mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
111 lines
3.5 KiB
C
111 lines
3.5 KiB
C
/* $OpenBSD: sha2.c,v 1.28 2019/07/23 12:35:22 dtucker Exp $ */
|
|
|
|
/*
|
|
* FILE: sha2.c
|
|
* AUTHOR: Aaron D. Gifford <me@aarongifford.com>
|
|
*
|
|
* Copyright (c) 2000-2001, Aaron D. Gifford
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the copyright holder nor the names of contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $From: sha2.c,v 1.1 2001/11/08 00:01:51 adg Exp adg $
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <endian.h>
|
|
#include <sha2.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include "sha2.h"
|
|
|
|
#define BE_64_TO_8(cp, src) do { \
|
|
(cp)[0] = (src) >> 56; \
|
|
(cp)[1] = (src) >> 48; \
|
|
(cp)[2] = (src) >> 40; \
|
|
(cp)[3] = (src) >> 32; \
|
|
(cp)[4] = (src) >> 24; \
|
|
(cp)[5] = (src) >> 16; \
|
|
(cp)[6] = (src) >> 8; \
|
|
(cp)[7] = (src); \
|
|
} while (0)
|
|
|
|
/*** SHA-XYZ INITIAL HASH VALUES AND CONSTANTS ************************/
|
|
/* Initial hash value H for SHA-384 */
|
|
static const uint64_t sha384_initial_hash_value[8] = {
|
|
0xcbbb9d5dc1059ed8ULL,
|
|
0x629a292a367cd507ULL,
|
|
0x9159015a3070dd17ULL,
|
|
0x152fecd8f70e5939ULL,
|
|
0x67332667ffc00b31ULL,
|
|
0x8eb44a8768581511ULL,
|
|
0xdb0c2e0d64f98fa7ULL,
|
|
0x47b5481dbefa4fa4ULL
|
|
};
|
|
|
|
/*** SHA-384: *********************************************************/
|
|
void
|
|
SHA384Init(SHA2_CTX *context)
|
|
{
|
|
memcpy(context->state.st64, sha384_initial_hash_value,
|
|
sizeof(sha384_initial_hash_value));
|
|
memset(context->buffer, 0, sizeof(context->buffer));
|
|
context->bitcount[0] = context->bitcount[1] = 0;
|
|
}
|
|
|
|
void SHA384Transform(uint64_t state[8], const uint8_t data[SHA384_BLOCK_LENGTH])
|
|
{
|
|
SHA512Transform(state, data);
|
|
}
|
|
|
|
void SHA384Update(SHA2_CTX *context, const uint8_t *data, size_t len)
|
|
{
|
|
SHA512Update(context, data, len);
|
|
}
|
|
|
|
void SHA384Pad(SHA2_CTX *context)
|
|
{
|
|
SHA512Pad(context);
|
|
}
|
|
|
|
void
|
|
SHA384Final(uint8_t digest[SHA384_DIGEST_LENGTH], SHA2_CTX *context)
|
|
{
|
|
SHA384Pad(context);
|
|
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
int i;
|
|
|
|
/* Convert TO host byte order */
|
|
for (i = 0; i < 6; i++)
|
|
BE_64_TO_8(digest + i * 8, context->state.st64[i]);
|
|
#else
|
|
memcpy(digest, context->state.st64, SHA384_DIGEST_LENGTH);
|
|
#endif
|
|
/* Zero out state data */
|
|
explicit_bzero(context, sizeof(*context));
|
|
}
|