des_testdlg.cpp

加密解密的源代码

// DES_TestDlg.cpp : implementation file
//

#include "stdafx.h"
#include "DES_Test.h"
#include "DES_TestDlg.h"


#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()

/////////////////////////////////////////////////////////////////////////////
// CDES_TestDlg dialog

CDES_TestDlg::CDES_TestDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDES_TestDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDES_TestDlg)
	m_strKey = _T("");
	m_strOriData = _T("");
	m_strEncrypt = _T("");
	m_strDecrypt = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDES_TestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDES_TestDlg)
	DDX_Text(pDX, IDC_EDIT_KEY, m_strKey);
	DDX_Text(pDX, IDC_EDIT_ORIGINAL_DATA, m_strOriData);
	DDX_Text(pDX, IDC_EDIT_ENCRYPT, m_strEncrypt);
	DDX_Text(pDX, IDC_EDIT_DECRYPT, m_strDecrypt);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDES_TestDlg, CDialog)
	//{{AFX_MSG_MAP(CDES_TestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_ENCRYPT, OnButtonEncrypt)
	ON_BN_CLICKED(IDC_BUTTON_DECRYPT, OnButtonDecrypt)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDES_TestDlg message handlers

BOOL CDES_TestDlg::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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDES_TestDlg::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 CDES_TestDlg::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 CDES_TestDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CDES_TestDlg::OnButtonEncrypt() 
{
	UpdateData();
	m_strKey.TrimLeft();
	m_strKey.TrimRight();
	m_strOriData.TrimLeft();
	m_strOriData.TrimRight();

	if ( m_strKey.IsEmpty() )
	{
		MessageBox("Please input the KEY!");
		GetDlgItem(IDC_EDIT_KEY)->SetFocus();
		return;
	}
	if ( m_strOriData.IsEmpty() )
	{
		MessageBox("Please input the original data!");
		GetDlgItem(IDC_EDIT_ORIGINAL_DATA)->SetFocus();
		return;
	}
	
	char szKey[9];
	char data[33];
	char szOutput[33];
	strncpy(szKey,(LPCTSTR)m_strKey,8);
	strncpy(data,(LPCTSTR)m_strOriData,32);
	szKey[8]=0;
	data[32]=0;
	DES((UCHAR *)data,(UCHAR *)szOutput,(UCHAR *)szKey,ENCRYPT);
	szOutput[8]=0;
	m_strEncrypt=szOutput;
	UpdateData(FALSE);
}

void CDES_TestDlg::OnButtonDecrypt() 
{
	UpdateData();
	m_strKey.TrimLeft();
	m_strKey.TrimRight();

	if ( m_strKey.IsEmpty() )
	{
		MessageBox("Please input the KEY!");
		GetDlgItem(IDC_EDIT_KEY)->SetFocus();
		return;
	}
	
	char szKey[9];
	char data[33];
	char szOutput[33];
	strncpy(szKey,(LPCTSTR)m_strKey,8);
	strncpy(data,(LPCTSTR)m_strEncrypt,32);
	szKey[8]=0;
	data[32]=0;
	DES((UCHAR *)data,(UCHAR *)szOutput,(UCHAR *)szKey,DECRYPT);
	szOutput[8]=0;
	m_strDecrypt=szOutput;
	UpdateData(FALSE);
}