1 /*	contrib/pgcrypto/sha1.h */
2 /*	   $KAME: sha1.h,v 1.4 2000/02/22 14:01:18 itojun Exp $    */
3 
4 /*
5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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 project nor the names of its contributors
17  *	  may be used to endorse or promote products derived from this software
18  *	  without specific prior written permission.
19  *
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.	IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 /*
31  * FIPS pub 180-1: Secure Hash Algorithm (SHA-1)
32  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
33  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
34  * based on: http://www.itl.nist.gov/fipspubs/fip180-1.htm
35  * implemented by Jun-ichiro itojun Itoh <itojun@itojun.org>
36  */
37 
38 #ifndef _NETINET6_SHA1_H_
39 #define _NETINET6_SHA1_H_
40 
41 #ifdef __cplusplus
42 extern "C" {
43 #endif
44 
45 #include <stdlib.h>
46 #include "../../src/stdint.hpp"
47 
48 struct sha1_ctxt
49 {
50 	union
51 	{
52 		uint8_t	b8[20];
53 		uint32_t b32[5];
54 	} h;
55 	union
56 	{
57 		uint8_t b8[8];
58 		uint64_t b64[1];
59 	} c;
60 	union
61 	{
62 		uint8_t b8[64];
63 		uint32_t b32[16];
64 	} m;
65 	uint8_t count;
66 };
67 
68 void sha1_init(struct sha1_ctxt *);
69 void sha1_pad(struct sha1_ctxt *);
70 void sha1_loop(struct sha1_ctxt *, const uint8_t *, size_t);
71 void sha1_result(struct sha1_ctxt *, uint8_t *);
72 
73 //  Compatibility with OpenSSL API
74 #define SHA_DIGEST_LENGTH 20
75 typedef struct sha1_ctxt SHA_CTX;
76 
77 #define SHA1_Init(x)            sha1_init((x))
78 #define SHA1_Update(x, y, z)    sha1_loop((x), (y), (z))
79 #define SHA1_Final(x, y)        sha1_result((y), (x))
80 
81 #define SHA1_RESULTLEN	(160/8)
82 
83 #ifdef __cplusplus
84 }
85 #endif
86 
87 #endif   /* _NETINET6_SHA1_H_ */
88