sha256.h

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// Copyright (c) 2014 The Bitcoin 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>
 
class CSHA256
{
private:
    uint32_t s[8];
    unsigned char buf[64];
    size_t bytes;
 
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]);
    CSHA256& Reset();
};
 
#endif // BITCOIN_CRYPTO_SHA256_H