Code:
// EC1AssignmentDlg.cpp : implementation file
//
#include "stdafx.h"
#include "EC1Assignment.h"
#include "EC1AssignmentDlg.h"
#include "abstract.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()
/////////////////////////////////////////////////////////////////////////////
// CEC1AssignmentDlg dialog
CEC1AssignmentDlg::CEC1AssignmentDlg(CWnd* pParent /*=NULL*/)
: CDialog(CEC1AssignmentDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CEC1AssignmentDlg)
m_prime1 = 7;
m_prime2 = 17;
m_chk_p1 = TRUE;
m_chk_p2 = TRUE;
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CEC1AssignmentDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CEC1AssignmentDlg)
DDX_Control(pDX, IDC_VALUES, m_values);
DDX_Control(pDX, IDC_PUBLIC_KEY, m_ku);
DDX_Control(pDX, IDC_PRIVATE_KEY, m_kr);
DDX_Control(pDX, IDC_NOTES, m_Notes);
DDX_Text(pDX, IDC_PRIME1, m_prime1);
DDX_Text(pDX, IDC_PRIME2, m_prime2);
DDX_Check(pDX, IDC_CHECK_P1, m_chk_p1);
DDX_Check(pDX, IDC_CHECK_P2, m_chk_p2);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CEC1AssignmentDlg, CDialog)
//{{AFX_MSG_MAP(CEC1AssignmentDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_GEN_KEY, OnGenKey)
ON_BN_CLICKED(IDC_EMPTY_NOTES, OnEmptyNotes)
ON_BN_CLICKED(IDC_ENCRYPT, OnEncrypt)
ON_BN_CLICKED(IDC_DECRYPT, OnDecrypt)
ON_BN_CLICKED(IDC_COMPARE, OnCompare)
ON_BN_CLICKED(IDC_ABSTRACT, OnAbstract)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CEC1AssignmentDlg message handlers
BOOL CEC1AssignmentDlg::OnInitDialog()
{
CDialog::OnInitDialog();
AfxInitRichEdit();
// 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
static CFont fnt;
fnt.CreatePointFont(90,"Courier New");
m_Notes.SetFont(&fnt, true);
m_values.SetFont(&fnt, true);
// TODO: Add extra initialization here
m_inFPName_to_encrypt = "\\\\";
m_inFPName_to_decrypt = "\\\\";
m_key_gen_done_flg = false;
return TRUE; // return TRUE unless you set the focus to a control
}
void CEC1AssignmentDlg::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 CEC1AssignmentDlg::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 CEC1AssignmentDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CEC1AssignmentDlg::OnGenKey()
{
Execute();
m_key_gen_done_flg = true;
}
void CEC1AssignmentDlg::DumpNotes(CString &str)
{
CString winStr;
m_Notes.GetWindowText(winStr);
m_Notes.SetSel(winStr.GetLength(),winStr.GetLength());
winStr = "";
if(str[0] == 0x0A) {
winStr = 0x0D;
}
winStr += str;
m_Notes.ReplaceSel(winStr);
}
void CEC1AssignmentDlg::WriteValues(CString &str)
{
CString winStr;
m_values.GetWindowText(winStr);
m_values.SetSel(winStr.GetLength(),winStr.GetLength());
winStr = "";
if(str[0] == 0x0A) {
winStr = 0x0D;
}
winStr += str;
m_values.ReplaceSel(winStr);
}
void CEC1AssignmentDlg::OnEmptyNotes()
{
m_Notes.SetWindowText("");
}
void CEC1AssignmentDlg::ChangeFileExtension(CString &str, char changeTo[10])
{
str.MakeReverse();
char ext[5]="ABC";
for(int i=0;i<4 && i<str.GetLength();i++)
{
if(str[i] == '.') break;
ext[i] = str[i];
}
strrev(ext);
str.SetAt(0, changeTo[2]);
str.SetAt(1, changeTo[1]);
str.SetAt(2, changeTo[0]);
str.MakeReverse();
}
void CEC1AssignmentDlg::OnCompare()
{
FILE *inFP1, *inFP2;
CString str;
DumpNotes(CString("\n"));
DumpNotes(CString("\n********************************************"));
DumpNotes(CString("\nComparing text files..."));
if(m_inFPName_to_encrypt == "\\\\")
{
DumpNotes(CString("\nNote: Select and encrypt a text file first..."));
return;
}
if(m_inFPName_to_decrypt == "\\\\")
{
DumpNotes(CString("\nNote: Select and decrypt an encrypted (.enc) file first..."));
return;
}
//open text file
inFP1=fopen(m_inFPName_to_encrypt,"rt");
if(inFP1==NULL)
{
str.Format("\nERROR: Couldn't open input file: %s\nAborting operation",m_inFPName_to_encrypt);
DumpNotes(str);
return;
}
//open encrypted file
CString tmp=m_inFPName_to_decrypt;
ChangeFileExtension(tmp,"dec");
inFP2=fopen(tmp,"rt");
if(inFP2==NULL)
{
str.Format("\nERROR: Couldn't open input file: %s\nAborting operation",tmp);
DumpNotes(str);
fcloseall();
return;
}
str.Format("\nfile 1: %s",m_inFPName_to_encrypt);
DumpNotes(str);
str.Format("\nfile 2: %s",m_inFPName_to_decrypt);
DumpNotes(str);
str = "\nFile Compare in progress...";
DumpNotes(str);
unsigned char data1,data2;
int sizeof_d=sizeof(data1);
while(1)
{
//read from file 1
if(fread(&data1,sizeof_d,1,inFP1)==0)
break;
//read from file 2
if(fread(&data2,sizeof_d,1,inFP2)==0)
break;
if(data1 != data2)
{
DumpNotes(CString("\nRESULT: Mismatching byte detected..."));
fcloseall();
return;
}
}//end of while loop
DumpNotes(CString("\nRESULT: Both the files has matching data..."));
fcloseall();
}//end of compare
void CEC1AssignmentDlg::OnAbstract()
{
CAbstract ab;
ab.DoModal();
}
Any help in figuring this thing out will be highly appreciated.
