1 /* 2 * Copyright (C) 2006-2009 Vincent Hanquez <vincent@snarc.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #ifndef CRYPTOHASH_SHA256_H 26 #define CRYPTOHASH_SHA256_H 27 28 #include <stdint.h> 29 30 #define SHA256_BLOCK_SIZE 64 31 32 struct sha256_ctx 33 { 34 uint64_t sz; 35 uint8_t buf[128]; 36 uint32_t h[8]; 37 }; 38 39 #define sha224_ctx sha256_ctx 40 41 #define SHA224_DIGEST_SIZE 28 42 #define SHA224_CTX_SIZE sizeof(struct sha224_ctx) 43 44 #define SHA256_DIGEST_SIZE 32 45 #define SHA256_CTX_SIZE sizeof(struct sha256_ctx) 46 47 void cryptonite_sha224_init(struct sha224_ctx *ctx); 48 void cryptonite_sha224_update(struct sha224_ctx *ctx, const uint8_t *data, uint32_t len); 49 void cryptonite_sha224_finalize(struct sha224_ctx *ctx, uint8_t *out); 50 void cryptonite_sha224_finalize_prefix(struct sha224_ctx *ctx, const uint8_t *data, uint32_t len, uint32_t n, uint8_t *out); 51 52 void cryptonite_sha256_init(struct sha256_ctx *ctx); 53 void cryptonite_sha256_update(struct sha256_ctx *ctx, const uint8_t *data, uint32_t len); 54 void cryptonite_sha256_finalize(struct sha256_ctx *ctx, uint8_t *out); 55 void cryptonite_sha256_finalize_prefix(struct sha256_ctx *ctx, const uint8_t *data, uint32_t len, uint32_t n, uint8_t *out); 56 57 #endif 58