33 lines
850 B
C++
33 lines
850 B
C++
// Copyright (c) 2014 The Bitcoin Core developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#ifndef BITCOIN_CRYPTO_SHA256_H
|
|
#define BITCOIN_CRYPTO_SHA256_H
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
|
|
/** A hasher class for SHA-256. */
|
|
class CSHA256
|
|
{
|
|
public:
|
|
static const size_t OUTPUT_SIZE = 32;
|
|
|
|
CSHA256();
|
|
CSHA256& Write(const unsigned char* data, size_t len);
|
|
void Finalize(unsigned char hash[OUTPUT_SIZE]);
|
|
void FinalizeNoPadding(unsigned char hash[OUTPUT_SIZE]) {
|
|
FinalizeNoPadding(hash, true);
|
|
};
|
|
CSHA256& Reset();
|
|
|
|
private:
|
|
uint32_t s[8];
|
|
unsigned char buf[64];
|
|
size_t bytes;
|
|
void FinalizeNoPadding(unsigned char hash[OUTPUT_SIZE], bool enforce_compression);
|
|
};
|
|
|
|
#endif // BITCOIN_CRYPTO_SHA256_H
|