1 /*

2 * $Id: sha1.h,v 1.10 2004/03/05 17:47:29 hipnod Exp $

3 *

4 * Copyright (C) 2001-2004 giFT project (gift.sourceforge.net)

5 *

6 * This program is free software; you can redistribute it and/or modify it

7 * under the terms of the GNU General Public License as published by the

8 * Free Software Foundation; either version 2, or (at your option) any

9 * later version.

10 *

11 * This program is distributed in the hope that it will be useful, but

12 * WITHOUT ANY WARRANTY; without even the implied warranty of

13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

14 * General Public License for more details.

15 */

16

17 #ifndef GIFT_GT_SHA1_H_

18 #define GIFT_GT_SHA1_H_

19

20 /*****************************************************************************/

21

22 #define SHA_BLOCKSIZE 64

23 #define SHA_DIGESTSIZE 20

24

25 #define SHA1_BINSIZE 20

26 #define SHA1_STRLEN 32

27

28 /*****************************************************************************/

29

30 struct sha1_state

31 {

32 unsigned long digest[5]; /* message digest */

33 unsigned long count_lo, count_hi; /* 64-bit bit count */

34 uint8_t data[SHA_BLOCKSIZE]; /* SHA data buffer */

35 int local; /* unprocessed amount in data */

36 };

37

38 typedef struct sha1_state sha1_state_t;

39

40 /*****************************************************************************/

41

42 /* TODO: prefix these suckers */

43 char *sha1_string (const unsigned char *sha1);

44 unsigned char *sha1_digest (const char *file, off_t size);

45 unsigned char *sha1_bin (const char *ascii);

46 unsigned char *sha1_dup (const unsigned char *sha1);

47

48 /*****************************************************************************/

49

50 void gt_sha1_init (sha1_state_t *state);

51 void gt_sha1_append (sha1_state_t *state, const void *data,

52 size_t len);

53 void gt_sha1_finish (sha1_state_t *state, unsigned char *hash);

54

55 /*****************************************************************************/

56

57 #endif /* GIFT_GT_SHA1_H_ */