DES算法实现加解密的VC++程序

// 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_MEWEN = _T(""); m_YUANWEN = _T(""); m_MIYAO = _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); DDV_MaxChars(pDX, m_MINGWEN, 8); DDX_Text(pDX, IDC_EDIT2, m_MEWEN); DDX_Text(pDX, IDC_EDIT3, m_YUANWEN); DDX_Text(pDX, IDC_EDIT4, m_MIYAO); DDV_MaxChars(pDX, m_MIYAO, 8); //}}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_JIEMIBUTTON, OnJiemibutton) ON_BN_CLICKED(IDC_JMBUTTON, OnJmbutton) ON_BN_CLICKED(IDC_TCHBUTTON, OnTchbutton) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CDESDlg message handlers BOOL CDESDlg::OnInitDialog() { CDialog::OnInitDialog(); // Add "About..." menu item to system menu. m_MINGWEN="tsinghua"; m_MIYAO="computer"; UpdateData(false);//今后注意，在初始化里改变默认设置，改完后一定要刷新 // 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::OnJiemibutton() { // TODO: Add your control notification handler code here DESJIEMI(); } void CDESDlg::OnJmbutton() { // TODO: Add your control notification handler code here UpdateData(true); initial(); DESDIEDAI(); } void CDESDlg::OnTchbutton() { // TODO: Add your control notification handler code here exit(0); } void CDESDlg::Mingwenerjinzhi() { FILE *fp; char ch; static int i,j,str[8]; fp=fopen("明文二进制表示.dat","w"); for(i=0;i<8;i++) { ch=m_MINGWEN.GetAt(i); for(j=0;j<8;j++) { str[j]=ch%2; ch=ch/2; } for(j=7;j>=0;j--) fprintf(fp,"%d\n",str[j]); } fclose(fp); } void CDESDlg::MIYAOERJINZHI() { FILE *fp; char ch; static int i,j,str[8]; fp=fopen("密钥二进制表示.dat","w"); for(i=0;i<8;i++) { ch=m_MIYAO.GetAt(i); for(j=0;j<8;j++) { str[j]=ch%2; ch=ch/2; } for(j=7;j>=0;j--) fprintf(fp,"%d\n",str[j]); } fclose(fp); } void CDESDlg::initial()//生成明文的IP和密钥的16个子密钥 { FILE *fp; int m[65],m1[65],k[65],i,k0[57],C[57]; int C0[29],D0[29],C1[29],D1[29],C2[29],D2[29],C3[29],D3[29],C4[29],D4[29],C5[29],D5[29],C6[29],D6[29],C7[29],D7[29],C8[29],D8[29],C9[29],D9[29],C10[29],D10[29],C11[29],D11[29],C12[29],D12[29],C13[29],D13[29],C14[29],D14[29],C15[29],D15[29],C16[29],D16[29]; 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 PC_1[57]={57,49,41,33,25,17,9, 1,58,50,42,34,26,18, 10,2,59,51,43,35,27, 19,11,3,60,52,44,36, 63,55,47,39,31,23,15, 7,62,54,46,38,30,22, 14,6,61,53,45,37,29, 21,13,5,28,20,12,4}; int PC_2[49]={14,17,11,24,1,5, 3,28,15,6,21,10, 23,19,12,4,26,8, 16,7,27,20,13,2, 41,52,31,37,47,55, 30,40,51,45,33,48, 44,49,39,56,34,53, 46,42,50,36,29,32}; Mingwenerjinzhi(); MIYAOERJINZHI(); fp=fopen("明文二进制表示.dat","r"); for(i=1;i<=64;i++) fscanf(fp,"%d\n",&m[i]); fclose(fp); fp=fopen("密钥二进制表示.dat","r"); for(i=1;i<=64;i++) fscanf(fp,"%d\n",&k[i]); fclose(fp); for(i=1;i<=64;i++) m1[i]=m[ip[i-1]]; for(i=1;i<33;i++) L0[i]=m1[i];//明文左侧的初始化 for(i=33;i<=64;i++) R0[i-32]=m1[i];//明文右侧的初始化 for(i=1;i<57;i++)//生成子密钥 k0[i]=k[PC_1[i-1]]; for(i=1;i<29;i++) C0[i]=k0[i]; for(i=29;i<=56;i++) D0[i-28]=k0[i]; for(i=1;i<28;i++)//循环左移一位 { C1[i]=C0[i+1]; D1[i]=D0[i+1]; } C1[28]=C0[1]; D1[28]=D0[1]; for(i=1;i<=28;i++) { C[i]=C1[i]; C[i+28]=D1[i]; } for(i=1;i<=48;i++) K1[i]=C[PC_2[i-1]];//生成子密钥k1 for(i=1;i<28;i++) //循环左移一位 { C2[i]=C1[i+1]; D2[i]=D1[i+1]; } C2[28]=C1[1]; D2[28]=D1[1]; for(i=1;i<=28;i++) { C[i]=C2[i]; C[i+28]=D2[i]; } for(i=1;i<=48;i++) K2[i]=C[PC_2[i-1]];//生成子密钥k2 for(i=1;i<27;i++)//循环左移两位 { C3[i]=C2[i+2]; D3[i]=D2[i+2]; } C3[27]=C2[1]; D3[27]=D2[1]; C3[28]=C2[2]; D3[28]=D2[2]; for(i=1