how can we generate the bit greater than 60000?
- by thinthinyu
we can now generate about 50000bits. my code cannot generate more than 60000 bit..please help me............m_B is member variable and type is CString.
// LFSR_ECDlg.cpp : implementation file
//
#include "stdafx.h"
#include "myecc.h"
#include "LFSR_ECDlg.h"
#include "MyClass.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
extern MyClass mycrv;
/////////////////////////////////////////////////////////////////////////////
// LFSR_ECDlg dialog
LFSR_ECDlg::LFSR_ECDlg(CWnd* pParent /*=NULL*/)
: CDialog(LFSR_ECDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(LFSR_ECDlg)
m_C1 = 0;
m_C2 = 0;
m_B = _T("");
m_p = _T("");
m_Qty = 0;
m_time = _T("");
//}}AFX_DATA_INIT
}
void LFSR_ECDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(LFSR_ECDlg)
DDX_Text(pDX, IDC_C1, m_C1);
DDX_Text(pDX, IDC_C2, m_C2);
DDX_Text(pDX, IDC_Sequence, m_B);
DDX_Text(pDX, IDC_Sequence2, m_p);
DDX_Text(pDX, IDC_QTY, m_Qty);
DDV_MinMaxLong(pDX, m_Qty, 0, 2147483647);
DDX_Text(pDX, IDC_time, m_time);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(LFSR_ECDlg, CDialog)
//{{AFX_MSG_MAP(LFSR_ECDlg)
ON_WM_SETCURSOR()
ON_EN_CHANGE(IDC_Sequence, OnGeneratorLFSR)
ON_MESSAGE(WM_MYPAINTMESSAGE,PaintMyCaption)//by ttyu
ON_BN_CLICKED(IDC_save, Onsave)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// LFSR_ECDlg message handlers
bool LFSR_ECDlg::CheckDataEntry()
{
//if((m_Px>=mycrv.p)|(m_Py>=mycrv.p)) {AfxMessageBox("Seed [P] is invalid!");return false;}//by ttyu
if((m_C1<=0) | (m_C1>mycrv.n)) {AfxMessageBox("Constant c1 is not valid!");return false;}
if((m_C2<=0 )| (m_C2>mycrv.n)) {AfxMessageBox("Constant c2 is not valid!");return false;}
return true;
}
void LFSR_ECDlg::OnOK()
{
UpdateData(true);
static int stime,etime,dtime;
CString txt;
m_time="";
CTime t(CTime::GetCurrentTime());
CString txt1;
txt1="";
//ms = t.GetDay(); // TODO: Add extra validation here
stime=t.GetTime();
txt1.Format("%d",stime);
AfxMessageBox (txt1);
txt="";
if (CheckDataEntry()) OnGeneratorLFSR();
etime=t.GetTime();
CString txt2;
txt2="";
txt2.Format("%d",etime);
AfxMessageBox (txt2);
dtime=etime-stime;
txt.Format("%f",dtime);
m_time+=txt;
// UpdateData(false);
//rtime.Format("%s, %s %d, %d.",day,month,dd,yy);
//CDialog::OnOK();
}
void LFSR_ECDlg::OnCancel()
{
// TODO: Add extra cleanup here
CDialog::OnCancel();
}
void LFSR_ECDlg::OnGeneratorLFSR()
{
// TODO: If this is a RICHEDIT control, the control will not
// send this notification unless you override the CDialog::OnInitDialog()
// function and call CRichEditCtrl().SetEventMask()
// with the ENM_CHANGE flag ORed into the mask.
// TODO: Add your control notification handler code here
point P0,P1,P2;
P0 = mycrv.G;
P1 = mycrv.MulPoint(P0,2);
int C1=m_C1, C2=m_C2, n=m_Qty, k=0;
int q= (mycrv.p-1) / 2;
m_p = "";
m_B = "";
CString txt;
for(int i=0;i<n;i++)
{
txt="";
if(P0==mycrv.O) txt.Format("O");
else txt.Format("(%d, %d)",P0.x,P0.y);
m_p +=txt;
m_p += 13;
m_p += 10;
if((P0.y >= 0)&&(P0.y <= q)) m_B += "0";
else if(P0 == mycrv.O) m_B += "0";
else m_B += "1";
//m_B += 13;//by ttyu
// m_B += 10;//by ttyu
P2 = mycrv.AddPoints(mycrv.MulPoint(P1,C2), mycrv.MulPoint(P0,C1));
P0 = P1;
P1 = P2;
}
}
BOOL LFSR_ECDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// TODO: Add extra initialization here
//code for dlg bar
CString str="LFSR_EC";
m_cap.SetCaption (str);
m_cap.Install (this,WM_MYPAINTMESSAGE);
//////////////////////////////
return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}
LRESULT LFSR_ECDlg::PaintMyCaption(WPARAM wp, LPARAM lp)
{
m_cap.PaintCaption(wp,lp);
return 0;
}
BOOL LFSR_ECDlg::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
// TODO: Add your message handler code here and/or call default
return CDialog::OnSetCursor(pWnd, nHitTest, message);
}
void LFSR_ECDlg::Onsave()
{
this->UpdateData();
CFile bitstream;
char strFilter[] = { "Stream Records (*.mpl)|*.mpl| (*.pis)|*.pis|All Files (*.*)|*.*||" };
CFileDialog FileDlg(FALSE, ".mpl", NULL, 0, strFilter);
//insertion//by TTT
CFile cf_object;
if( FileDlg.DoModal() == IDOK ){
cf_object.Open( FileDlg.GetFileName(), CFile::modeCreate|CFile::modeWrite);
//char szText[100];
//strcpy(szText, "File Write Test");
CString txt;
txt="";
txt.Format("%s",m_B);//by ANO
AfxMessageBox (txt);//by ANO
int mB_size=m_B.GetLength();
cf_object.Write (m_B,mB_size);
//insertion end
/* if( FileDlg.DoModal() == IDOK )
{
if( bitstream.Open(FileDlg.GetFileName(), CFile::modeCreate | CFile::modeWrite) == FALSE )
return;
CArchive ar(&bitstream, CArchive::store);
CString txt;
txt="";
txt.Format("%s",m_B);//by ANO
AfxMessageBox (txt);//by ANO
//txt=m_B;//by ANO
ar <<txt;//by ANO
ar.Close();
}
else
return;
bitstream.Close();
*/
// TODO: Add your control notification handler code here
}
}
