Files
OpenCellular/include/sha1.h
Bill Richardson 104f811e67 cleanup: fix all the header guards
This unifies all the EC header files to use __CROS_EC_FILENAME_H
as the include guard. Well, except for test/ util/ and extra/
which use __TEST_ __UTIL_ and __EXTRA_ prefixes respectively.

BUG=chromium:496895
BRANCH=none
TEST=make buildall -j

Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: Iea71b3a08bdec94a11239de810a2b2e152b15029
Reviewed-on: https://chromium-review.googlesource.com/278121
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2015-06-18 19:07:00 +00:00

37 lines
833 B
C

/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* SHA-1 functions */
#ifndef __CROS_EC_SHA1_H
#define __CROS_EC_SHA1_H
#include "common.h"
#ifdef HOST_TOOLS_BUILD
#include <string.h>
#define DIV_ROUND_UP(x, y) (((x) + ((y) - 1)) / (y))
#else
#include "util.h"
#endif
#define SHA1_DIGEST_SIZE 20
#define SHA1_BLOCK_SIZE 64
/* SHA-1 context */
struct sha1_ctx {
uint32_t count;
uint32_t state[5];
union {
uint8_t b[SHA1_BLOCK_SIZE];
uint32_t w[DIV_ROUND_UP(SHA1_BLOCK_SIZE, sizeof(uint32_t))];
} buf;
};
void sha1_init(struct sha1_ctx *ctx);
void sha1_update(struct sha1_ctx *ctx, const uint8_t *data, uint32_t len);
uint8_t *sha1_final(struct sha1_ctx *ctx);
#endif /* __CROS_EC_SHA1_H */