xxtea.h

xxtea 加解密算法 MFC 实现

#pragma once

#include "afxtempl.h"

#ifndef DLL

#ifdef _DLL
#define DLL _declspec(dllexport)
#else
#define DLL 
#endif

#endif

class DLL CXXTea
{
public:
	CXXTea(void);
	~CXXTea(void);

	/**
	 * Encrypt data with key.
	 * 
	 * @param data
	 * @param key
	 * @return
	 */
	static bool encrypt(CArray<unsigned char,unsigned char> & result, const unsigned char* pData, int nDataLen, const unsigned char* pKey, int nKeyLen);

	///**
	// * Decrypt data with key.
	// * 
	// * @param data
	// * @param key
	// * @return
	// */
	static bool decrypt(CArray<unsigned char,unsigned char> & result, const unsigned char* pData, int nDataLen, const unsigned char* pKey, int nKeyLen);

	/**
	 * Encrypt data with key.
	 * 
	 * @param v
	 * @param k
	 * @return
	 */
	static CArray<int,int> & encrypt(CArray<int,int> & v, CArray<int,int> & k);

	/**
	 * Decrypt data with key.
	 * 
	 * @param v
	 * @param k
	 * @return
	 */
	static CArray<int,int> & decrypt(CArray<int,int> & v, CArray<int,int> & k);

private:

	///**
	// * Convert byte array to int array.
	// * 
	// * @param data
	// * @param includeLength
	// * @return
	// */
	static void toIntArray(CArray<int,int>& result, const unsigned char * pData, unsigned nDataLen, bool includeLength);

	///**
	// * Convert int array to byte array.
	// * 
	// * @param data
	// * @param includeLength
	// * @return
	// */
	static void toByteArray(CArray<unsigned char,unsigned char>& result, CArray<int,int>& data, bool includeLength);

};