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/*
* CBC Mode
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_CBC_H__
#define BOTAN_CBC_H__
#include <botan/modebase.h>
#include <botan/mode_pad.h>
namespace Botan {
/*
* CBC Encryption
*/
class BOTAN_DLL CBC_Encryption : public BlockCipherMode
{
public:
CBC_Encryption(BlockCipher*, BlockCipherModePaddingMethod*);
CBC_Encryption(BlockCipher*, BlockCipherModePaddingMethod*,
const SymmetricKey&, const InitializationVector&);
~CBC_Encryption() { delete padder; }
private:
std::string name() const;
void write(const byte[], u32bit);
void end_msg();
const BlockCipherModePaddingMethod* padder;
};
/*
* CBC Decryption
*/
class BOTAN_DLL CBC_Decryption : public BlockCipherMode
{
public:
CBC_Decryption(BlockCipher*, BlockCipherModePaddingMethod*);
CBC_Decryption(BlockCipher*, BlockCipherModePaddingMethod*,
const SymmetricKey&, const InitializationVector&);
~CBC_Decryption() { delete padder; }
private:
std::string name() const;
void write(const byte[], u32bit);
void end_msg();
const BlockCipherModePaddingMethod* padder;
SecureVector<byte> temp;
};
}
#endif
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