VC++中实现DES和RSA加密时候用到的源程序
源代码在线查看： rsa加解密算法dlg.cpp
// RSA加解密算法Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "RSA加解密算法.h"
#include "RSA加解密算法Dlg.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()
/////////////////////////////////////////////////////////////////////////////
// CRSADlg dialog
CRSADlg::CRSADlg(CWnd* pParent /*=NULL*/)
: CDialog(CRSADlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CRSADlg)
m_D = _T("");
m_E = _T("");
m_IN = _T("");
m_N = _T("");
m_OUT = _T("");
m_Len=0;
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CRSADlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CRSADlg)
DDX_Text(pDX, IDC_D, m_D);
DDX_Text(pDX, IDC_E, m_E);
DDX_Text(pDX, IDC_INPUT, m_IN);
DDX_Text(pDX, IDC_N, m_N);
DDX_Text(pDX, IDC_OUTPUT, m_OUT);
DDX_CBIndex(pDX, IDC_COMBO, m_Len);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CRSADlg, CDialog)
//{{AFX_MSG_MAP(CRSADlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_PUT, OnButtonPut)
ON_BN_CLICKED(IDC_GET, OnButtonGet)
ON_BN_CLICKED(IDC_DECRYPT, OnDecrypt)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CRSADlg message handlers
BOOL CRSADlg::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 CRSADlg::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 CRSADlg::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 CRSADlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CRSADlg::OnButtonPut()
{
UpdateData(TRUE);
ready=0;
if(m_N.GetLength()>256)
{
m_OUT=_T("N不得大于256位");
UpdateData(FALSE);
return;
}
if(m_E.GetLength()>256)
{
m_OUT=_T("E不得大于256位");
UpdateData(FALSE);
return;
}
if(m_D.GetLength()>10)
{
m_OUT=_T("N不得大于10位");
UpdateData(FALSE);
return;
}
for(int i=0;i {
if((m_N[i] ((m_N[i]>'9')&&(m_N[i] ((m_N[i]>'F')&&(m_N[i] (m_N[i]>'f'))
{
m_OUT=_T("N必须为0-9或A-F或a-f组成的整数");
UpdateData(FALSE);
return;
}
}
for(i=0;i {
if((m_E[i] ((m_E[i]>'9')&&(m_E[i] ((m_E[i]>'F')&&(m_E[i] (m_E[i]>'f'))
{
m_OUT=_T("E必须为0-9或A-F或a-f组成的整数");
UpdateData(FALSE);
return;
}
}
for(i=0;i {
if((m_D[i] ((m_D[i]>'9')&&(m_D[i] ((m_D[i]>'F')&&(m_D[i] (m_D[i]>'f'))
{
m_OUT=_T("D必须为0-9或A-F或a-f组成的整数");
UpdateData(FALSE);
return;
}
}
N.Get(m_N);
D.Get(m_D);
E.Get(m_E);
if((N.Cmp(E) {
m_OUT=_T("N必须大于D、E");
UpdateData(FALSE);
return;
}
ready=1;
Q.m_ulValue[0]=0;
}
void CRSADlg::OnButtonGet()
{
ready=1;
UpdateData(TRUE);
int len=2;
for(int i=0;i CTime t0=CTime::GetCurrentTime();
P.Mov(0);
Q.Mov(0);
N.Mov(0);
E.Mov(0);
P.GetPrime(16);
Q.GetPrime(16);
N.Mov(P.Mul(Q));
N.Put(m_N);
P.m_ulValue[0]--;
Q.m_ulValue[0]--;
P.Mov(P.Mul(Q));
D.Mov(0x10001);
m_D="10001";
E.Mov(D.Euc(P));
E.Put(m_E);
CTime t1=CTime::GetCurrentTime();
CTimeSpan t=t1-t0;
m_OUT.Format("%d",t.GetTotalSeconds());
m_OUT+=" 秒";
Q.m_ulValue[0]=0;
UpdateData(FALSE);// TODO: Add your control notification handler code here
}
void CRSADlg::OnOK()
{ if(ready==0)
{
m_OUT=_T("请先输入或生成N、D、E");
UpdateData(FALSE);
return;
}
UpdateData(TRUE);
if(m_IN.GetLength()>256)
{
m_OUT=_T("N不得大于256位");
UpdateData(FALSE);
return;
}
for(int i=0;i {
if((m_IN[i] ((m_IN[i]>'9')&&(m_IN[i] ((m_IN[i]>'F')&&(m_IN[i] (m_IN[i]>'f'))
{
m_OUT=_T("待加密数据必须为0-9或A-F或a-f组成的整数");
UpdateData(FALSE);
return;
}
}
P.Get(m_IN);
if(P.Cmp(N)>=0)
{
m_OUT=_T("待加密数据必须小于N");
UpdateData(FALSE);
return;
}
Q.Mov(P.RsaTrans(E,N));
Q.Put(m_OUT);
UpdateData(FALSE);
}
void CRSADlg::OnDecrypt()
{
if((ready==0)||(Q.m_ulValue[0]==0))
{
m_OUT=_T("请先进行加密");
UpdateData(FALSE);
return;
}
Q.Get(m_OUT);
P.Mov(Q.RsaTrans(D,N));
P.Put(m_OUT);
UpdateData(FALSE);// TODO: Add your control notification handler code here
}
