creatersakeydlg.cpp

rsa算法的c++实现,该程序实现rsa密钥对的生成.此密钥用来加密和解密

// CreateRSAKeyDlg.cpp : implementation file
//

#include "stdafx.h"
#include "CreateRSAKey.h"
#include "CreateRSAKeyDlg.h"
#include "rsakey.h"

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

/////////////////////////////////////////////////////////////////////////////
// CCreateRSAKeyDlg dialog

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

void CCreateRSAKeyDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCreateRSAKeyDlg)
	DDX_Text(pDX, IDC_EDIT1, m_savepubkey);
	DDX_Text(pDX, IDC_EDIT2, m_saveprvkey);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCreateRSAKeyDlg, CDialog)
	//{{AFX_MSG_MAP(CCreateRSAKeyDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SavePub, OnSavePub)
	ON_BN_CLICKED(IDC_SavePrv, OnSavePrv)
	ON_BN_CLICKED(IDC_CreateKey, OnCreateKey)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCreateRSAKeyDlg message handlers

BOOL CCreateRSAKeyDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 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
}

// 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 CCreateRSAKeyDlg::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 CCreateRSAKeyDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CCreateRSAKeyDlg::OnSavePub() 
{
	// TODO: Add your control notification handler code here
		UpdateData();
	CFileDialog fileDlg(false);
 	fileDlg.m_ofn.lpstrTitle="保存公钥";
 	fileDlg.m_ofn.lpstrFilter="Txt Files(*.txt)\0*.txt\0\0\0";
 	fileDlg.m_ofn.lpstrDefExt="txt";

    if(IDOK==fileDlg.DoModal())
	{
//		m_pub = fileDlg.GetPathName();
//		m_savepubkey = m_pub;
		m_savepubkey = fileDlg.GetPathName();
	}		
	UpdateData(false);
}

void CCreateRSAKeyDlg::OnSavePrv() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	CFileDialog fileDlg(false);
 	fileDlg.m_ofn.lpstrTitle="保存私钥";
 	fileDlg.m_ofn.lpstrFilter="txt Files(*.txt)\0*.txt\0\0\0";
 	fileDlg.m_ofn.lpstrDefExt="txt";

    if(IDOK==fileDlg.DoModal())
	{
		m_saveprvkey = fileDlg.GetPathName();
	}
	UpdateData(false);
}


void CCreateRSAKeyDlg::OnCreateKey() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	if(m_saveprvkey == "")
	//	m_saveprvkey = "prvkey.txt";
	{
		MessageBox("请输入保存私钥的路径");
		return;
	}
	if(m_savepubkey == "")
		//m_savepubkey = "pubkey.txt";
	{
		MessageBox("请输入保存公钥的路径");
		return;
	}
	int KEYLENGTH = 1024;
	initrand64_lt();
    initrandBBS_lt();
	RSAkey my_key (KEYLENGTH);
	RSApub my_public_key (my_key);
	
	fstream fout1 (m_saveprvkey,ios::out | ios::binary  );
	CString s("PRIK|");
	fout1.write(s, s.GetLength());
//	fout1 << my_key;
 //   fout1.close ();

	CString s1(my_key.keyvalue().p.lint2str(16));
	CString s2(my_key.keyvalue().q.lint2str(16));
	CString s3(my_key.keyvalue().pubexp.lint2str(16));
	CString s4(my_key.keyvalue().prvexp.lint2str(16));
	
	CString count1length("");	
	int count1 = s1.GetLength();
	count1length.Format("%d", count1);
	
	CString count2length("");	
	int count2 = s2.GetLength();
	count2length.Format("%d", count2);
	
	CString count3length("");	
	int count3 = s3.GetLength();
	count3length.Format("%d", count3);

	CString count4length("");	
	int count4 = s4.GetLength();
	count4length.Format("%d", count4);

	

	fout1.write(count1length, count1length.GetLength());
	fout1.write(count2length, count2length.GetLength());
	fout1.write(count3length, count3length.GetLength());
	fout1.write(count4length, count4length.GetLength());
	fout1.write(s1, count1);
	fout1.write(s2, count2);
	fout1.write(s3, count3);
	fout1.write(s4, count4);


	fout1.close ();


 
   fstream fout2 (m_savepubkey,ios::out | ios::binary );
    CString t("PUBK|");
	CString t1(my_public_key.keyvalue().pubexp.lint2str(16));
	CString t2(my_public_key.keyvalue().mod.lint2str(16));
	
	CString count5length("");	
	int count5 = t1.GetLength();
	count5length.Format("%d", count5);
	
	CString count6length("");	
	int count6 = t2.GetLength();
	count6length.Format("%d", count6);
	

	fout2.write(t, t.GetLength());
	fout2.write(count5length, count5length.GetLength());
	fout2.write(count6length, count6length.GetLength());
	fout2.write(t1, t1.GetLength());
	fout2.write(t2, t2.GetLength());
    fout2.close ();
    MessageBox("successful");

	UpdateData(false);
}