: sha2.h
3 * AUTHOR: Aaron D. Gifford <me@aarongifford.com>
4 *
5 * Copyright (c) 2000-2001, Aaron D. Gifford
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the copyright holder nor the names of contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #ifndef AR_SHA2_H
34 #define AR_SHA2_H
35
36 #include <sys/types.h>
37 #include <inttypes.h>
38
39
40 /*** SHA-256/384/512 Various Length Definitions ***********************/
41 #define SHA384_BLOCK_LENGTH 128
42 #define SHA384_DIGEST_LENGTH 48
43 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
44 #define SHA512_BLOCK_LENGTH 128
45 #define SHA512_DIGEST_LENGTH 64
46 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
47
48
49 /*** SHA-384/512 Context Structures *******************************/
50
51 typedef struct _SHA512_CTX {
52 uint64_t state[8];
53 uint64_t bitcount[2];
54 uint8_t buffer[SHA512_BLOCK_LENGTH];
55 } SHA512_CTX;
56
57 typedef SHA512_CTX SHA384_CTX;
58
59
60 /*** SHA-384/512 Function Prototypes ******************************/
61
62 void SHA384_Init(SHA384_CTX*);
63 void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
64 void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
65 void SHA384(const uint8_t*, size_t, char[SHA384_DIGEST_LENGTH]);
66
67 void SHA512_Init(SHA512_CTX*);
68 void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
69 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
70 void SHA512(const uint8_t*, size_t, char[SHA512_DIGEST_LENGTH]);
71
72 #endif /* AR_SHA2_H */