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📄 des 加解密算法dlg.cpp

📁 DES算法说明。包括加密算法和解密算法。
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// DES 加解密算法Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "DES 加解密算法.h"
#include "DES 加解密算法Dlg.h"
#include "math.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()

/////////////////////////////////////////////////////////////////////////////
// CDESDlg dialog

CDESDlg::CDESDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDESDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDESDlg)
	m_MINGWEN = _T("");
	m_MIYAO = _T("");
	m_MEWEN = _T("");
	m_YUANWEN = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDESDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDESDlg)
	DDX_Text(pDX, IDC_EDIT1, m_MINGWEN);
	DDX_Text(pDX, IDC_EDIT2, m_MIYAO);
	DDX_Text(pDX, IDC_EDIT3, m_MEWEN);
	DDX_Text(pDX, IDC_EDIT4, m_YUANWEN);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDESDlg, CDialog)
	//{{AFX_MSG_MAP(CDESDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnJmButton)
	ON_BN_CLICKED(IDC_BUTTON2, OnJiemiButton)
	ON_BN_CLICKED(IDCANCEL, OnTchbutton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDESDlg message handlers

BOOL CDESDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
		m_MINGWEN="tsinghua";
	m_MIYAO="computer";
	UpdateData(false);
	// 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 CDESDlg::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 CDESDlg::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 CDESDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CDESDlg::DESJIEMI()
{
  int t2[65],RE1[49],f[33],frk[33];
  int L1[33],R1[33],L2[33],R2[33],L3[33],R3[33],L4[33],R4[33],L5[33],R5[33],L6[33],R6[33],L7[33],R7[33],L8[33],R8[33],L9[33],R9[33],L10[33],R10[33],L11[33],R11[33],L12[33],R12[33],L13[33],R13[33],L14[33],R14[33],L15[33],R15[33],L16[33],R16[33];
  int i,j;
  int IP_1[64]={40,8,48,16,56,24,64,32,
	              39,7,47,15,55,23,63,31,
	              38,6,46,14,54,22,62,30,
	              37,5,45,13,53,21,61,29,
	              36,4,44,12,52,20,60,28,
	              35,3,43,11,51,19,59,27,
	              34,2,42,10,50,18,58,26,
	              33,1,41,9,49,17,57,25};
  int P[33]={16,7,20,21,
	           29,12,28,17,
	           1,15,23,26,
	           5,18,31,10,
	           2,8,24,14,
	           32,27,3,9,
	           19,13,30,6,
	           22,11,4,25};
  	int s1[4][16]={14,4,13,1,2,15,11,8,3,10,6,12,5,9,0,7,
	               0,15,7,4,14,2,13,1,10,6,12,11,9,5,3,8,
	               4,1,14,8,13,6,2,11,15,12,9,7,3,10,5,0,
	               15,12,8,2,4,9,1,7,5,11,3,14,10,0,6,13};
    int s2[4][16]={15,1,8,14,6,11,3,4,9,7,2,13,12,0,5,10,
	               3,13,4,7,15,2,8,14,12,0,1,10,6,9,11,5,
	               0,14,7,11,10,4,13,1,5,8,12,6,9,3,2,15,
	               13,8,10,1,3,15,4,2,11,6,7,12,0,5,14,9};
	int s3[4][16]={10,0,9,14,6,3,15,5,1,13,12,7,11,4,2,8,
            	   13,7,0,9,3,4,6,10,2,8,5,14,12,11,15,1,
	               13,6,4,9,8,15,3,0,11,1,2,12,5,10,14,7,
	               1,10,13,0,6,9,8,7,4,15,14,3,11,5,2,12};
	int s4[4][16]={7,13,14,3,0,6,9,10,1,2,8,5,11,12,4,15,
	               13,8,11,5,6,15,0,3,4,7,2,12,1,10,14,9,
	               10,6,9,0,12,11,7,13,15,1,3,14,5,2,8,4,
	               3,15,0,6,10,1,13,8,9,4,5,11,12,7,2,14};
	int s5[4][16]={2,12,4,1,7,10,11,6,8,5,3,15,13,0,14,9,
	               14,11,2,12,4,7,13,1,5,0,15,10,3,9,8,6,
	               4,2,1,11,10,13,7,8,15,9,12,5,6,3,0,14,
	               11,8,12,7,1,14,2,13,6,15,0,9,10,4,5,3};
	int s6[4][16]={12,1,10,15,9,2,6,8,0,13,3,4,14,7,5,11,
	               10,15,4,2,7,12,9,5,6,1,13,14,0,11,3,8,
    	           9,14,15,5,2,8,12,3,7,0,4,10,1,13,11,6,
	               4,3,2,12,9,5,15,10,11,14,1,7,6,0,8,13};
	int s7[4][16]={4,11,2,14,15,0,8,13,3,12,9,7,5,10,6,1,
	               13,0,11,7,4,9,1,10,14,3,5,12,2,15,8,6,
	               1,4,11,13,12,3,7,14,10,15,6,8,0,5,9,2,
	               6,11,13,8,1,4,10,7,9,5,0,15,14,2,3,12};
	int s8[4][16]={13,2,8,4,6,15,11,1,10,9,3,14,5,0,12,7,
	               1,15,13,8,10,3,7,4,12,5,6,11,0,14,9,2,
	               7,11,4,1,9,12,14,2,0,6,10,13,15,3,5,8,
	               2,1,14,7,4,10,8,13,15,12,9,0,3,5,6,11};
  int E[49]={32,1,2,3,4,5,
	           4,5,6,7,8,9,
	           8,9,10,11,12,13,
	           12,13,14,15,16,17,
	           16,17,18,19,20,21,
	           20,21,22,23,24,25,
	           24,25,26,27,28,29,
	           28,29,30,31,32,31};
  int ip[65]={58,50,42,34,26,18,10,2,
	          60,52,44,36,28,20,12,4,
	          62,54,46,38,30,22,14,6,
	          64,56,48,40,32,24,16,8,
	          57,49,41,33,25,17,9,1,
	          59,51,43,35,27,19,11,3,
	          61,53,45,37,29,21,13,5,
	          63,55,47,39,31,23,15,7};
  int s[9],s11[7],s21[7],s31[7],s41[7],s51[7],s61[7],s71[7],s81[7];
  int temp[5];
  for(i=1;i<=64;i++)
  {
	  t2[i]=t1[ip[i-1]];
  }
  for(i=1;i<33;i++)
  {
	  R0[i]=t2[i];
	  L0[i]=t2[i+32];
  }
//第一次迭代
  for(i=1;i<=48;i++)//经过E变换扩充，由32位变为48位
    RE1[i]=R0[E[i-1]];
  for(i=1;i<=48;i++)//与K1按位作不进位加法运算
	RE1[i]=RE1[i]+K16[i];
  for(i=1;i<=48;i++)
  {
	if(RE1[i]==2)
      RE1[i]=0;
  }
  for(i=1;i<7;i++)//48位分成8组
  {
	s11[i]=RE1[i];
	s21[i]=RE1[i+6];
	s31[i]=RE1[i+12];
	s41[i]=RE1[i+18];
	s51[i]=RE1[i+24];
	s61[i]=RE1[i+30];
	s71[i]=RE1[i+36];
	s81[i]=RE1[i+42];
  }//下面经过S盒，得到8个数
  s[1]=s1[s11[6]+s11[1]*2][s11[5]+s11[4]*2+s11[3]*4+s11[2]*8];
  s[2]=s2[s21[6]+s21[1]*2][s21[5]+s21[4]*2+s21[3]*4+s21[2]*8];
  s[3]=s3[s31[6]+s31[1]*2][s31[5]+s31[4]*2+s31[3]*4+s31[2]*8];
  s[4]=s4[s41[6]+s41[1]*2][s41[5]+s41[4]*2+s41[3]*4+s41[2]*8];
  s[5]=s5[s51[6]+s51[1]*2][s51[5]+s51[4]*2+s51[3]*4+s51[2]*8];
  s[6]=s6[s61[6]+s61[1]*2][s61[5]+s61[4]*2+s61[3]*4+s61[2]*8];
  s[7]=s7[s71[6]+s71[1]*2][s71[5]+s71[4]*2+s71[3]*4+s71[2]*8];
  s[8]=s8[s81[6]+s81[1]*2][s81[5]+s81[4]*2+s81[3]*4+s81[2]*8];
  for(i=0;i<8;i++)//8个数变换输出二进制
  {
 	for(j=1;j<5;j++)
	{
	  temp[j]=s[i+1]%2;
	  s[i+1]=s[i+1]/2;
	}
	for(j=1;j<5;j++)
      f[4*i+j]=temp[5-j];
  }
  for(i=1;i<33;i++)//经过P变换
    frk[i]=f[P[i-1]];
  for(i=1;i<33;i++)
    L1[i]=R0[i];
  for(i=1;i<33;i++)
  {
	R1[i]=L0[i]+frk[i];
	if(R1[i]==2)
      R1[i]=0;
  }
//进行第二次迭代
	for(i=1;i<=48;i++)//经过E变换扩充，由32位变为48位
	  RE1[i]=R1[E[i-1]];
	for(i=1;i<=48;i++)//与K15按位作不进位加法运算
	  RE1[i]=RE1[i]+K15[i];
	for(i=1;i<=48;i++)
    {
		if(RE1[i]==2)
          RE1[i]=0;
    }
	for(i=1;i<7;i++)//48位分成8组
	{
		s11[i]=RE1[i];
		s21[i]=RE1[i+6];
		s31[i]=RE1[i+12];
		s41[i]=RE1[i+18];
		s51[i]=RE1[i+24];
		s61[i]=RE1[i+30];
		s71[i]=RE1[i+36];
		s81[i]=RE1[i+42];
	}//下面经过S盒，得到8个数
	s[1]=s1[s11[6]+s11[1]*2][s11[5]+s11[4]*2+s11[3]*4+s11[2]*8];
	s[2]=s2[s21[6]+s21[1]*2][s21[5]+s21[4]*2+s21[3]*4+s21[2]*8];
	s[3]=s3[s31[6]+s31[1]*2][s31[5]+s31[4]*2+s31[3]*4+s31[2]*8];
	s[4]=s4[s41[6]+s41[1]*2][s41[5]+s41[4]*2+s41[3]*4+s41[2]*8];
	s[5]=s5[s51[6]+s51[1]*2][s51[5]+s51[4]*2+s51[3]*4+s51[2]*8];
	s[6]=s6[s61[6]+s61[1]*2][s61[5]+s61[4]*2+s61[3]*4+s61[2]*8];
	s[7]=s7[s71[6]+s71[1]*2][s71[5]+s71[4]*2+s71[3]*4+s71[2]*8];
	s[8]=s8[s81[6]+s81[1]*2][s81[5]+s81[4]*2+s81[3]*4+s81[2]*8];
	for(i=0;i<8;i++)//8个数变换输出二进制
	{
		for(j=1;j<5;j++)
		{
 		  temp[j]=s[i+1]%2;
		  s[i+1]=s[i+1]/2;
		}
		for(j=1;j<5;j++)
	      f[4*i+j]=temp[5-j];
	}
	for(i=1;i<33;i++)//经过P变换
	  frk[i]=f[P[i-1]];
	for(i=1;i<33;i++)//左右交换
      L2[i]=R1[i];
	for(i=1;i<33;i++)//R2为L1与f(R,K)进行不进位二进制加法运算结果
    {
		R2[i]=L1[i]+frk[i];
		if(R2[i]==2)
          R2[i]=0;
    }
//进行第三次迭代
	for(i=1;i<=48;i++)//经过E变换扩充，由32位变为48位
	  RE1[i]=R2[E[i-1]];
	for(i=1;i<=48;i++)//与K14按位作不进位加法运算
	  RE1[i]=RE1[i]+K14[i];
	for(i=1;i<=48;i++)
    {
		if(RE1[i]==2)
          RE1[i]=0;
    }
	for(i=1;i<7;i++)//48位分成8组
	{
		s11[i]=RE1[i];
		s21[i]=RE1[i+6];
		s31[i]=RE1[i+12];
		s41[i]=RE1[i+18];
		s51[i]=RE1[i+24];
		s61[i]=RE1[i+30];
		s71[i]=RE1[i+36];
		s81[i]=RE1[i+42];
	}//下面经过S盒，得到8个数
	s[1]=s1[s11[6]+s11[1]*2][s11[5]+s11[4]*2+s11[3]*4+s11[2]*8];
	s[2]=s2[s21[6]+s21[1]*2][s21[5]+s21[4]*2+s21[3]*4+s21[2]*8];
	s[3]=s3[s31[6]+s31[1]*2][s31[5]+s31[4]*2+s31[3]*4+s31[2]*8];
	s[4]=s4[s41[6]+s41[1]*2][s41[5]+s41[4]*2+s41[3]*4+s41[2]*8];
	s[5]=s5[s51[6]+s51[1]*2][s51[5]+s51[4]*2+s51[3]*4+s51[2]*8];
	s[6]=s6[s61[6]+s61[1]*2][s61[5]+s61[4]*2+s61[3]*4+s61[2]*8];
	s[7]=s7[s71[6]+s71[1]*2][s71[5]+s71[4]*2+s71[3]*4+s71[2]*8];
	s[8]=s8[s81[6]+s81[1]*2][s81[5]+s81[4]*2+s81[3]*4+s81[2]*8];
	for(i=0;i<8;i++)//8个数变换输出二进制
	{
		for(j=1;j<5;j++)
		{
 		  temp[j]=s[i+1]%2;
		  s[i+1]=s[i+1]/2;
		}
		for(j=1;j<5;j++)
	      f[4*i+j]=temp[5-j];
	}
	for(i=1;i<33;i++)//经过P变换
	  frk[i]=f[P[i-1]];
	for(i=1;i<33;i++)//左右交换
      L3[i]=R2[i];
	for(i=1;i<33;i++)//R3为L2与f(R,K)进行不进位二进制加法运算结果
    {
		R3[i]=L2[i]+frk[i];
		if(R3[i]==2)
          R3[i]=0;
    }
//进行第四次迭代
	for(i=1;i<=48;i++)//经过E变换扩充，由32位变为48位
	  RE1[i]=R3[E[i-1]];
	for(i=1;i<=48;i++)//与K13按位作不进位加法运算
	  RE1[i]=RE1[i]+K13[i];
	for(i=1;i<=48;i++)
    {
		if(RE1[i]==2)
          RE1[i]=0;
    }
	for(i=1;i<7;i++)//48位分成8组
	{
		s11[i]=RE1[i];
		s21[i]=RE1[i+6];
		s31[i]=RE1[i+12];
		s41[i]=RE1[i+18];
		s51[i]=RE1[i+24];
		s61[i]=RE1[i+30];
		s71[i]=RE1[i+36];
		s81[i]=RE1[i+42];
	}//下面经过S盒，得到8个数
	s[1]=s1[s11[6]+s11[1]*2][s11[5]+s11[4]*2+s11[3]*4+s11[2]*8];
	s[2]=s2[s21[6]+s21[1]*2][s21[5]+s21[4]*2+s21[3]*4+s21[2]*8];
	s[3]=s3[s31[6]+s31[1]*2][s31[5]+s31[4]*2+s31[3]*4+s31[2]*8];
	s[4]=s4[s41[6]+s41[1]*2][s41[5]+s41[4]*2+s41[3]*4+s41[2]*8];
	s[5]=s5[s51[6]+s51[1]*2][s51[5]+s51[4]*2+s51[3]*4+s51[2]*8];
	s[6]=s6[s61[6]+s61[1]*2][s61[5]+s61[4]*2+s61[3]*4+s61[2]*8];
	s[7]=s7[s71[6]+s71[1]*2][s71[5]+s71[4]*2+s71[3]*4+s71[2]*8];
	s[8]=s8[s81[6]+s81[1]*2][s81[5]+s81[4]*2+s81[3]*4+s81[2]*8];
	for(i=0;i<8;i++)//8个数变换输出二进制
	{
		for(j=1;j<5;j++)
		{
 		  temp[j]=s[i+1]%2;
		  s[i+1]=s[i+1]/2;
		}
		for(j=1;j<5;j++)
	      f[4*i+j]=temp[5-j];
	}
	for(i=1;i<33;i++)//经过P变换
	  frk[i]=f[P[i-1]];
	for(i=1;i<33;i++)//左右交换
      L4[i]=R3[i];
	for(i=1;i<33;i++)//R4为L3与f(R,K)进行不进位二进制加法运算结果
    {
		R4[i]=L3[i]+frk[i];
		if(R4[i]==2)
          R4[i]=0;
    }
//进行第五次迭代
	for(i=1;i<=48;i++)//经过E变换扩充，由32位变为48位
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