aes_workdlg.cpp

用VC做的AES加密文件的程序,不限文件大小,有界面

// aes_workDlg.cpp : implementation file
//

#include "stdafx.h"
#include "aes_work.h"
#include "aes_workDlg.h"
#include "aes.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAes_workDlg dialog

CAes_workDlg::CAes_workDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CAes_workDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CAes_workDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CAes_workDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAes_workDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAes_workDlg, CDialog)
	//{{AFX_MSG_MAP(CAes_workDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAes_workDlg message handlers

BOOL CAes_workDlg::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
	
	// 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 CAes_workDlg::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 CAes_workDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CAes_workDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	CFileDialog f(TRUE);
	if(IDOK==f.DoModal())
	{
		CString s;
		s=f.GetPathName();
		SetDlgItemText(IDC_EDIT1, s);

	}
}


void CAes_workDlg::OnButton2() 
{
	GetDlgItem(IDC_BUTTON2)->EnableWindow(FALSE);
	GetDlgItem(IDC_BUTTON3)->EnableWindow(FALSE);
    CString s;
	CString k;
    GetDlgItemText(IDC_EDIT1, s);
	GetDlgItemText(IDC_EDIT2, k);
	CString ss = s+'m';
	FILE * fp = fopen(s,"rb");
	FILE * fp1 = fopen(ss,"wb");
	if(fp&&fp1)
	{

		char buf[16];
		char bufout[16];
		int buflen;
		CAes oAes;
		oAes.MakeKey(k, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16, 16);
		long nLoseChar;
		char sTemp[17];
		while(buflen = fread(buf,1,16,fp))
		{
			//
			nLoseChar=buflen%16;
			
			if(buflen-nLoseChar>0)
				oAes.Encrypt(buf,bufout,buflen-nLoseChar);
			if(nLoseChar==0)
			{
				fwrite(bufout,16,1,fp1);
				continue;
			}

			memset(sTemp,0,17);
			memcpy(sTemp,buf+buflen-nLoseChar,nLoseChar);
			oAes.Encrypt(sTemp,bufout+buflen-nLoseChar,16);
			fwrite(bufout,16,1,fp1);	
		}
		fclose(fp);
		fclose(fp1);
	}
	GetDlgItem(IDC_BUTTON2)->EnableWindow(TRUE);
	GetDlgItem(IDC_BUTTON3)->EnableWindow(TRUE);

}

void CAes_workDlg::OnButton3() 
{
	// TODO: Add your control notification handler code here
	GetDlgItem(IDC_BUTTON2)->EnableWindow(FALSE);
	GetDlgItem(IDC_BUTTON3)->EnableWindow(FALSE);
	CString s;
	CString k;
    GetDlgItemText(IDC_EDIT1, s);
	GetDlgItemText(IDC_EDIT2, k);
	CString ss = s+'p';
	FILE * fp = fopen(s,"rb");
	FILE * fp1 = fopen(ss,"wb");
	if(fp&&fp1)
	{

		char buf[16];
		char bufout[16];
		int buflen;
		CAes oAes;
		oAes.MakeKey(k, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16, 16);
		
		while(buflen = fread(buf,1,16,fp))
		{
			oAes.Decrypt(buf,bufout,buflen);
			fwrite(bufout,16,1,fp1);
		}
	}
	fclose(fp);
	fclose(fp1);
	GetDlgItem(IDC_BUTTON2)->EnableWindow(TRUE);
	GetDlgItem(IDC_BUTTON3)->EnableWindow(TRUE);

}