1 /*-
2  * Copyright (c) 2001-2003 Allan Saddi <allan@saddi.com>
3  * 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  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY ALLAN SADDI AND HIS CONTRIBUTORS ``AS IS''
15  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL ALLAN SADDI OR HIS CONTRIBUTORS BE
18  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24  * POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $Id: sha512.h 350 2003-02-23 22:12:33Z asaddi $
27  */
28 
29 #ifndef _SHA512_H
30 #define _SHA512_H
31 
32 #if HAVE_INTTYPES_H
33 # include <inttypes.h>
34 #else
35 # if HAVE_STDINT_H
36 #  include <stdint.h>
37 # endif
38 #endif
39 
40 #define SHA512_HASH_SIZE 64
41 
42 /* Hash size in 64-bit words */
43 #define SHA512_HASH_WORDS 8
44 
45 struct _SHA512Context {
46   uint64_t totalLength[2];
47   uint64_t hash[SHA512_HASH_WORDS];
48   uint32_t bufferLength;
49   union {
50     uint64_t words[16];
51     uint8_t bytes[128];
52   } buffer;
53 #ifdef RUNTIME_ENDIAN
54   int littleEndian;
55 #endif /* RUNTIME_ENDIAN */
56 };
57 
58 typedef struct _SHA512Context SHA512Context;
59 
60 #ifdef __cplusplus
61 extern "C" {
62 #endif
63 
64 void SHA512Init (SHA512Context *sc);
65 void SHA512Update (SHA512Context *sc, const void *data, uint32_t len);
66 void SHA512Final (SHA512Context *sc, uint8_t hash[SHA512_HASH_SIZE]);
67 
68 #ifdef __cplusplus
69 }
70 #endif
71 
72 #endif /* !_SHA512_H */
73