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// Copyright (c) 2014-2022 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_SHA1_H
#define BITCOIN_CRYPTO_SHA1_H
#include <cstdlib>
#include <stdint.h>
/** A hasher class for SHA1. */
class CSHA1
{
private:
uint32_t s[5];
unsigned char buf[64];
uint64_t bytes{0};
public:
static const size_t OUTPUT_SIZE = 20;
CSHA1();
CSHA1& Write(const unsigned char* data, size_t len);
void Finalize(unsigned char hash[OUTPUT_SIZE]);
CSHA1& Reset();
};
#endif // BITCOIN_CRYPTO_SHA1_H
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