47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2014 The Bitcoin Core developers
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef FLOWEE_CRYPTO_HMAC_SHA256_H
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#define FLOWEE_CRYPTO_HMAC_SHA256_H
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#include "sha256.h"
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#include <cstdint>
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#include <cstdlib>
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/** A hasher class for HMAC-SHA-512. */
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class CHMAC_SHA256
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{
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private:
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CSHA256 outer;
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CSHA256 inner;
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public:
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static const size_t OUTPUT_SIZE = 32;
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CHMAC_SHA256(const unsigned char* key, size_t keylen);
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CHMAC_SHA256& write(const unsigned char* data, size_t len)
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{
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inner.write(data, len);
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return *this;
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}
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void finalize(unsigned char hash[OUTPUT_SIZE]);
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};
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#endif
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