desdec.cpp

.net2003下写的多种加密加密算法的演示

// DesDialog.cpp : 实现文件
//

#include "stdafx.h"
#include "LmCrypt.h"
#include "Desdec.h"
#include ".\desdialog.h"


// CDesDialog 对话框

IMPLEMENT_DYNAMIC(CDesDialog, CDialog)
CDesDialog::CDesDialog(CWnd* pParent /*=NULL*/)
	: CDialog(CDesDialog::IDD, pParent)
	, str_input(_T(""))
{
}

CDesDialog::~CDesDialog()
{
}

void CDesDialog::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Text(pDX, IDC_EDIT, str_input);
	DDV_MaxChars(pDX, str_input, 8);
}


BEGIN_MESSAGE_MAP(CDesDialog, CDialog)
	ON_BN_CLICKED(IDOK, OnBnClickedOk)
	ON_EN_CHANGE(IDC_EDIT, OnEnChangeEdit)
END_MESSAGE_MAP()


// CDesDialog 消息处理程序

BOOL CDesDialog::OnInitDialog()
{
	CDialog::OnInitDialog();

		CDocManager * p_docm=::AfxGetApp()->m_pDocManager;

	   //p_docm->
	   //::AfxGetMainWnd()->get
	
	POSITION pos= ::AfxGetApp()->GetFirstDocTemplatePosition(); 
	 CDocTemplate *pTemplate = ::AfxGetApp()->GetNextDocTemplate(pos);
	 POSITION pos_doc;
     CDocument* m_doc;
	 int i_doccount=p_docm->GetOpenDocumentCount();
	pos_doc=pTemplate->GetFirstDocPosition();
	for(int j=0;j<i_doccount;j++){
	m_doc=pTemplate->GetNextDoc(pos_doc);
	m_docdecls[j]=m_doc;
	
	CListBox * p_listdoc=(CListBox *)GetDlgItem(IDC_LIST_DOC);
		p_listdoc->AddString(m_doc->GetTitle());


		//s_doc=pTemplate->GetNextDoc();
	}
	CEdit * p_edit=(CEdit *)this->GetDlgItem(IDC_EDIT);
	p_edit->SetWindowText("abcdefgk");
	return TRUE;  // return TRUE unless you set the focus to a control
	// 异常: OCX 属性页应返回 FALSE
}

void CDesDialog::OnBnClickedOk()
{

	Encyp();
	OnOK();
}


int CDesDialog::Encyp(void)
{
	
	//str_input="abcdefgh";
	str_key.MakeLower();
	for(int i=0;i<9;i++)
	{
		key[i]=str_key.GetAt(i);
	}
	CDocument* m_subdoc=m_docdecls[0];
	
		CString str_path=m_subdoc->GetPathName();
	//	CString str_dir;
	//			int nBytes = ::GetCurrentDirectory (0, NULL);
	//char *szDir = new char [nBytes + 1];
	//::GetCurrentDirectory (nBytes + 1, szDir);
	//str_dir = szDir;
	//CString str_filename=m_subdoc->GetTitle();
	//str_filename=str_filename+"enc.txt";
	//str_dir=str_dir+"/enc/"+str_filename;
	int ii=str_path.ReverseFind('.');

	CString str_newfile=str_path.Left(ii);
	str_newfile=str_newfile+"enc.txt";


	CFile f_cur,f_enc;
	CFileException ex;
   // open the source file for reading

   if (!f_cur.Open(str_path,
      CFile::modeRead | CFile::shareDenyWrite, &ex))
   {
      // complain if an error happened
      // no need to delete the ex object
      TCHAR szError[1024];
      ex.GetErrorMessage(szError, 1024);
     // cout << "Couldn't open source file: ";
      //cout << szError;
     
   }

   if (!f_enc.Open(str_newfile,
	   CFile::modeCreate|CFile::modeWrite , &ex))
   {
      // complain if an error happened
      // no need to delete the ex object
      TCHAR szError[1024];
      ex.GetErrorMessage(szError, 1024);
     // cout << "Couldn't open source file: ";
      //cout << szError;
     
   }
   

	ULONGLONG l_leng=f_cur.GetLength();
	 unsigned char buf[1024];
	unsigned char* pbuf;
	CString str_in;
	CLmDes des;
	UINT n;
	//for(ULONGLONG i=0;i<l_leng/8+1;i++)
	//{
	n=f_cur.Read(buf,l_leng);
	
	 pbuf=buf;
	
	pbuf=des.yencrypt(key,pbuf,n);
	//buf[0]=GetSub(buf[0]);
	for(int i=0;i<n;i++)
	{
		buf[i]=*(pbuf+i);

	}

	f_enc.Write(buf,n);


	//}
	return 1;
}


void CDesDialog::OnEnChangeEdit()
{
	// TODO:  如果该控件是 RICHEDIT 控件，则它将不会
	// 发送该通知，除非重写 CDialog::OnInitDialog()
	// 函数并调用 CRichEditCtrl().SetEventMask()，
	// 同时将 ENM_CHANGE 标志“或”运算到掩码中。
	UpdateData();
	str_key=str_input;
	UpdateData();
	// TODO:  在此添加控件通知处理程序代码
}