sha1.h revision 1.21 
1/*	$OpenBSD: sha1.h,v 1.21 2004/05/03 18:05:08 millert Exp $	*/
2
3/*
4 * SHA-1 in C
5 * By Steve Reid <steve@edmweb.com>
6 * 100% Public Domain
7 */
8
9#ifndef _SHA1_H
10#define _SHA1_H
11
12#define	SHA1_BLOCK_LENGTH		64
13#define	SHA1_DIGEST_LENGTH		20
14#define	SHA1_DIGEST_STRING_LENGTH	(SHA1_DIGEST_LENGTH * 2 + 1)
15
16typedef struct {
17    u_int32_t state[5];
18    u_int64_t count;
19    u_int8_t buffer[SHA1_BLOCK_LENGTH];
20} SHA1_CTX;
21
22#include <sys/cdefs.h>
23
24__BEGIN_DECLS
25void SHA1Init(SHA1_CTX *);
26void SHA1Pad(SHA1_CTX *);
27void SHA1Transform(u_int32_t [5], u_int8_t [SHA1_BLOCK_LENGTH])
28	__attribute__((__bounded__(__minbytes__,1,5)))
29	__attribute__((__bounded__(__minbytes__,2,SHA1_BLOCK_LENGTH)));
30void SHA1Update(SHA1_CTX *, const u_int8_t *, size_t)
31	__attribute__((__bounded__(__string__,2,3)));
32void SHA1Final(u_int8_t [SHA1_DIGEST_LENGTH], SHA1_CTX *)
33	__attribute__((__bounded__(__minbytes__,1,SHA1_DIGEST_LENGTH)));
34char *SHA1End(SHA1_CTX *, char *)
35	__attribute__((__bounded__(__minbytes__,2,SHA1_DIGEST_STRING_LENGTH)));
36char *SHA1File(char *, char *)
37	__attribute__((__bounded__(__minbytes__,2,SHA1_DIGEST_STRING_LENGTH)));
38char *SHA1FileChunk(char *, char *, off_t, off_t)
39	__attribute__((__bounded__(__minbytes__,2,SHA1_DIGEST_STRING_LENGTH)));
40char *SHA1Data(const u_int8_t *, size_t, char *)
41	__attribute__((__bounded__(__string__,1,2)))
42	__attribute__((__bounded__(__minbytes__,3,SHA1_DIGEST_STRING_LENGTH)));
43__END_DECLS
44
45#define HTONDIGEST(x) do {                                              \
46        x[0] = htonl(x[0]);                                             \
47        x[1] = htonl(x[1]);                                             \
48        x[2] = htonl(x[2]);                                             \
49        x[3] = htonl(x[3]);                                             \
50        x[4] = htonl(x[4]); } while (0)
51
52#define NTOHDIGEST(x) do {                                              \
53        x[0] = ntohl(x[0]);                                             \
54        x[1] = ntohl(x[1]);                                             \
55        x[2] = ntohl(x[2]);                                             \
56        x[3] = ntohl(x[3]);                                             \
57        x[4] = ntohl(x[4]); } while (0)
58
59#endif /* _SHA1_H */
60