fdigestdlg.cpp

MD5/SHA-1摘要生成算法

// FDigestDlg.cpp : implementation file
//

#include "stdafx.h"
#include "FDigest.h"
#include "FDigestDlg.h"
#include "sub_md5.h"
#include "sub_sha1.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()

/////////////////////////////////////////////////////////////////////////////
// CFDigestDlg dialog

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

void CFDigestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CFDigestDlg)
	DDX_Control(pDX, IDC_COMBO, m_algo);
	DDX_Text(pDX, IDC_EDIT1, m_str);
	DDX_Text(pDX, IDC_INFO, m_info);
	DDX_Text(pDX, IDC_RESULT, m_result);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CFDigestDlg, CDialog)
	//{{AFX_MSG_MAP(CFDigestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_CALC, OnCalc)
	ON_CBN_SELCHANGE(IDC_COMBO, OnSelchangeCombo)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFDigestDlg message handlers

BOOL CFDigestDlg::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
	m_algo.SetCurSel(0);
	m_info.Format("报文摘要算法，产生128位的密钥");
	UpdateData(false);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CFDigestDlg::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 CFDigestDlg::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 CFDigestDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CFDigestDlg::OnCalc() 
{
	UpdateData();

	CString string=m_str;
	unsigned int len = string.GetLength();
	unsigned char *pstr=(unsigned char *)string.GetBuffer(300);

	int	sel=m_algo.GetCurSel();

	if(sel==0)
	{
		MD5_CTX context;
		BYTE md5_digest[16];

		MD5Init (&context);
		MD5Update (&context, pstr, len);
		MD5Final (md5_digest, &context);

		char buf[33];
		buf[32]=0;
		for(int i=0;i<16;i++)
			sprintf(&buf[i*2],"%02X",md5_digest[i]);
		m_result.Format("%s",buf);
		UpdateData(false);
	}else if(sel==1)
	{
		BYTE sha_digest[20];

		SHA_1(sha_digest,pstr,len);
		char buf[41];
		buf[40]=0;
		for(int i=0;i<20;i++)
			sprintf(&buf[i*2],"%02X",sha_digest[i]);
		m_result.Format("%s",buf);
		UpdateData(false);
	}
}

void CFDigestDlg::OnSelchangeCombo() 
{
	UpdateData();
	char information[][100]=
	{
		"报文摘要算法，产生128位的散列值",
		"报文摘要算法，产生160位的散列值",
	};

	int	sel=m_algo.GetCurSel();
	m_info.Format(information[sel]);
	UpdateData(false);
}