hillmimadlg.cpp

这是一个基于HILL密码的加密解密程序 能实现文本信息的加密(密钥可自行设定是一二阶矩阵)

// hillmimaDlg.cpp : implementation file
//

#include "stdafx.h"
#include "hillmima.h"
#include "hillmimaDlg.h"
#include "_hill.h"

/*#include "math.h"*/
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
int Miyao[4]={1,1,1,2};
int m=256;
BOOL flag=TRUE;
// CString alpha="abcdefghijklmnopqrstuvwxyz";
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CHillmimaDlg dialog

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

void CHillmimaDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CHillmimaDlg)
	DDX_Control(pDX, IDC_EDIT1, m_mingwen);
	DDX_Text(pDX, IDC_EDIT1, m_str);
	DDX_Text(pDX, IDC_EDIT2, m_miwen);
	DDX_Text(pDX, IDC_EDIT3, m_jiemi);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CHillmimaDlg, CDialog)
	//{{AFX_MSG_MAP(CHillmimaDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnBtnHilldlg)
	ON_BN_CLICKED(IDC_BUTTON3, Onjiemi)
	ON_BN_CLICKED(IDC_BUTTON4, OnButton4)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHillmimaDlg message handlers

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

void CHillmimaDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here

	int i,j;
	CString miwen,s;
	m_mingwen.GetWindowText(m_str);
// 
	s=m_str;
	if (strlen(s)%2==1)
	{s=s+' ';
	flag=FALSE;
	}
	
	for (i=0;i<strlen(s);i=i+2)
	{	j=(s[i] * Miyao[0]+s[i+1] * Miyao[2]) % m;
	miwen=miwen+char(j);
	j=(s[i]*Miyao[1]+s[i+1]*Miyao[3])%m;
		miwen=miwen+char(j);
	}

	m_miwen=miwen;
	UpdateData(FALSE);

}

void CHillmimaDlg::OnBtnHilldlg() 
{
	// TODO: Add your control notification handler code here
	C_hill chill;
	chill.DoModal();
	
}

void CHillmimaDlg::Onjiemi() 
{
	// TODO: Add your control notification handler code here
	int miyao_inv[4];
	int i,j;
	CString miwen;
	miyao_inv[0]=Miyao[3]%m;
	miyao_inv[3]=Miyao[0]%m;
    miyao_inv[1]=(-Miyao[1])%m;
	miyao_inv[2]=(-Miyao[2])%m;
	
	// AfxMessageBox(m_miwen);
	
	for (i=0;i<strlen(m_miwen);i=i+2)
	{	j=(m_miwen[i]*miyao_inv[0]+m_miwen[i+1]*miyao_inv[2])%m;
	miwen=miwen+char(j);
	j=(m_miwen[i]*miyao_inv[1]+m_miwen[i+1]*miyao_inv[3])%m;
	miwen=miwen+char(j);
	}
	// AfxMessageBox(miwen);
// 	if (flag)
// 	{
// 		m_jiemi=miwen;
// 	}
// 	else
// 	{
// 	m_jiemi=miwen.Left(strlen(miwen)-1);
// 	}
	m_jiemi=miwen;
	UpdateData(FALSE);
}

void CHillmimaDlg::OnButton4() 
{
	// TODO: Add your control notification handler code here
	C_hill chill1;
	chill1.DoModal();
}