| Etienne Carriere | 7514117 | 2020-05-16 11:58:23 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: (BSD-2-Clause AND BSD-3-Clause) */ |
| Pascal Brand | c639ac8 | 2015-07-02 08:53:34 +0200 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (c) 2014, STMicroelectronics International N.V. |
| 4 | * All rights reserved. |
| Pascal Brand | c639ac8 | 2015-07-02 08:53:34 +0200 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * FIPS 180-2 SHA-224/256/384/512 implementation |
| 9 | * Last update: 02/02/2007 |
| 10 | * Issue date: 04/30/2005 |
| 11 | * |
| 12 | * Copyright (C) 2005, 2007 Olivier Gay <olivier.gay@a3.epfl.ch> |
| 13 | * All rights reserved. |
| 14 | * |
| 15 | * Redistribution and use in source and binary forms, with or without |
| 16 | * modification, are permitted provided that the following conditions |
| 17 | * are met: |
| 18 | * 1. Redistributions of source code must retain the above copyright |
| 19 | * notice, this list of conditions and the following disclaimer. |
| 20 | * 2. Redistributions in binary form must reproduce the above copyright |
| 21 | * notice, this list of conditions and the following disclaimer in the |
| 22 | * documentation and/or other materials provided with the distribution. |
| 23 | * 3. Neither the name of the project nor the names of its contributors |
| 24 | * may be used to endorse or promote products derived from this software |
| 25 | * without specific prior written permission. |
| 26 | * |
| 27 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| 28 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 30 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| 31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 35 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 36 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 37 | * SUCH DAMAGE. |
| 38 | */ |
| 39 | #include "stdint.h" |
| 40 | |
| 41 | #ifndef SHA2_IMPL_H |
| 42 | #define SHA2_IMPL_H |
| 43 | |
| 44 | #define SHA224_DIGEST_SIZE (224 / 8) |
| 45 | #define SHA256_DIGEST_SIZE (256 / 8) |
| 46 | |
| 47 | #define SHA256_BLOCK_SIZE (512 / 8) |
| 48 | #define SHA224_BLOCK_SIZE SHA256_BLOCK_SIZE |
| 49 | |
| 50 | struct sha224_ctx { |
| 51 | unsigned int tot_len; |
| 52 | unsigned int len; |
| 53 | unsigned char block[2 * SHA224_BLOCK_SIZE]; |
| 54 | uint32_t h[8]; |
| 55 | }; |
| 56 | |
| 57 | struct sha256_ctx { |
| 58 | unsigned int tot_len; |
| 59 | unsigned int len; |
| 60 | unsigned char block[2 * SHA256_BLOCK_SIZE]; |
| 61 | uint32_t h[8]; |
| 62 | }; |
| 63 | |
| 64 | void sha224_init(struct sha224_ctx *ctx); |
| 65 | void sha224_update(struct sha224_ctx *ctx, const unsigned char *message, |
| 66 | unsigned int len); |
| 67 | void sha224_final(struct sha224_ctx *ctx, unsigned char *digest); |
| 68 | void sha224(const unsigned char *message, unsigned int len, |
| 69 | unsigned char *digest); |
| 70 | |
| 71 | void sha256_init(struct sha256_ctx *ctx); |
| 72 | void sha256_update(struct sha256_ctx *ctx, const unsigned char *message, |
| 73 | unsigned int len); |
| 74 | void sha256_final(struct sha256_ctx *ctx, unsigned char *digest); |
| 75 | void sha256(const unsigned char *message, unsigned int len, |
| 76 | unsigned char *digest); |
| 77 | |
| 78 | void sha256_transf(struct sha256_ctx *ctx, const unsigned char *message, |
| 79 | unsigned int block_nb); |
| 80 | #endif |