// Copyright (c) 2016-2024 The Hush developers
// Copyright (c) 2014 The Bitcoin Core developers
// Distributed under the GPLv3 software license, see the accompanying
// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html

#ifndef HUSH_CRYPTO_SHA512_H
#define HUSH_CRYPTO_SHA512_H

#include <stdint.h>
#include <stdlib.h>

/** A hasher class for SHA-512. */
class CSHA512
{
private:
    uint64_t s[8];
    unsigned char buf[128];
    size_t bytes;

public:
    static const size_t OUTPUT_SIZE = 64;

    CSHA512();
    CSHA512& Write(const unsigned char* data, size_t len);
    void Finalize(unsigned char hash[OUTPUT_SIZE]);
    CSHA512& Reset();
};

#endif // HUSH_CRYPTO_SHA512_H