column_permutation.cpp

列置换加密

// Column_permutation.cpp : implementation file
//

#include "stdafx.h"
#include "cryptology.h"
#include "Column_permutation.h"
#include "colum_permu.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
char text[N];
char key[N];
/////////////////////////////////////////////////////////////////////////////
// CColumn_permutation property page

IMPLEMENT_DYNCREATE(CColumn_permutation, CPropertyPage)

CColumn_permutation::CColumn_permutation() : CPropertyPage(CColumn_permutation::IDD)
{
	//{{AFX_DATA_INIT(CColumn_permutation)
	m_ciphertext = _T("");
	m_key = _T("");
	m_plaintext = _T("");
	//}}AFX_DATA_INIT
}

CColumn_permutation::~CColumn_permutation()
{
}

void CColumn_permutation::DoDataExchange(CDataExchange* pDX)
{
	CPropertyPage::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CColumn_permutation)
	DDX_Text(pDX, IDC_CIPHERTEXT, m_ciphertext);
	DDX_Text(pDX, IDC_KEY, m_key);
	DDX_Text(pDX, IDC_PLAINTEXT, m_plaintext);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CColumn_permutation, CPropertyPage)
	//{{AFX_MSG_MAP(CColumn_permutation)
	ON_BN_CLICKED(IDC_ENCRY, OnEncry)
	ON_BN_CLICKED(IDC_DECRY, OnDecry)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CColumn_permutation message handlers

void CColumn_permutation::OnEncry() 
{
	UpdateData();
	Column cp;
	int len,lens,i;
	len=m_plaintext.GetLength();
	lens=m_key.GetLength();
	for(i=0;i<len;i++){
  text[i]=m_plaintext[i];
 }

		for(i=0;i<lens;i++){
  key[i]=m_key[i];
 }
	//cout<<"input the key:";
	//cin>>key;
	//cout<<"input the plaintext:";
	//cin>>text;
	cp.encipher(key,text);
	m_ciphertext.Format("%s",text);
	
	//cout<<"cipertext:";
	//cp.text_print();
	//cp.decipher(key,text);
	//cout<<"plaintext:";
	//cp.text_print();
    UpdateData(false);
		if(MessageBox("是否保存密文？",NULL,MB_OKCANCEL)==IDOK)
	{
		SaveFile();
	}	
}

void CColumn_permutation::OnDecry() 
{
UpdateData();
  	Column cp;
	int len,lens,i;
	len=m_plaintext.GetLength();
	lens=m_key.GetLength();


		for(i=0;i<lens;i++){
  key[i]=m_key[i];
 }
	//cout<<"input the key:";
	//cin>>key;
	//cout<<"input the plaintext:";
	//cin>>text;
	//cp.encipher(key,text);
	//m_ciphertext.Format("%s",text);
	//cout<<"cipertext:";
	//cp.text_print();
	cp.decipher(key,text);
    m_plaintext.Format("%s",text);
	//cout<<"plaintext:";
	//cp.text_print();
  UpdateData(false);	
}

void CColumn_permutation::SaveFile()
{
   CFileDialog dlg(false);
	if(dlg.DoModal()==IDOK)
	{
		m_filename=dlg.GetPathName();
		int len=m_filename.GetLength();
		char *filename=new char[len];
		filename=m_filename.GetBuffer(len);
		m_file.Open(filename,CFile::modeWrite |CFile::modeCreate);
		
		len=m_ciphertext.GetLength();
		char *buf=new char[len];
		
		buf=m_ciphertext.GetBuffer(len);
		
		m_file.Write(buf,len);
		
		m_file.Close();
	}
}