keydlg.cpp

通过miracl大数库生成rsa密钥

// keyDlg.cpp : implementation file
//

#include "stdafx.h"
#include "key.h"
#include "keyDlg.h"
#include <io.h>
//#include <fstream>
//using std::ifstream;
//using std::ofstream;

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#ifndef MR_STATIC
#ifndef MR_NOFULLWIDTH
	Miracl precision(100,0);
#else 
	Miracl precision(100,MAXBASE);
#endif
#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()

/////////////////////////////////////////////////////////////////////////////
// CKeyDlg dialog

CKeyDlg::CKeyDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CKeyDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CKeyDlg)
	m_e = _T("65537");
	m_d = _T("");
	m_n = _T("");
	m_key = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
#ifdef MR_STATIC
    miracl instance;
    mip = mirsys(&instance, MR_STATIC, 0);
#else
    mip = &precision;
#endif
}

void CKeyDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CKeyDlg)
	DDX_Text(pDX, IDC_E, m_e);
	DDX_Text(pDX, IDC_D, m_d);
	DDX_Text(pDX, IDC_N, m_n);
	DDX_Text(pDX, IDC_Key, m_key);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CKeyDlg, CDialog)
	//{{AFX_MSG_MAP(CKeyDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_RAND, OnRand)
	ON_BN_CLICKED(IDC_CHANGE, OnChange)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CKeyDlg message handlers

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

void CKeyDlg::OnRand() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	Big p, q, e, n, phi, d;

	time_t seed;
	time(&seed);
	irand((long)seed);		/* change parameter for different values */

	char tempStr[400];
	strcpy(tempStr, (LPCSTR)m_e);
	e = tempStr;

	mip->IOBASE = 10;
	for(;;)
    {
        p = rand(512, 2);        // random 512 bit number
        if (p%2 == 0)	p += 1;
        while (!prime(p))	p += 2;

        q = rand(512, 2);
        if (q%2 == 0)	q += 1;
        while (!prime(q))	q += 2;

        n = p * q;

        phi = (p - 1) * (q - 1);
        if(gcd(e, phi) != 1) continue;
		d = inverse(e, phi);
        break;
    }

	operator<<(tempStr, n);
	m_n.Format("%s", tempStr);

	operator<<(tempStr, d);
	m_d.Format("%s", tempStr);

	UpdateData(false);
	
}

void CKeyDlg::OnChange() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	char *primetext=
"155315526351482395991155996351231807220169644828378937433223838972232518351958838087073321845624756550146945246003790108045940383194773439496051917019892370102341378990113959561895891019716873290512815434724157588460613638202017020672756091067223336194394910765309830876066246480156617492164140095427773547319";

	Big a,b,p,pa,pb,key;
	p=primetext;
	char tempStr[400];
	a=rand(160,2);
	pa=pow(3,a,p);
	b=rand(160,2);
    pb=pow(3,b,p);
	key=pow(pb,a,p);   
	operator<<(tempStr, key);
	m_key.Format("%s", tempStr);
	UpdateData(false);
}