Bitcoin Core  0.20.99
P2P Digital Currency
hash.h
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1 /**********************************************************************
2  * Copyright (c) 2014 Pieter Wuille *
3  * Distributed under the MIT software license, see the accompanying *
4  * file COPYING or http://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  uint32_t buf[16]; /* In big endian */
16  size_t bytes;
18 
20 static void secp256k1_sha256_write(secp256k1_sha256 *hash, const unsigned char *data, size_t size);
21 static void secp256k1_sha256_finalize(secp256k1_sha256 *hash, unsigned char *out32);
22 
23 typedef struct {
26 
27 static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256 *hash, const unsigned char *key, size_t size);
28 static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256 *hash, const unsigned char *data, size_t size);
29 static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256 *hash, unsigned char *out32);
30 
31 typedef struct {
32  unsigned char v[32];
33  unsigned char k[32];
34  int retry;
36 
37 static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256 *rng, const unsigned char *key, size_t keylen);
38 static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256 *rng, unsigned char *out, size_t outlen);
40 
41 #endif /* SECP256K1_HASH_H */
static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256 *rng, const unsigned char *key, size_t keylen)
static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256 *hash, const unsigned char *key, size_t size)
secp256k1_sha256 outer
Definition: hash.h:24
static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256 *hash, const unsigned char *data, size_t size)
static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256 *hash, unsigned char *out32)
static void secp256k1_sha256_write(secp256k1_sha256 *hash, const unsigned char *data, size_t size)
static void secp256k1_sha256_initialize(secp256k1_sha256 *hash)
static void secp256k1_sha256_finalize(secp256k1_sha256 *hash, unsigned char *out32)
size_t bytes
Definition: hash.h:16
static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256 *rng)
static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256 *rng, unsigned char *out, size_t outlen)