Bitcoin Core  0.19.99
P2P Digital Currency
hmac_sha256.h
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1 // Copyright (c) 2014-2018 The Bitcoin Core developers
2 // Distributed under the MIT software license, see the accompanying
3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 
5 #ifndef BITCOIN_CRYPTO_HMAC_SHA256_H
6 #define BITCOIN_CRYPTO_HMAC_SHA256_H
7 
8 #include <crypto/sha256.h>
9 
10 #include <stdint.h>
11 #include <stdlib.h>
12 
15 {
16 private:
19 
20 public:
21  static const size_t OUTPUT_SIZE = 32;
22 
23  CHMAC_SHA256(const unsigned char* key, size_t keylen);
24  CHMAC_SHA256& Write(const unsigned char* data, size_t len)
25  {
26  inner.Write(data, len);
27  return *this;
28  }
29  void Finalize(unsigned char hash[OUTPUT_SIZE]);
30 };
31 
32 #endif // BITCOIN_CRYPTO_HMAC_SHA256_H
CSHA256 & Write(const unsigned char *data, size_t len)
Definition: sha256.cpp:637
A hasher class for HMAC-SHA-256.
Definition: hmac_sha256.h:14
CSHA256 inner
Definition: hmac_sha256.h:18
CHMAC_SHA256 & Write(const unsigned char *data, size_t len)
Definition: hmac_sha256.h:24
CHMAC_SHA256(const unsigned char *key, size_t keylen)
Definition: hmac_sha256.cpp:9
CSHA256 outer
Definition: hmac_sha256.h:17
void Finalize(unsigned char hash[OUTPUT_SIZE])
Definition: hmac_sha256.cpp:29
static const size_t OUTPUT_SIZE
Definition: hmac_sha256.h:21
A hasher class for SHA-256.
Definition: sha256.h:13