Bitcoin Core  0.18.99
P2P Digital Currency
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_SHA256_H
6 #define BITCOIN_CRYPTO_SHA256_H
7 
8 #include <stdint.h>
9 #include <stdlib.h>
10 #include <string>
11 
13 class CSHA256
14 {
15 private:
16  uint32_t s[8];
17  unsigned char buf[64];
18  uint64_t bytes;
19 
20 public:
21  static const size_t OUTPUT_SIZE = 32;
22 
23  CSHA256();
24  CSHA256& Write(const unsigned char* data, size_t len);
25  void Finalize(unsigned char hash[OUTPUT_SIZE]);
26  CSHA256& Reset();
27 };
28 
32 std::string SHA256AutoDetect();
33 
39 void SHA256D64(unsigned char* output, const unsigned char* input, size_t blocks);
40 
41 #endif // BITCOIN_CRYPTO_SHA256_H
CSHA256 & Write(const unsigned char *data, size_t len)
Definition: sha256.cpp:648
uint32_t s[8]
Definition: sha256.h:16
void SHA256D64(unsigned char *output, const unsigned char *input, size_t blocks)
Compute multiple double-SHA256&#39;s of 64-byte blobs.
Definition: sha256.cpp:698
CSHA256 & Reset()
Definition: sha256.cpp:691
void Finalize(unsigned char hash[OUTPUT_SIZE])
Definition: sha256.cpp:674
uint64_t bytes
Definition: sha256.h:18
static const size_t OUTPUT_SIZE
Definition: sha256.h:21
CSHA256()
Definition: sha256.cpp:643
unsigned char buf[64]
Definition: sha256.h:17
std::string SHA256AutoDetect()
Autodetect the best available SHA256 implementation.
Definition: sha256.cpp:573
A hasher class for SHA-256.
Definition: sha256.h:13