//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------
DWORD __fastcall TForm1::GetDiskSNo(void)
{
LPTSTR lpRootPathName="A:";
LPTSTR lpVolumeNameBuffer=new char[12];
DWORD nVolumeNameSize=12;
DWORD lpVolumeSerialNumber;
DWORD lpMaximumComponentLength;
DWORD lpFileSystemFlags;
LPTSTR lpFileSystemNameBuffer=new char[10];
DWORD nFileSystemNameSize=10;
GetVolumeInformation(
lpRootPathName,
lpVolumeNameBuffer,
nVolumeNameSize,
&lpVolumeSerialNumber,
&lpMaximumComponentLength,
&lpFileSystemFlags,
lpFileSystemNameBuffer,
nFileSystemNameSize);
return lpVolumeSerialNumber;
}
void __fastcall TForm1::Button1Click(TObject *Sender)
{
int ff;
DWORD dd;
dd=GetDiskSNo();
dd^=0x87654321;
ff = FileCreate("A:\\sec.sno");
if(ff==-1)
{
ShowMessage("加密不成功!");
}
FileWrite(ff, &dd,sizeof(dd));
FileClose(ff);
Edit1->Text=IntToHex((int)dd,1);
ShowMessage("加密成功!");
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
int ff;
DWORD dd,dd1;
dd=GetDiskSNo();
ff = FileOpen("A:\\sec.sno",fmOpenRead);
if(ff==-1)
{
ShowMessage("没有加密文件!");
}
FileRead(ff, &dd1,sizeof(dd1));
FileClose(ff);
dd1^=0x87654321;
Edit1->Text=IntToHex((int)dd,1);
if(dd==dd1)
ShowMessage("读加密成功!");
else
ShowMessage("不是我的加密盘!");
}
//---------------------------------------------------------------------------
