crackpoddlg.cpp

富士FUJI触摸屏加密文件密码读取程序。 该程序实现对电脑上加密码文件的密码读取功能。测试文件为编程软件UG00S-CW-V4.0版本生成文件；3.2版本生成文件未测试

// CrackPODDlg.cpp : implementation file
//

#include "stdafx.h"
#include "CrackPOD.h"
#include "CrackPODDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CCrackPODDlg dialog

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

void CCrackPODDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCrackPODDlg)
	DDX_Control(pDX, IDC_LIST1, m_list);
	DDX_Text(pDX, IDC_EDIT3, m_pwd);
	DDX_Text(pDX, IDC_EDIT1, m_file);
	DDX_Text(pDX, IDC_EDIT2, m_encrypt);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCrackPODDlg, CDialog)
	//{{AFX_MSG_MAP(CCrackPODDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDOK2, OnOk)
	ON_BN_CLICKED(IDCANCEL2, OnCancel)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCrackPODDlg message handlers

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

void CCrackPODDlg::OnOk() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	if(GetPwd(m_file))	m_list.AddString("Successfully");
	else	m_list.AddString("Failed");

	m_list.AddString(".............");
}

void CCrackPODDlg::OnCancel() 
{
	OnCancel();	
}

void CCrackPODDlg::OnButton1() 
{
	m_list.AddString("Select file path and name");
	//CFileDialog fDlg(true);
	//fDlg.m_ofn.lpstrFilter= "*.U3|*.U3|*.*|*.*||";
	CFileDialog fDlg(true, "*.*", NULL, OFN_OVERWRITEPROMPT, "*.U3|*.U3|*.*|*.*||", this);
	
	fDlg.DoModal();
	m_file= fDlg.GetPathName();
	UpdateData(false);
}

BOOL CCrackPODDlg::GetPwd(CString fileName)
{
	if(fileName.IsEmpty()){
		AfxMessageBox("Error: The file name is invaild!");
		return FALSE;
	}
	m_list.AddString("Read file data");

	CFile file;

	if(!file.Open(fileName,CFile::modeRead))
	{
		AfxMessageBox("Error: The file name can't open!");
		return FALSE;
	}
	const BUFLEN= 10;
	BYTE buf[BUFLEN];
	int rn= file.Read(buf, BUFLEN);
	if(rn!= BUFLEN)	{
		AfxMessageBox("Error: Read file read failed!");
		return FALSE;
	}
	file.Close();

	CString str;
	str.Format("0x%x,0x%x,0x%x,0x%x,0x%x,0x%x", 
		buf[2],buf[3],buf[4],buf[5],buf[6],buf[7]);
	m_encrypt= str;

	m_list.AddString("Crack password");

	Decode2(buf+2, 6, (unsigned char*)(const char*)m_pwd);
	UpdateData(false);

	return TRUE;
}

BOOL CCrackPODDlg::Decode(char *buf, int len, char *pwd)
{
	if(buf==NULL){
		return FALSE;
	}
	

	for(int i=0; i<len; ++i){
		if(buf[i]==0x0) {
			pwd[i]=0x0;
			continue;
		}

		char diff, base; 
		if(buf[i]>=0x60 && buf[i]<=0x72)	{diff= (char)0x60;	base=0x30;}
		if(buf[i]>=0x82 && buf[i]<=0xb4)	{diff= (char)0x82;	base=0x41;}
		if(buf[i]>=0xc2 && buf[i]<=0xf4)	{diff= (char)0xc2;	base=0x61;}
		

		pwd[i]=(buf[i]-base)/2+base;
	}
	
	return TRUE;
}

BOOL CCrackPODDlg::Decode2(BYTE *buf, int len, BYTE *pwd)
{
	if(buf==NULL){
		return FALSE;
	}
	

	memset(pwd, 0, len+1);
	for(int i=0; i<len; ++i){
		if(buf[i]==0x0) {
			pwd[i]=0x0;
			continue;
		}
		pwd[i]=buf[i]/2;
	}
	return TRUE;
}