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o3de/Code/CryEngine/CrySystem/Cryptography/Crypto.cpp

58 lines
1.9 KiB
C++

/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
#include "CrySystem_precompiled.h"
#include <Cryptography/Crypto.h>
#include <Cryptography/StreamCipher.h>
//-----------------------------------------------------------------------------
void Crypto::EncryptBuffer(uint8* pOutput, const uint8* pInput, uint32 bufferLength, const uint8* pKey, uint32 keyLength)
{
if (pKey && (keyLength > 0))
{
StreamCipherState cipher;
m_streamCipher.Init(cipher, pKey, keyLength);
if (pInput && pOutput && (bufferLength > 0))
{
m_streamCipher.Encrypt(cipher, pInput, bufferLength, pOutput);
}
}
}
//-----------------------------------------------------------------------------
void Crypto::DecryptBuffer(uint8* pOutput, const uint8* pInput, uint32 bufferLength, const uint8* pKey, uint32 keyLength)
{
if (pKey && (keyLength > 0))
{
StreamCipherState cipher;
m_streamCipher.Init(cipher, pKey, keyLength);
if (pInput && pOutput && (bufferLength > 0))
{
m_streamCipher.Decrypt(cipher, pInput, bufferLength, pOutput);
}
}
}
//-----------------------------------------------------------------------------
IRijndael* Crypto::GetRijndael()
{
return &m_rijndael;
}
//-----------------------------------------------------------------------------
IStreamCipher* Crypto::GetStreamCipher()
{
return &m_streamCipher;
}