c_desencryptfile.h

RSA和DES的一些类~~可以对初学者有些帮助

// C_DesEncryptFile.h: interface for the C_DesEncryptFile class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_C_DESENCRYPTFILE_H__3667F854_C709_40B4_AFD3_265D4B1B0618__INCLUDED_)
#define AFX_C_DESENCRYPTFILE_H__3667F854_C709_40B4_AFD3_265D4B1B0618__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <tchar.h>


namespace  Encrypt {
class C_DesEncryptFile  
{
	typedef unsigned char BYTE;
	typedef  BYTE*         LPBYTE;
	typedef  const BYTE*  LPCBYTE;
	typedef  const TCHAR  *LPCSTR;
public:
	C_DesEncryptFile();
	virtual ~C_DesEncryptFile();
public:
	 bool EncryptFile(LPCBYTE lpSource, LPBYTE lpDest, unsigned int nSize, const BYTE key[8], bool bFlag);
	 bool EncryptFile(LPCTSTR lpSourceFile, LPCTSTR lpszDestFile, const BYTE key[8], bool bFlag);

private:
	HANDLE OpenFile(LPCTSTR lpSourceFile, bool bReadMode);    
	LPBYTE GetFileBuffer(HANDLE &hFile, DWORD &dwFileSize);

};
};

#endif // !defined(AFX_C_DESENCRYPTFILE_H__3667F854_C709_40B4_AFD3_265D4B1B0618__INCLUDED_)