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69 lines
2.7 KiB
69 lines
2.7 KiB
/* |
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* FIPS 180-2 SHA-224/256/384/512 implementation |
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* Last update: 02/02/2007 |
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* Issue date: 04/30/2005 |
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* |
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* Copyright (C) 2013-2014, Con Kolivas <kernel@kolivas.org> |
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* Copyright (C) 2005, 2007 Olivier Gay <olivier.gay@a3.epfl.ch> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the project nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include "config.h" |
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#ifndef SHA2_H |
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#define SHA2_H |
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#define SHA256_DIGEST_SIZE ( 256 / 8) |
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#define SHA256_BLOCK_SIZE ( 512 / 8) |
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#define SHFR(x, n) (x >> n) |
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#define ROTR(x, n) ((x >> n) | (x << ((sizeof(x) << 3) - n))) |
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#define CH(x, y, z) ((x & y) ^ (~x & z)) |
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#define MAJ(x, y, z) ((x & y) ^ (x & z) ^ (y & z)) |
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#define SHA256_F1(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22)) |
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#define SHA256_F2(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25)) |
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#define SHA256_F3(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHFR(x, 3)) |
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#define SHA256_F4(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHFR(x, 10)) |
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typedef struct { |
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unsigned int tot_len; |
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unsigned int len; |
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unsigned char block[2 * SHA256_BLOCK_SIZE]; |
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uint32_t h[8]; |
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} sha256_ctx; |
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uint32_t sha256_k[64]; |
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void sha256_init(sha256_ctx * ctx); |
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void sha256_update(sha256_ctx *ctx, const unsigned char *message, |
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unsigned int len); |
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void sha256_final(sha256_ctx *ctx, unsigned char *digest); |
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void sha256(const unsigned char *message, unsigned int len, |
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unsigned char *digest); |
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#endif /* !SHA2_H */
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