desdlg.cpp

本程序利用DES加密编码来实现支付系统的加密 先将账号的姓名 号码转化成UNICODE 然后对这些UNICODE进行加密 从而保护用户的信息不被改变

// desDlg.cpp : implementation file
//

#include "stdafx.h"
#include "des.h"
#include "desDlg.h"
#include "mydes.h"
#include "FILEDES.h"
#include <string>
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();
	
	// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA
	
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL
	
	// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDesDlg dialog

CDesDlg::CDesDlg(CWnd* pParent /*=NULL*/)
: CDialog(CDesDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDesDlg)
	m_key = _T("");
	m_Code = _T("");
	m_Decode = _T("");
	m_codefilepath = _T("");
	m_decodefilepath = _T("");
	m_testspeed = _T("");
	m_help = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDesDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDesDlg)
	DDX_Text(pDX, IDC_EDIT1, m_key);
	DDV_MaxChars(pDX, m_key, 8);
	DDX_Text(pDX, IDC_EDIT2, m_Code);
	DDX_Text(pDX, IDC_EDIT3, m_Decode);
	DDX_Text(pDX, IDC_EDIT4, m_codefilepath);
	DDX_Text(pDX, IDC_EDIT5, m_decodefilepath);
	DDX_Text(pDX, IDC_EDIT6, m_testspeed);
	DDX_Text(pDX, IDC_EDIT7, m_help);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDesDlg, CDialog)
//{{AFX_MSG_MAP(CDesDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_Encrypt, OnEncrypt)
ON_BN_CLICKED(IDC_ClearAll, OnClearAll)
ON_BN_CLICKED(IDC_BUTTON4, OnCLEARCODE)
ON_BN_CLICKED(IDC_CLEARDECODE, OnCleardecode)
ON_BN_CLICKED(IDC_DeEncrypt, OnDeEncrypt)
ON_BN_CLICKED(IDC_SAVECODETOFLIE, OnSavecodetoflie)
ON_BN_CLICKED(IDC_CODEPATH, OnCodepath)
ON_BN_CLICKED(IDC_FILEENCRYPT, OnFileencrypt)
ON_BN_CLICKED(IDC_DECODEPATH, OnDecodepath)
ON_BN_CLICKED(IDC_FILEDEENCRYPT, OnFiledeencrypt)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDesDlg message handlers

BOOL CDesDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	
	// Add "About..." menu item to system menu.
	
	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);
	
	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}
	
	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	m_help="Tips:\r\n1.本程序可以加密1-4096个字符的任意长度字符串\r\n2.密钥长度不能过短或者为空\r\n3.加密结果将用16进制字符显示\r\n4.本加密程序同时支持中/英文字符(包括密钥和明文)\r\n5.本加密程序支持特殊字符[例如换行符(回车键)]\r\n\r\nAttention:\r\n1.加密时,密文的最后一个字符请不要使用半角美元符号'$'\r\n2.字符串加密最多支持加密4096个英文字符(解密\r\n最多为8192个十六进制字符)，如果需要加密的内容过多,请使用文件加密\r\n3.为了保证您的数据安全,建议不要使用默认密钥,并保持您的密钥在八位以上\r\n4.如果您有兴趣可以改写源码为3个密钥的\r\n";
UpdateData(false);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDesDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CDesDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting
		
		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
		
		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;
		
		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CDesDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}



void CDesDlg::OnEncrypt() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	myDES* my_des = new myDES();
	if (m_key.IsEmpty()) return;
	my_des->InitializeKey((LPCSTR)m_key);
	char temp[32] = {0};
	
	my_des->EncryptAnyLength((LPCSTR)m_Code);
	CString s1,s2;
	s1.Format("%s",my_des->GetCiphertextAnyLength());
	GetDlgItem(IDC_EDIT3)->SetWindowText(s1);
}

void CDesDlg::OnClearAll() 
{
	// TODO: Add your control notification handler code here
	m_Code.Empty(); 
	m_key.Empty(); 
	m_Decode.Empty();
	UpdateData(false);   
}

void CDesDlg::OnCLEARCODE() 
{
	// TODO: Add your control notification handler code here
	
	GetDlgItem(IDC_EDIT2)->SetWindowText("");      
	GetDlgItem(IDC_EDIT2)->Invalidate();
	//	m_Code=""; 
	
	//  UpdateData(false);   
}

void CDesDlg::OnCleardecode() 
{
	// TODO: Add your control notification handler code here
	CEdit*   edit3=(CEdit*)GetDlgItem(IDC_EDIT3);   
	//edit3->SetSel(0,-1);
	//edit3->Clear();   
	
	//edit3->SetWindowText("");   
	
	GetDlgItem(IDC_EDIT3)->SetWindowText("");      
	GetDlgItem(IDC_EDIT3)->Invalidate();
	//	m_Decode.Empty();
	// UpdateData(false);   
}

void CDesDlg::OnDeEncrypt() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	myDES* my_des = new myDES();
	if (m_key.IsEmpty()) return;
	my_des->InitializeKey((LPCSTR)m_key);	
	char temp[32] = {0};
	CString s2;
	my_des->DecryptAnyLength((LPCSTR)m_Decode);
	s2.Format("%s",my_des->GetPlaintextAnyLength());
	GetDlgItem(IDC_EDIT2)->SetWindowText(s2);
	
}

void CDesDlg::OnSavecodetoflie() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	CFileDialog dlg(1,NULL,NULL,OFN_HIDEREADONLY ,"All Files(*.*)|*.*||");
	if(IDOK!=dlg.DoModal())return;
	CString m_savefile;
	m_savefile=dlg.GetPathName();
	UpdateData(TRUE);
	HANDLE  hfile;
	hfile=CreateFile(m_savefile,GENERIC_WRITE,0,NULL,CREATE_NEW,FILE_ATTRIBUTE_NORMAL,NULL);
	DWORD dwWrites;
	WriteFile(hfile,m_Decode,strlen(m_Decode),&dwWrites,NULL);
	CloseHandle(hfile);
}

void CDesDlg::OnCodepath() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_decodefilepath="";
	UpdateData(false);
	UpdateData(TRUE);
	CFileDialog dlg(1,NULL,NULL,OFN_HIDEREADONLY ,"All Files(*.*)|*.*||");
	if(IDOK!=dlg.DoModal())return;
	m_codefilepath=dlg.GetPathName();
	if (m_decodefilepath=="")
	{m_decodefilepath=m_codefilepath+".des";
	GetDlgItem(IDC_EDIT5)->SetWindowText(m_decodefilepath);
	}
	UpdateData(FALSE);	
	
}

void CDesDlg::OnFileencrypt() 
{
	// TODO: Add your control notification handler code here
/*	UpdateData(TRUE);
	if(m_codefilepath=="")return;
	CFile ff(m_codefilepath,CFile::modeRead);
	DWORD dwFileLen=ff.GetLength();
	char *pBuf;
	/*	CFile fp(m_decodefilepath,CFile::modeCreate|CFile::modeWrite);*/
	/*CTime tm1,tm2;
	tm1=CTime::GetCurrentTime();
	pBuf=new char[dwFileLen+1];
	pBuf[dwFileLen]=0;
	ff.Read(pBuf,dwFileLen);
	ff.Close();
	//MessageBox(pBuf);
	CString s=pBuf; 
	FileEncrypt(s);
	 tm2=CTime::GetCurrentTime();
	CTimeSpan tmSpan=tm2-tm1;
	CString strspan=tmSpan.Format("Seconds:%S");
    m_testspeed=strspan+"s";
	//	fp.Close();
	GetDlgItem(IDC_EDIT6)->SetWindowText(m_testspeed);
	UpdateData(FALSE);*/
	//AfxMessageBox("加密成功！");*/
	////////////////////////////////////////////////////////////////
	//-------------------------------------------------
	
	
	UpdateData(TRUE);
	if (m_key=="") {MessageBox("请输入密钥");return;
	}
	if(m_codefilepath=="")return;
	CFile ff(m_codefilepath,CFile::modeRead);
long lFileLen=ff.GetLength();
long c=lFileLen/8;
long d=lFileLen%8;
if (m_codefilepath=="")
m_decodefilepath=m_codefilepath+".aen";


   CFile fp(m_decodefilepath,CFile::modeCreate|CFile::modeWrite);
   fp.SeekToBegin();
   ff.SeekToBegin();

//CString inbuff;


DES jm;




char inbuff[8],oubuff[8],skey[8];

/*	char *cr=NULL;
for(int j=0;j<16;j++)
 {
CString str=m_filekey.Mid(2*j,2);
skey[j]=unsigned char(strtol(str,&cr,16));
}*/
memcpy(skey,(LPCTSTR)m_key,8);

    CTime tm1,tm2;
	tm1=CTime::GetCurrentTime();

	for(long i=0;i<c;i++)
	{
		ff.Read(inbuff,8);
		jm.Des_Go(oubuff, inbuff, sizeof(inbuff), skey,sizeof(skey), ENCRYPT);
		fp.Write(oubuff,8);
	}
	if(d>0)
	{
		ff.Read(inbuff,d);
		jm.Des_Go(oubuff, inbuff, sizeof(inbuff), skey,sizeof(skey), ENCRYPT);
		fp.Write(oubuff,8);
	}
    tm2=CTime::GetCurrentTime();
	CTimeSpan tmSpan=tm2-tm1;

	CString strspan=tmSpan.Format("Seconds:%S");
    m_testspeed=strspan+"s";
     
	ff.Close();
	fp.Close();
	AfxMessageBox("加密成功！");
	UpdateData(FALSE);
}

void CDesDlg::FileEncrypt(CString file)
{
	myDES* my_des = new myDES();
	my_des->InitializeKey((LPCSTR)m_key);
	char temp[32] = {0};
	my_des->EncryptAnyLength((LPCSTR)file);
	CString s1;
	s1.Format("%s",my_des->GetCiphertextAnyLength());
	CString path;
	CodeToFile(s1,m_decodefilepath);
}

void CDesDlg::CodeToFile(CString s1,CString path)
{HANDLE  hfile;
hfile=CreateFile(path,GENERIC_WRITE,0,NULL,CREATE_NEW,FILE_ATTRIBUTE_NORMAL,NULL);
DWORD dwWrites;
WriteFile(hfile,s1,strlen(s1),&dwWrites,NULL);
CloseHandle(hfile);
}

void CDesDlg::OnDecodepath() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	CFileDialog dlg(1,NULL,NULL,OFN_HIDEREADONLY ,"All Files(*.*)|*.*||");
	if(IDOK!=dlg.DoModal())return;
	m_decodefilepath=dlg.GetPathName();
	UpdateData(FALSE);/*All Files(*.*)|*.*||"//All Files(*.*)\0*.**/
	
}

void CDesDlg::OnFiledeencrypt() 
{
	// TODO: Add your control notification handler code here
	/*UpdateData(TRUE);
	if(m_codefilepath=="")return;
	CFile fp(m_decodefilepath,CFile::modeRead);
	DWORD dwFileLen=fp.GetLength();
	char *pBuf;
	/*	CFile fp(m_decodefilepath,CFile::modeCreate|CFile::modeWrite);*/
/*	CTime tm1,tm2;
	tm1=CTime::GetCurrentTime();
	pBuf=new char[dwFileLen+1];
	pBuf[dwFileLen]=0;
	fp.Read(pBuf,dwFileLen);
	fp.Close();
	//MessageBox(pBuf);
	CString codedfile=pBuf; 
	FileDeEncrypt(codedfile);*/
	
	//	fp.Close();
/*	GetDlgItem(IDC_EDIT6)->SetWindowText(m_testspeed);
	UpdateData(FALSE);*/

//	AfxMessageBox("解密成功！");
	
	UpdateData(TRUE);
		if (m_key=="") {MessageBox("请输入密钥");return;
	}
if(m_codefilepath=="")return;
CFile ff(m_decodefilepath,CFile::modeRead);
long lFileLen=ff.GetLength();
long c=lFileLen/8;
long d=lFileLen%8;

   CFile fp(m_codefilepath,CFile::modeCreate|CFile::modeWrite);
   fp.SeekToBegin();
   ff.SeekToBegin();

//CString inbuff;


DES jm;

 char inbuff[8],oubuff[8],skey[8];

 memcpy(skey,(LPCTSTR)m_key,8);

CTime tm1,tm2;
	tm1=CTime::GetCurrentTime();

for(long i=0;i<c;i++)
	{
		ff.Read(inbuff,8);
		
        jm.Des_Go(oubuff, inbuff, sizeof(inbuff), skey,sizeof(skey), DECRYPT);
		fp.Write(oubuff,8);
	}
	if(d>0)
	{
		AfxMessageBox("文件可能已损坏或非经des加密过");
	}
    tm2=CTime::GetCurrentTime();
	CTimeSpan tmSpan=tm2-tm1;

	CString strspan=tmSpan.Format("Seconds:%S");

m_testspeed=strspan+"s";
     
	ff.Close();
	fp.Close();
	AfxMessageBox("解密成功！");
	UpdateData(FALSE);	
}

void CDesDlg::FileDeEncrypt(CString file)
{	UpdateData();
myDES* my_des = new myDES();
my_des->InitializeKey((LPCSTR)m_key);	
char temp[32] = {0};
CString s2;
my_des->DecryptAnyLength((LPCSTR)file);
s2.Format("%s",my_des->GetPlaintextAnyLength());
CodeToFile(s2,m_codefilepath);
}