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Old 06-27-2004, 09:28 AM   #76
doctorow
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Old 06-27-2004, 09:28 AM   #77
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WOW !!!

Cheers to Alex
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Old 06-27-2004, 09:38 AM   #78
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doctorow, alex,

you guys don't mind when I bring your findings to the frontpage? It's some interesting work you two came up with!
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Old 06-27-2004, 09:38 AM   #79
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Hey.. Alex its Cyberax (Vijay Bhatter)

The site looks good
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Old 06-27-2004, 09:40 AM   #80
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I'm just setting up a page to demonstrate it. Soon as my remote server wakes up i'll host it on that instead of my home machine. 5 mins or so till im ready.
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Old 06-27-2004, 09:43 AM   #81
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Alex, I really like your site. Sure go ahead and post about it!
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Old 06-27-2004, 09:46 AM   #82
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http://meese.ath.cx/google/

please dont link to this page its hosted on my ADSL line at home. I will make a mirror page on my datacenter server as soon as i can.
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Old 06-27-2004, 09:49 AM   #83
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alex, can you provide the source so that we can publish it now?
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Old 06-27-2004, 09:49 AM   #84
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Ah just saw it! Thanks!
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Old 06-27-2004, 09:51 AM   #85
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http://alex.vort-x.net/google/
you may link here.
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Old 06-27-2004, 09:51 AM   #86
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Quote:
Originally Posted by Alexander
doctorow, alex,

you guys don't mind when I bring your findings to the frontpage? It's some interesting work you two came up with!
Seems like I was left out. Anyways...

Thanks to Alex and Doctorow for such a good work
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Old 06-27-2004, 09:52 AM   #87
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The Google Checksum Calculator, by Alex Stapleton, Andy Doctorow, Vijay "Cyberax" Bhatter, and a few others.

PHP Code:
<?php 
/* 
    This code is released unto the public domain 
*/ 
header("Content-Type: text/plain; charset=utf-8"); 
define('GOOGLE_MAGIC'0xE6359A60); 

//unsigned shift right 
function zeroFill($a$b

    
$z hexdec(80000000); 
        if (
$z $a
        { 
            
$a = ($a>>1); 
            
$a &= (~$z); 
            
$a |= 0x40000000
            
$a = ($a>>($b-1)); 
        } 
        else 
        { 
            
$a = ($a>>$b); 
        } 
        return 
$a



function 
mix($a,$b,$c) { 
  
$a -= $b$a -= $c$a ^= (zeroFill($c,13)); 
  
$b -= $c$b -= $a$b ^= ($a<<8); 
  
$c -= $a$c -= $b$c ^= (zeroFill($b,13)); 
  
$a -= $b$a -= $c$a ^= (zeroFill($c,12)); 
  
$b -= $c$b -= $a$b ^= ($a<<16); 
  
$c -= $a$c -= $b$c ^= (zeroFill($b,5)); 
  
$a -= $b$a -= $c$a ^= (zeroFill($c,3));   
  
$b -= $c$b -= $a$b ^= ($a<<10); 
  
$c -= $a$c -= $b$c ^= (zeroFill($b,15)); 
   
  return array(
$a,$b,$c); 


function 
GoogleCH($url$length=null$init=GOOGLE_MAGIC) { 
    if(
is_null($length)) { 
        
$length sizeof($url); 
    } 
    
$a $b 0x9E3779B9
    
$c $init
    
$k 0
    
$len $length
    while(
$len >= 12) { 
        
$a += ($url[$k+0] +($url[$k+1]<<8) +($url[$k+2]<<16) +($url[$k+3]<<24)); 
        
$b += ($url[$k+4] +($url[$k+5]<<8) +($url[$k+6]<<16) +($url[$k+7]<<24)); 
        
$c += ($url[$k+8] +($url[$k+9]<<8) +($url[$k+10]<<16)+($url[$k+11]<<24)); 
        
$mix mix($a,$b,$c); 
        
$a $mix[0]; $b $mix[1]; $c $mix[2]; 
        
$k += 12
        
$len -= 12
    } 

    
$c += $length
    switch(
$len)              /* all the case statements fall through */ 
    

        case 
11$c+=($url[$k+10]<<24); 
        case 
10$c+=($url[$k+9]<<16); 
        case 
$c+=($url[$k+8]<<8); 
          
/* the first byte of c is reserved for the length */ 
        
case $b+=($url[$k+7]<<24); 
        case 
$b+=($url[$k+6]<<16); 
        case 
$b+=($url[$k+5]<<8); 
        case 
$b+=($url[$k+4]); 
        case 
$a+=($url[$k+3]<<24); 
        case 
$a+=($url[$k+2]<<16); 
        case 
$a+=($url[$k+1]<<8); 
        case 
$a+=($url[$k+0]); 
         
/* case 0: nothing left to add */ 
    

    
$mix mix($a,$b,$c); 
    
/*-------------------------------------------- report the result */ 
    
return $mix[2]; 


//converts a string into an array of integers containing the numeric value of the char 
function strord($string) { 
    for(
$i=0;$i<strlen($string);$i++) { 
        
$result[$i] = ord($string{$i}); 
    } 
    return 
$result

// [url]http://www.example.com/[/url] - Checksum: 6540747202 
$url 'info:'.$_GET['url']; 
print(
"url:\t{$_GET['url']}\n"); 
$ch GoogleCH(strord($url)); 
printf("ch:\t6%u\n",$ch); 
?>
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Old 06-27-2004, 09:53 AM   #88
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Mmmm messy. Should really of made it prettier. Oh well.
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Old 06-27-2004, 09:54 AM   #89
Alexander Turcic
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cyberax, sorry about that This thread just came to my attention and I didn't read every single post.
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Old 06-27-2004, 10:13 AM   #90
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http://forums.seochat.com/t12316/s.html
news is spreading fast it seems.
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