50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
/*
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* Copyright (C) 2015 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero 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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* Scylla 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 Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1
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#include <cryptopp/md5.h>
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#include "hashing.hh"
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#include "bytes.hh"
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class md5_hasher {
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CryptoPP::Weak::MD5 hash{};
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public:
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void update(const char* ptr, size_t length) {
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static_assert(sizeof(char) == sizeof(byte), "Assuming lengths will be the same");
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hash.Update(reinterpret_cast<const byte*>(ptr), length * sizeof(byte));
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}
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bytes finalize() {
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bytes digest{bytes::initialized_later(), CryptoPP::Weak::MD5::DIGESTSIZE};
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hash.Final(reinterpret_cast<unsigned char*>(digest.begin()));
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return digest;
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}
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std::array<uint8_t, CryptoPP::Weak::MD5::DIGESTSIZE> finalize_array() {
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std::array<uint8_t, CryptoPP::Weak::MD5::DIGESTSIZE> array;
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hash.Final(reinterpret_cast<unsigned char*>(array.data()));
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return array;
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}
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};
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