offexplo.cpp

破解很多程序的序列号算法程序

#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
main()
{
int i,j=0,digit ;
char username[50]="Offline Explorer 1",temp[25] ;
unsigned long eax,ebx=0x6d363c1,esi,reg,edx ;
clrscr() ;
printf("Key Generator Offline Explorer 1.0 by flag eRRatum\n") ;
printf("Visit our Page at http:\\\\all.at\\ekh\n") ;
printf("Enter User Name : ") ;
gets(temp) ;
strcat(username,temp) ;
strcat(username,"Single") ;
for (i=0;i<strlen(username);i++)
  {
  ebx<<=4 ;
  eax=username[i]+ebx ;
  ebx=eax ; eax=ebx ; eax&=0xf0000000 ;
  if (eax!=0)
    {
    esi=eax ; ebx^=(esi >> 0x18) ;
    }
  eax=~eax ;
  ebx&=eax ;
  }
edx=ebx ;
esi=ebx % 0x1b9 ;
ebx<<=16 ; ebx>>=16 ;
i=0 ;
eax=ebx ;
printf("Your Registration Key is : ") ;
do
  {
  i++ ;
  eax/=7 ;
  } while (eax != 0) ;
digit=i ;
do
  {
  gotoxy(digit,5) ; printf("%lu",(ebx%7)+2) ; ebx/=7 ; digit-- ;
  } while (ebx != 0) ;
ebx=edx ; gotoxy(i+1,5) ; printf("-") ;
do
  {
  j++ ;
  edx/=9 ;
  } while (edx != 0) ;
digit=j ;
do
  {
  gotoxy(digit+i+1,5) ; printf("%lu",(ebx%9)+1) ; ebx/=9 ; digit-- ;
  } while (ebx != 0) ;
gotoxy(i+j+2,5) ; printf("-") ;
ebx=1 ;
(char) eax ;
do
  {
  gotoxy(i+j+2+ebx,5) ;
  eax=(esi % 0x15) + 0x41 ;
  esi=esi/0x15 ;
  if (eax>=0x49) eax++ ;
  if (eax>=0x4f) eax++ ;
  if (eax>=0x55) eax+=2 ;
  printf("%c",eax) ;
  ebx++ ;
  } while (ebx<3) ;
printf("\n") ;
textcolor(LIGHTRED) ;
cprintf("Please Visit our page for more cracks.") ;
return (0) ;
}