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