myrsadlg.cpp

在VC环境下编写的,利用RSA进行数字签名算法

// MyRsaDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MyRsa.h"
#include "MyRsaDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyRsaDlg dialog

CMyRsaDlg::CMyRsaDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMyRsaDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMyRsaDlg)
	m_p = _T("");
	m_q = _T("");
	m_d = _T("");
	m_e = _T("");
	m_n = _T("");
	m_ming = _T("");
	m_mi = _T("");
	m_jiemi = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMyRsaDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMyRsaDlg)
	DDX_Text(pDX, IDC_Ecode, m_p);
	DDX_Text(pDX, IDC_EKey, m_q);
	DDX_Text(pDX, IDC_Em, m_d);
	DDX_Text(pDX, IDC_E_e, m_e);
	DDX_Text(pDX, IDC_E_e2, m_n);
	DDX_Text(pDX, IDC_mingwen, m_ming);
	DDV_MaxChars(pDX, m_ming, 56);
	DDX_Text(pDX, IDC_miwen, m_mi);
	DDX_Text(pDX, IDC_jiemi, m_jiemi);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMyRsaDlg, CDialog)
	//{{AFX_MSG_MAP(CMyRsaDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_GetKey, OnGetKey)
	ON_BN_CLICKED(IDC_Crypt, OnCrypt)
	ON_BN_CLICKED(IDC_DeCrypt, OnDeCrypt)
	ON_EN_CHANGE(IDC_Ecode, OnChangeEcode)
	ON_EN_CHANGE(IDC_EKey, OnChangeEKey)
	ON_EN_CHANGE(IDC_Em, OnChangeEm)
	ON_EN_CHANGE(IDC_E_e2, OnChangeEe2)
	ON_EN_CHANGE(IDC_E_e, OnChangeEe)
	ON_EN_CHANGE(IDC_miwen, OnChangemiwen)
	ON_EN_CHANGE(IDC_mingwen, OnChangemingwen)
	ON_EN_CHANGE(IDC_jiemi, OnChangejiemi)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyRsaDlg message handlers

BOOL CMyRsaDlg::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
	m_ming="海上升明月,天涯若比邻";
	UpdateData(FALSE);
	// 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 CMyRsaDlg::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 CMyRsaDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMyRsaDlg::OnGetKey() 
{
int		m_plen=60;
int		m_qlen=60;
int		m_elen=120;
BI.GetPrime(p,m_plen);
BI.GetPrime(q,m_qlen);
rsa.GetKey(p,q,e,d,n,0,0,m_elen);
CGfL::HalfByteToStr(buf,p.bit,p.len);
m_p = buf;
CGfL::HalfByteToStr(buf,q.bit,q.len);
m_q = buf;
CGfL::HalfByteToStr(buf,e.bit,e.len);
m_e = buf;
CGfL::HalfByteToStr(buf,n.bit,n.len);
m_n = buf;
CGfL::HalfByteToStr(buf,d.bit,d.len);
m_d = buf;
UpdateData(FALSE);
}

void CMyRsaDlg::OnCrypt() 
{
if(m_ming=="")return;
char dat[BI_MAXLEN];
memset(dat,0,BI_MAXLEN);
rsa.Encrypt(dat,m_ming.GetBuffer(0),m_ming.GetLength(),
			m_e.GetBuffer(0),m_n.GetBuffer(0));	
m_mi=dat;
UpdateData(FALSE);
//m_jiemi.Format("%d",m_mi.GetLength());
//AfxMessageBox(m_jiemi);
}

void CMyRsaDlg::OnDeCrypt() 
{
if(m_mi=="")return;
m_jiemi.GetBufferSetLength(BI_MAXLEN+1);
memset(m_jiemi.GetBuffer(0),0,BI_MAXLEN+1);
rsa.Encrypt(m_jiemi.GetBuffer(0),m_mi.GetBuffer(0),m_mi.GetLength(),
			m_d.GetBuffer(0),m_n.GetBuffer(0));	
UpdateData(FALSE);

}

void CMyRsaDlg::OnChangeEcode() 
{
UpdateData();
}

void CMyRsaDlg::OnChangeEKey() 
{
UpdateData();
}

void CMyRsaDlg::OnChangeEm() 
{
UpdateData();
}

void CMyRsaDlg::OnChangeEe2() 
{
UpdateData();
}

void CMyRsaDlg::OnChangeEe() 
{
UpdateData();
}

void CMyRsaDlg::OnChangemiwen() 
{
UpdateData();
}

void CMyRsaDlg::OnChangemingwen() 
{
UpdateData();
}

void CMyRsaDlg::OnChangejiemi() 
{
UpdateData();
}