encoder.h

这是一个基于VS2003开发的数据加密和解密的程序

/*!
	\file Encoder.h
	\author Jackson
	\date 13/1/2005
*/

#ifndef _LUCID_ENCRYPTION_ENCODER_H_
#define _LUCID_ENCRYPTION_ENCODER_H_

#ifdef _MSC_VER
#pragma once
#endif

#include "ShareLib.h"

#include "EncoderImplBase.h"
#include "EncodeAlgorithm.h"

namespace Lucid {

namespace Encryption {

//! \class TEncoder
/*!
	\brief Encoder interface class
*/
class LUCID_ENCRYPTION_API  TEncoder {

public:

	//! Constructor
	/*!
		\param key key for encryption
		\param key_length length of key
		\param iv initial vector encryption
		\param iv_length length of initial vector
		\param algorithm encode algorithm used
	*/
	TEncoder(const unsigned char* key, unsigned int key_length, const unsigned char* iv = 0, unsigned int iv_length = 0, TEncodeAlgorithm algorithm = NO_ENCODE);

	//! Copy Constructor
	/*!
		\param encoder encoder to be copied
	*/
	TEncoder(
		const TEncoder& encoder);

	//! Destructor
	/*!
	*/
	~TEncoder();

	/*!
		\brief encode input byte array
		\param input input byte array
		\param output output byte array
		\param input_len length of input array
		\param output_len length of output array
	*/
	void Encode(const unsigned char* input, unsigned char* output, const int input_len, int& output_len) {
		mEncoderImpl->Encode(input, output, input_len, output_len);
	}

	/*!
		\brief decode input byte array
		\param input input byte array
		\param output output byte array
		\param input_len length of input array
		\param output_len length of output array
	*/
	void Decode(const unsigned char* input, unsigned char* output, const int input_len, int& output_len) {
		mEncoderImpl->Decode(input, output, input_len, output_len);
	}

	/*!
		\brief get the key for encryption/ decryption
	*/
	const unsigned char* GetKey() const {
		return mEncoderImpl->GetKey();
	}

	/*!
		\brief get the key length for encryption/ decryption
	*/
	unsigned int GetKeyLength() const {
		return mEncoderImpl->GetKeyLength();
	}

	/*!
		\brief get the initial vector for encryption/ decryption
	*/
	const unsigned char* GetIV() const {
		return mEncoderImpl->GetIV();
	}

	/*!
		\brief get the initial vector length for encryption/ decryption
	*/
	unsigned int GetIVLength() const {
		return mEncoderImpl->GetIVLength();
	}

	/*!
		\brief get the algorithm for encryption/ decryption
	*/
	TEncodeAlgorithm GetAlgorithm() const {
		return mEncoderImpl->GetAlgorithm();
	}

private:
	TEncoderImplBase *mEncoderImpl;
};

}

}

#endif	// _LUCID_ENCRYPTION_ENCODER_H_