cryptographydlg.cpp

一个加密解密的VC++程序..... 很简短,但是功能实现

// CryptographyDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Cryptography.h"
#include "CryptographyDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CCryptographyDlg dialog

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

void CCryptographyDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCryptographyDlg)
	DDX_Text(pDX, IDC_EDIT1, m_strInput);
	DDX_Text(pDX, IDC_EDIT2, m_strEncryptText);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCryptographyDlg, CDialog)
	//{{AFX_MSG_MAP(CCryptographyDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_CONFIRM_BUTTON, OnConfirmButton)
	ON_BN_CLICKED(IDC_UNCODE_BUTTON, OnUncodeButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCryptographyDlg message handlers

BOOL CCryptographyDlg::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
	
	int i=0,j=0;
	for(j=0;j<8;j++)
	{
		EncryptIP[0][j]=j;
	}
	EncryptIP[1][0]=4;
	EncryptIP[1][1]=5;
	EncryptIP[1][2]=8;
	EncryptIP[1][3]=1;
	EncryptIP[1][4]=2;
	EncryptIP[1][5]=7;
	EncryptIP[1][6]=3;
	EncryptIP[1][7]=6;

	EncryptIP[2][0]=4;
	EncryptIP[2][1]=5;
	EncryptIP[2][2]=7;
	EncryptIP[2][3]=1;
	EncryptIP[2][4]=2;
	EncryptIP[2][5]=8;
	EncryptIP[2][6]=6;
	EncryptIP[2][7]=3;
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CCryptographyDlg::OnConfirmButton() 
{
	// TODO: Add your control notification handler code here
	::SetWindowText(*GetDlgItem(IDC_EDIT2),"");
	m_strEncryptText="";					//清空密文变量
	UpdateData();
	TCHAR *szOriginText=NULL;				//存放明文字符串
	TCHAR *szDestText=NULL;					//存放密文
	int iLength=m_strInput.GetLength()+1;
	szOriginText=new TCHAR[iLength];
	szDestText=new TCHAR[iLength];
	//获取输入的明文
	::GetWindowText(*GetDlgItem(IDC_EDIT1),szOriginText,iLength);
	TCHAR szM[9]={"0"};					//存放待转换的8个明文
	TCHAR szC[9]={"0"};					//存放加密过的8个明文
	int i,j;
	//开始加密
	for(i=0;i<iLength;i+=8)
	{
		for(j=0;j<8;j++)
		{
			szDestText[i+j]=szOriginText[i+EncryptIP[1][j]-1];
		}
	}
	::SetWindowText(*GetDlgItem(IDC_EDIT2),szDestText);
	m_strEncryptText=szDestText;
	m_strEncryptText.TrimRight();
	UpdateData(FALSE);UpdateData();
}

void CCryptographyDlg::OnOK() 
{
	CDialog::OnOK();
}

void CCryptographyDlg::OnUncodeButton() 
{
	// TODO: Add your control notification handler code here
	::SetWindowText(*GetDlgItem(IDC_EDIT1),"");
	UpdateData();
	TCHAR *szOriginText=NULL;				//存放密文字符串
	TCHAR *szDestText=NULL;					//存放明文字符串
	int iLength=m_strEncryptText.GetLength()+1;
	szOriginText=new TCHAR[iLength];
	szDestText=new TCHAR[iLength];
	//获取输入的明文
	//::GetWindowText(*GetDlgItem(IDC_EDIT1),szOriginText,iLength);
	strcpy(szOriginText,m_strEncryptText);
	int i,j;
	//开始加密
	char c;
	for(i=0;i<iLength;i+=8)
	{

		for(j=0;j<8;j++)
		{
			c=szOriginText[i+EncryptIP[2][j]-1];
			szDestText[i+j]=szOriginText[i+EncryptIP[2][j]-1];
			//szDestText[i+EncryptIP[1][j]-1]=szOriginText[i+j];
		}
	}
	m_strInput=szDestText;
	m_strInput.TrimRight();
	UpdateData(FALSE);
	UpdateData();
}