59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
/*
|
|
* synergy -- mouse and keyboard sharing utility
|
|
* Copyright (C) 2013 Bolton Software Ltd.
|
|
*
|
|
* This package is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* found in the file COPYING that should have accompanied this file.
|
|
*
|
|
* This package is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <cryptopp562/gcm.h>
|
|
#include <cryptopp562/modes.h>
|
|
#include <cryptopp562/aes.h>
|
|
#include "ECryptoMode.h"
|
|
#include "CString.h"
|
|
|
|
//! Encapsulation of modes
|
|
/*!
|
|
Polymorphism is tricky in Crypto++, so we encapsulate all crypto modes
|
|
and switch based on an enum for ctor, dtor and all functions.
|
|
*/
|
|
class CCryptoMode {
|
|
public:
|
|
CCryptoMode(ECryptoMode mode, bool encryption = true);
|
|
~CCryptoMode();
|
|
|
|
//! Encrypt or decrypt data
|
|
void processData(byte* out, const byte* in, size_t length);
|
|
|
|
//! Variable length key and initialization vector
|
|
void setKeyWithIv(const byte* key, size_t length, const byte* iv);
|
|
|
|
private:
|
|
typedef CryptoPP::OFB_Mode<CryptoPP::AES>::Encryption COfbModeEnc;
|
|
typedef CryptoPP::CFB_Mode<CryptoPP::AES>::Encryption CCfbModeEnc;
|
|
typedef CryptoPP::CTR_Mode<CryptoPP::AES>::Encryption CCtrModeEnc;
|
|
typedef CryptoPP::GCM<CryptoPP::AES>::Encryption CGcmModeEnc;
|
|
|
|
typedef CryptoPP::OFB_Mode<CryptoPP::AES>::Decryption COfbModeDec;
|
|
typedef CryptoPP::CFB_Mode<CryptoPP::AES>::Decryption CCfbModeDec;
|
|
typedef CryptoPP::CTR_Mode<CryptoPP::AES>::Decryption CCtrModeDec;
|
|
typedef CryptoPP::GCM<CryptoPP::AES>::Decryption CGcmModeDec;
|
|
|
|
static CCryptoMode::ECryptoMode parseMode(CString& mode);
|
|
|
|
ECryptoMode m_mode;
|
|
void* m_crypto;
|
|
bool m_encryption;
|
|
};
|