107 lines
3 KiB
C++
107 lines
3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <comphelper/crypto/Crypto.hxx>
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#include <com/sun/star/uno/RuntimeException.hpp>
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#include <sal/types.h>
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#include <config_oox.h>
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namespace comphelper
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{
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Crypto::Crypto()
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: mpImpl(ICryptoImplementation::createInstance())
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{
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}
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Crypto::~Crypto() = default;
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// DECRYPT
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Decrypt::Decrypt(std::vector<sal_uInt8>& key, std::vector<sal_uInt8>& iv, CryptoType type)
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{
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mpImpl->setupDecryptContext(key, iv, type);
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}
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sal_uInt32 Decrypt::update(std::vector<sal_uInt8>& output, std::vector<sal_uInt8>& input,
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sal_uInt32 inputLength)
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{
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sal_uInt32 actualInputLength
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= inputLength == 0 || inputLength > input.size() ? input.size() : inputLength;
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return mpImpl->decryptUpdate(output, input, actualInputLength);
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}
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sal_uInt32 Decrypt::aes128ecb(std::vector<sal_uInt8>& output, std::vector<sal_uInt8>& input,
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std::vector<sal_uInt8>& key)
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{
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sal_uInt32 outputLength = 0;
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std::vector<sal_uInt8> iv;
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Decrypt crypto(key, iv, CryptoType::AES_128_ECB);
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outputLength = crypto.update(output, input);
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return outputLength;
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}
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// ENCRYPT
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Encrypt::Encrypt(std::vector<sal_uInt8>& key, std::vector<sal_uInt8>& iv, CryptoType type)
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{
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mpImpl->setupEncryptContext(key, iv, type);
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}
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sal_uInt32 Encrypt::update(std::vector<sal_uInt8>& output, std::vector<sal_uInt8>& input,
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sal_uInt32 inputLength)
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{
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sal_uInt32 actualInputLength
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= inputLength == 0 || inputLength > input.size() ? input.size() : inputLength;
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return mpImpl->encryptUpdate(output, input, actualInputLength);
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}
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// CryptoHash - HMAC
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namespace
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{
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sal_Int32 getSizeForHashType(CryptoHashType eType)
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{
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switch (eType)
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{
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case CryptoHashType::SHA1:
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return 20;
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case CryptoHashType::SHA256:
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return 32;
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case CryptoHashType::SHA384:
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return 48;
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case CryptoHashType::SHA512:
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return 64;
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}
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return 0;
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}
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} // end anonymous namespace
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CryptoHash::CryptoHash(std::vector<sal_uInt8>& rKey, CryptoHashType eType)
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: mnHashSize(getSizeForHashType(eType))
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{
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mpImpl->setupCryptoHashContext(rKey, eType);
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}
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bool CryptoHash::update(std::vector<sal_uInt8>& rInput, sal_uInt32 nInputLength)
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{
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sal_uInt32 nActualInputLength
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= (nInputLength == 0 || nInputLength > rInput.size()) ? rInput.size() : nInputLength;
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return mpImpl->cryptoHashUpdate(rInput, nActualInputLength);
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}
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std::vector<sal_uInt8> CryptoHash::finalize()
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{
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std::vector<sal_uInt8> aHash(mnHashSize, 0);
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mpImpl->cryptoHashFinalize(aHash);
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return aHash;
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}
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} // namespace comphelper
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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