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https://github.com/Telecominfraproject/OpenCellular.git
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00cf957832
Imported code from VBoot firmware cryptolib and slightly reformat it for the EC code base. We already have SHA-256, but for updates over PD, the maximum payload size is 192 bits, so SHA-1 seems a better trade-off. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=none BUG=chrome-os-partner:28336 TEST=none Change-Id: I6da7b71a9af03c6689accfa3c59cfcf7776fcfc6 Reviewed-on: https://chromium-review.googlesource.com/199553 Reviewed-by: Alec Berg <alecaberg@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
32 lines
696 B
C
32 lines
696 B
C
/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* SHA-1 functions */
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#ifndef _SHA1_H
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#define _SHA1_H
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#include "common.h"
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#include "util.h"
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#define SHA1_DIGEST_SIZE 20
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#define SHA1_BLOCK_SIZE 64
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/* SHA-1 context */
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struct sha1_ctx {
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uint32_t count;
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uint32_t state[5];
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union {
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uint8_t b[SHA1_BLOCK_SIZE];
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uint32_t w[DIV_ROUND_UP(SHA1_BLOCK_SIZE, sizeof(uint32_t))];
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} buf;
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};
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void sha1_init(struct sha1_ctx *ctx);
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void sha1_update(struct sha1_ctx *ctx, const uint8_t *data, uint32_t len);
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uint8_t *sha1_final(struct sha1_ctx *ctx);
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#endif /* _SHA1_H */
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