92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/* sha1.h
|
|
|
|
The sha1 hash function.
|
|
|
|
Copyright (C) 2001, 2012 Niels Möller
|
|
|
|
This file is part of GNU Nettle.
|
|
|
|
GNU Nettle is free software: you can redistribute it and/or
|
|
modify it under the terms of either:
|
|
|
|
* the GNU Lesser General Public License as published by the Free
|
|
Software Foundation; either version 3 of the License, or (at your
|
|
option) any later version.
|
|
|
|
or
|
|
|
|
* the GNU General Public License as published by the Free
|
|
Software Foundation; either version 2 of the License, or (at your
|
|
option) any later version.
|
|
|
|
or both in parallel, as here.
|
|
|
|
GNU Nettle 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
|
|
General Public License for more details.
|
|
|
|
You should have received copies of the GNU General Public License and
|
|
the GNU Lesser General Public License along with this program. If
|
|
not, see http://www.gnu.org/licenses/.
|
|
*/
|
|
|
|
#ifndef NETTLE_SHA1_H_INCLUDED
|
|
#define NETTLE_SHA1_H_INCLUDED
|
|
|
|
#include "nettle-types.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Name mangling */
|
|
#define sha1_init nettle_sha1_init
|
|
#define sha1_update nettle_sha1_update
|
|
#define sha1_digest nettle_sha1_digest
|
|
#define sha1_compress nettle_sha1_compress
|
|
|
|
/* SHA1 */
|
|
|
|
#define SHA1_DIGEST_SIZE 20
|
|
#define SHA1_BLOCK_SIZE 64
|
|
/* For backwards compatibility */
|
|
#define SHA1_DATA_SIZE SHA1_BLOCK_SIZE
|
|
|
|
/* Digest is kept internally as 5 32-bit words. */
|
|
#define _SHA1_DIGEST_LENGTH 5
|
|
|
|
struct sha1_ctx
|
|
{
|
|
uint32_t state[_SHA1_DIGEST_LENGTH]; /* State variables */
|
|
uint64_t count; /* 64-bit block count */
|
|
unsigned int index; /* index into buffer */
|
|
uint8_t block[SHA1_BLOCK_SIZE]; /* SHA1 data buffer */
|
|
};
|
|
|
|
void
|
|
sha1_init(struct sha1_ctx *ctx);
|
|
|
|
void
|
|
sha1_update(struct sha1_ctx *ctx,
|
|
size_t length,
|
|
const uint8_t *data);
|
|
|
|
void
|
|
sha1_digest(struct sha1_ctx *ctx,
|
|
size_t length,
|
|
uint8_t *digest);
|
|
|
|
/* SHA1 compression function. STATE points to 5 uint32_t words,
|
|
and DATA points to 64 bytes of input data, possibly unaligned. */
|
|
void
|
|
sha1_compress(uint32_t *state, const uint8_t *data);
|
|
|
|
/* Old name, for backwards compatibility. */
|
|
#define _nettle_sha1_compress nettle_sha1_compress
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* NETTLE_SHA1_H_INCLUDED */
|