elgamaltooldlg.cpp

这个程序是网络信息安全概论课的课程实践,自己动手编写一个具于1024位大数 运算的ELGamal加密系统。 ELGamal 依赖大数运算

// ELGamaltoolDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ELGamaltool.h"
#include "ELGamaltoolDlg.h"
#include "BigInt.h"
#include "CCommon.h"
#include "ELGmaltest1.h"
#include "HELPDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CELGamaltoolDlg dialog

CELGamaltoolDlg::CELGamaltoolDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CELGamaltoolDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CELGamaltoolDlg)
	m_publicB = _T("");
	m_publicg = _T("");
	m_publicp = _T("");
	m_privateb = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	ready = 0;
}

void CELGamaltoolDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CELGamaltoolDlg)
	DDX_Control(pDX, IDC_PROGRESS1, m_progress);
	DDX_Text(pDX, IDC_EDITB, m_publicB);
	DDX_Text(pDX, IDC_EDITg, m_publicg);
	DDX_Text(pDX, IDC_EDITp, m_publicp);
	DDX_Text(pDX, IDC_EDITpb, m_privateb);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CELGamaltoolDlg, CDialog)
	//{{AFX_MSG_MAP(CELGamaltoolDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTtest, OnBUTtest)
	ON_BN_CLICKED(IDC_BUTgenerate, OnBUTgenerate)
	ON_BN_CLICKED(IDC_BUTTONHELP, OnButtonhelp)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CELGamaltoolDlg message handlers

BOOL CELGamaltoolDlg::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 CELGamaltoolDlg::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 CELGamaltoolDlg::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 CELGamaltoolDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CELGamaltoolDlg::OnBUTtest() 
{
	// TODO: Add your control notification handler code here
   CELGmaltest dlg;
	if(IDOK!=dlg.DoModal())
		return ;
 
   
/*	if(pDlg==NULL) 

{ 


pDlg=new CELGmaltest(this);
// this 为 指向 CMainFrame 对象的指针 

pDlg->Create(IDD_ELGmaltest) ;

} 

pDlg->ShowWindow(SW_SHOW) ;

 
*/

}
UINT mmyproc(LPVOID p)
{ 
	CProgressCtrl *pw;
	 pw=(CProgressCtrl*)p;
	int i;
	//这里可以进行费时的操作，同时显示进度

	for(i=0;i<1000;i++)
	{
		pw->SetPos(i);
		::Sleep(5);
	}
   //UpdateData(FALSE);	
	return 0;
} 

void CELGamaltoolDlg::OnBUTgenerate() 
{
	// TODO: Add your control notification handler code here
	

    // TODO: Add your control notification handler code here
   //显示等待光标
   AfxBeginThread(mmyproc,&m_progress);
   CString caption;
   AfxGetMainWnd( )->GetWindowText(caption);
   AfxGetApp()->BeginWaitCursor();
   AfxGetMainWnd( )->SetWindowText("正在生成随机密钥!请等待...");

	CTime t0=CTime::GetCurrentTime();
	m_publicp = _T("");
    p.Mov(0);
	p.GetPrime(32);
	p.Put(m_publicp);
    
    g.Mov(0);
    g.GetPrime(6);
    g.Put(m_publicg);


	b.Mov(0);
	b.GetPrime(6);
	b.Put(m_privateb);

	B.Mov(0);
	B.Mov(g.RsaTrans(b,p));
	B.Put(m_publicB);

    a.Mov(0);
	a.GetPrime(6);
    
	A.Mov(0);
	A.Mov(g.RsaTrans(a,p));
    
	ready=1;
	CDialog::UpdateData(FALSE);

    // 结束等待光标
    AfxGetApp()->EndWaitCursor();
	AfxGetMainWnd( )->SetWindowText(caption); 
	CTime t1=CTime::GetCurrentTime();
	CTimeSpan t=t1-t0;
	CString s_time;
	s_time.Format("%d",t.GetTotalSeconds());
	s_time+="秒";
	MessageBox(s_time,"生成随机密钥所用时间",MB_OK);



}

void CELGamaltoolDlg::OnButtonhelp() 
{
	// TODO: Add your control notification handler code here
    CHELPDlg m_pDlg;
	if(IDOK!=m_pDlg.DoModal())
		 return;
	
}