hash.h (2009B)
1 /*********************************************************************** 2 * Copyright (c) 2014 Pieter Wuille * 3 * Distributed under the MIT software license, see the accompanying * 4 * file COPYING or https://www.opensource.org/licenses/mit-license.php.* 5 ***********************************************************************/ 6 7 #ifndef SECP256K1_HASH_H 8 #define SECP256K1_HASH_H 9 10 #include <stdlib.h> 11 #include <stdint.h> 12 13 typedef struct { 14 uint32_t s[8]; 15 unsigned char buf[64]; 16 uint64_t bytes; 17 } haskellsecp256k1_v0_1_0_sha256; 18 19 static void haskellsecp256k1_v0_1_0_sha256_initialize(haskellsecp256k1_v0_1_0_sha256 *hash); 20 static void haskellsecp256k1_v0_1_0_sha256_write(haskellsecp256k1_v0_1_0_sha256 *hash, const unsigned char *data, size_t size); 21 static void haskellsecp256k1_v0_1_0_sha256_finalize(haskellsecp256k1_v0_1_0_sha256 *hash, unsigned char *out32); 22 23 typedef struct { 24 haskellsecp256k1_v0_1_0_sha256 inner, outer; 25 } haskellsecp256k1_v0_1_0_hmac_sha256; 26 27 static void haskellsecp256k1_v0_1_0_hmac_sha256_initialize(haskellsecp256k1_v0_1_0_hmac_sha256 *hash, const unsigned char *key, size_t size); 28 static void haskellsecp256k1_v0_1_0_hmac_sha256_write(haskellsecp256k1_v0_1_0_hmac_sha256 *hash, const unsigned char *data, size_t size); 29 static void haskellsecp256k1_v0_1_0_hmac_sha256_finalize(haskellsecp256k1_v0_1_0_hmac_sha256 *hash, unsigned char *out32); 30 31 typedef struct { 32 unsigned char v[32]; 33 unsigned char k[32]; 34 int retry; 35 } haskellsecp256k1_v0_1_0_rfc6979_hmac_sha256; 36 37 static void haskellsecp256k1_v0_1_0_rfc6979_hmac_sha256_initialize(haskellsecp256k1_v0_1_0_rfc6979_hmac_sha256 *rng, const unsigned char *key, size_t keylen); 38 static void haskellsecp256k1_v0_1_0_rfc6979_hmac_sha256_generate(haskellsecp256k1_v0_1_0_rfc6979_hmac_sha256 *rng, unsigned char *out, size_t outlen); 39 static void haskellsecp256k1_v0_1_0_rfc6979_hmac_sha256_finalize(haskellsecp256k1_v0_1_0_rfc6979_hmac_sha256 *rng); 40 41 #endif /* SECP256K1_HASH_H */