dmcrackerdlg.cpp

一个针对DreamMail的密码加密算法的分析以及相应的破解过程

// DMCrackerDlg.cpp : implementation file
//

#include "stdafx.h"
#include "DMCracker.h"
#include "DMCrackerDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CDMCrackerDlg dialog

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

void CDMCrackerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDMCrackerDlg)
	DDX_Text(pDX, IDC_MIWEN, m_miwen);
	DDX_Text(pDX, IDC_MINGWEN, m_mingwen);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDMCrackerDlg, CDialog)
	//{{AFX_MSG_MAP(CDMCrackerDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDMCrackerDlg message handlers

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

void CDMCrackerDlg::OnOK() 
{
	char zhengli[100];
	memset(zhengli, 0x0, sizeof(char)*100);
	int miwen[100];
	memset(miwen, 0x0, sizeof(int)*100);
	char str[] = "RapidMail_made_by_ZXQSQH";
	char mingwen[100];
	memset(mingwen, 0x0, sizeof(char)*100);
	
	GetDlgItem(IDC_MIWEN)->GetWindowText(m_miwen);
	if(m_miwen.IsEmpty())
	{
		MessageBox("密文不能为空!请输入密文!");
	}
	sprintf(zhengli, "%s", m_miwen);
	int i=0;
	while(zhengli[i]!=0)
	{
		char ch = zhengli[i];
		if((ch>='0')&&(ch<='9'))
			miwen[i] = ch-'0';
		else if((ch>='A')&&(ch<='F'))
			miwen[i] = ch-'A'+0xA;
		else
			MessageBox("输入的内容中有无效字符，请区分大小写!");
		i++;
	}
	int n = i;
	int k = 0;
	int temp;
	while(i>=0)
	{
		miwen[n-i] = miwen[n-i]*16+miwen[n-i+1];
		i = i-2;
	}
	for(int j = 0;j<n;)
	{
		k = k%24;
		temp = miwen[j+2]^str[k];
		if(temp<miwen[j])
			temp = temp+0xFF;
		temp = temp-miwen[j];
		mingwen[k] = temp;
		k++;
		j = j+2;
	}
	n = n/2-1;
	mingwen[n] = '\0';
	//m_mingwen = miwen;
	GetDlgItem(IDC_MINGWEN)->SetWindowText(mingwen);

	
	//CDialog::OnOK();
}