Diffie-Hellman-Key-Exchange-Example.rar_加密解密_C/C++_

// SecureTalkDlg.cpp : implementation file // #include "stdafx.h" #include "SecureTalk.h" #include "SecureTalkDlg.h" #include ".\securetalkdlg.h" #ifdef _DEBUG #define new DEBUG_NEW #endif // CSecureTalkDlg dialog CSecureTalkDlg::CSecureTalkDlg(CWnd* pParent /*=NULL*/) : CDialog(CSecureTalkDlg::IDD, pParent) { m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CSecureTalkDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); DDX_Control(pDX, IDC_EDIT_G, m_Text_g); DDX_Control(pDX, IDC_EDIT_N, m_Text_n); DDX_Control(pDX, IDC_EDIT_X, m_Text_X); DDX_Control(pDX, IDC_EDIT_Y, m_Text_Y); DDX_Control(pDX, IDC_EDIT_K, m_Text_k); DDX_Control(pDX, IDC_CHECK1, m_Sender); DDX_Control(pDX, IDC_GEN_PUBLIC, m_Button_GenPubKey); DDX_Control(pDX, IDC_SEND_INTERIM, m_Button_SenderInterim); DDX_Control(pDX, IDC_RECV_INTERIM, m_Button_RecieverInterim); } BEGIN_MESSAGE_MAP(CSecureTalkDlg, CDialog) ON_WM_PAINT() ON_WM_QUERYDRAGICON() //}}AFX_MSG_MAP ON_BN_CLICKED(IDC_GEN_PUBLIC, OnBnClickedGenPublic) ON_BN_CLICKED(IDC_CHECK1, OnBnClickedCheck1) ON_BN_CLICKED(IDC_SEND_INTERIM, OnBnClickedSendInterim) ON_BN_CLICKED(IDC_RECV_INTERIM, OnBnClickedRecvInterim) ON_BN_CLICKED(IDC_CREATE_KEY, OnBnClickedCreateKey) END_MESSAGE_MAP() // CSecureTalkDlg message handlers BOOL CSecureTalkDlg::OnInitDialog() { CDialog::OnInitDialog(); // 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 m_Sender.SetCheck(1); this->OnBnClickedCheck1(); return TRUE; // return TRUE unless you set the focus to a control } // 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 CSecureTalkDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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 function to obtain the cursor to display while the user drags // the minimized window. HCURSOR CSecureTalkDlg::OnQueryDragIcon() { return static_cast<HCURSOR>(m_hIcon); } void CSecureTalkDlg::OnBnClickedGenPublic() { __int64 n = 0; __int64 g = 0; DH.CreateKeys(g,n); char str_g[255] = {0}; char str_n[255] = {0}; sprintf_s( str_g, 255, "%I64d", g ); sprintf_s( str_n, 255, "%I64d", n ); m_Text_g.SetWindowText(str_g); m_Text_n.SetWindowText(str_n); } void CSecureTalkDlg::OnBnClickedCheck1() { if (m_Sender.GetCheck()) { this->m_Button_GenPubKey.EnableWindow(); this->m_Button_RecieverInterim.EnableWindow(FALSE); this->m_Button_SenderInterim.EnableWindow(); } else { this->m_Button_GenPubKey.EnableWindow(FALSE); this->m_Button_RecieverInterim.EnableWindow(); this->m_Button_SenderInterim.EnableWindow(FALSE); } } void CSecureTalkDlg::OnBnClickedSendInterim() { if ( DH.GetIsPublicKeyCreated() == false ) { MessageBox(_T("The public keys need to be generated first"), _T("Oops!"), MB_ICONINFORMATION); return; } __int64 SInterim = 0; if ( DH.CreateSenderInterKey(SInterim) == 0 ) { char strInterim[255] = {0}; sprintf_s( strInterim, 255, "%I64d", SInterim ); m_Text_X.SetWindowText(strInterim); } } void CSecureTalkDlg::OnBnClickedRecvInterim() { __int64 SInterim = 0; CString nStr; CString gStr; m_Text_n.GetWindowText(nStr); m_Text_g.GetWindowText(gStr); __int64 n = atoi(nStr); __int64 g = atoi(gStr); if (g==0 || n==0) { MessageBox(_T("The Generator and Modulus need to be filled from Sender Information"), _T("Oops!"), MB_ICONINFORMATION); return; } DH.CreateRecipientInterKey(SInterim,g,n); char strInterim[255] = {0}; sprintf_s(strInterim, 255, "%I64d", SInterim ); m_Text_Y.SetWindowText(strInterim); } void CSecureTalkDlg::OnBnClickedCreateKey() { __int64 SenderInterim = 0; __int64 RecipientInterim = 0; __int64 EncryptionKey = 0; CString StrRecipientInterim; CString StrSenderInterim; m_Text_X.GetWindowText(StrSenderInterim); m_Text_Y.GetWindowText(StrRecipientInterim); SenderInterim = _atoi64(StrSenderInterim); RecipientInterim = _atoi64(StrRecipientInterim); if (m_Sender.GetCheck()) { //SENDER if ( DH.GetIsPublicKeyCreated() == false ) { MessageBox(_T("The public keys need to be generated first"), _T("Oops!"), MB_ICONINFORMATION); return; } if ( SenderInterim == 0 ) { MessageBox(_T("The Sender Interim needs to be generated first"), _T("Oops!"), MB_ICONINFORMATION); return; } if ( RecipientInterim == 0 ) { MessageBox(_T("The Reciever Interim key needs to be supplied from the Reciever"), _T("Oops!"), MB_ICONINFORMATION); return; } DH.CreateSenderEncryptionKey( EncryptionKey, RecipientInterim ); } else { //RECIEVER if ( DH.GetIsPublicKeyCreated() == false ) { MessageBox(_T("The Generator and Modulus need to be filled from Sender Information"), _T("Oops!"), MB_ICONINFORMATION); return; } if (SenderInterim == 0) { MessageBox(_T("The Sender Interim key needs to be supplied from the Sender"), _T("Oops!"), MB_ICONINFORMATION); return; } if ( RecipientInterim == 0 ) { MessageBox(_T("The Recipient Interim needs to be generated first"), _T("Oops!"), MB_ICONINFORMATION); return; } DH.CreateRecipientEncryptionKey( EncryptionKey, SenderInterim ); } char strKey[255] = {0}; sprintf_s( strKey, 255, "%I64d", EncryptionKey ); m_Text_k.SetWindowText(strKey); }