1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* sha1.c - SHA1 hash function
* Copyright (C) 1998, 2001, 2002, 2003, 2008 Free Software Foundation, Inc.
*
* This file was part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/* Borrowed and adapted slightly for use in JTE by Steve McIntyre
* <steve@einval.com> October 2010 */
/* Structure to save state of computation between the single steps. */
typedef struct
{
uint32_t h0,h1,h2,h3,h4;
uint32_t nblocks;
unsigned char buf[64];
int count;
} SHA1_CONTEXT;
/* Initialize structure containing state of computation. */
void sha1_init_ctx (void *context);
/* Starting with the result of former calls of this function (or the
initialization function update the context for the next inlen bytes
starting at inbuf_arg.
It is NOT required that inlen is a multiple of 64. */
void sha1_write (void *context, const void *inbuf_arg, size_t inlen);
/* Process the remaining bytes in the buffer and finish the checksum
calculation. */
void sha1_finish_ctx(void *context);
/* Read the checksum result - 20 bytes. The result is always in little
endian byte order, so that a byte-wise output yields to the wanted
ASCII representation of the message digest. */
unsigned char *sha1_read(void *context);
|
