08-27-2006, 04:31 AM
| THREAD STARTER
#1 (permalink)
|
| Senior Member Join Date: Aug 2005 Location: East Yorkshire, England
Posts: 2,689
| Need help with a custom encrypt function
Here is my encrypt class: PHP Code: <?php
class Ultimate_Encrypt{
// ------------------------------[ VARIABLES ]------------------------------
var $text = '';
var $key = 0;
var $salt = '';
var $salt_bool = false;
// --------------------------[ ENCRYPTION STARTUP ]-------------------------
function Initialise_Encryption($input, $keycode){
$this->text = $input;
$this->key = $keycode;
return true;
}
function Initialise_Salt($salt){
$this->salt = $salt;
$this->salt_bool = true;
return true;
}
function Kill_Salt(){
$this->salt = '';
$this->salt_bool = false;
return true;
}
// -------------------------[ ENCRYPTION FUNCTIONS ]-------------------------
function Encrypt(){
$iterations = 1;
$key = $this->key;
$output = $this->text;
$current = 1;
$i = 3;
while($current <= $iterations){
if($i == 2){
if(($current % 2) and ($key % 2)){
$output = $this->Cypher($output);
}elseif(($current % 2)){
$output = $this->Rotate($output);
}
$i = 3;
}
if($i == 3){
if(($current % 3) and ($key % 3)){
$output = $this->Punctuation($output);
}elseif(($current % 3)){
$output = $this->Reverse($output);
}
$i = 5;
}
if($i == 5){
if($this->salt_bool == true){
if(($current % 5) and ($key % 5)){
$output = $this->Salt2($output);
}elseif(($current % 5)){
$output = $this->Salt1($output);
}
}
$i = 2;
}
}
return $output;
}
function Cypher($text){
$cyphered = str_replace('a','[#]',$text);
$cyphered = str_replace('c','[=]',$cyphered);
$cyphered = str_replace('e','[+]',$cyphered);
$cyphered = str_replace('g','[@]',$cyphered);
$cyphered = str_replace('i','[£]',$cyphered);
$cyphered = str_replace('k','[:]',$cyphered);
$cyphered = str_replace('m','[~]',$cyphered);
$cyphered = str_replace('o','[(]',$cyphered);
$cyphered = str_replace('q','[)]',$cyphered);
$cyphered = str_replace('s','["]',$cyphered);
$cyphered = str_replace('u','[?]',$cyphered);
$cyphered = str_replace('w','[/]',$cyphered);
????: NamePros.com http://www.namepros.com/programming/231928-need-help-with-custom-encrypt-function.html
$cyphered = str_replace('y','[|]',$cyphered);
$output = str_replace('[','',$cyphered);
$output = str_replace(']','',$output);
return $output;
}
function Rotate($text){
$i = 0;
$output = $text;
while($i < strlen($output)){
$output[$i] = chr($output[$i]+3);
$I++;
}
return $output;
}
function Punctuation($text){
$output = str_replace('a','a ',$text);
$output = str_replace('G','G ',$output);
$output = str_replace('w','w ',$output);
$output = str_replace('L','L ',$output);
$output = str_replace('y','y ',$output);
$output = str_replace('O','O ',$output);
return $output;
}
function Reverse($text){
$output = strrev($text);
return $output;
}
function Salt1($text){
$output = $this->salt . $text . $this->salt;
????: NamePros.com http://www.namepros.com/showthread.php?t=231928
return $output;
}
function Salt2($text){
$output = str_replace('A',$this->salt,$text);
return $output;
}
}
?> And here is some code on the same page (below the php for testing): Code: Plaintext: hello<br>
Key: 122<br>
Salt: jyf<br><br>
Encrypted Text: <?php
$enc = new Ultimate_Encrypt();
$enc->Initialise_Encryption('hello',122);
$enc->Initialise_Salt('jyf');
echo $enc->Encrypt();
?> The bug is: when I run the script, the page stays blank for a minute or so, and then spits out an internal server error.
So: - Why is it so slow?
- What causes the 500 error?
Last edited by Mikor; 08-27-2006 at 05:12 AM.
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