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Encryption.class.php
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Encryption.class.php
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<?php
# coded by Rotem Kerner
# http://www.kerneronsec.com/
/**
* Description of Encryption_Algorithm
*
* @author exodus
*/
namespace Encryption{
require_once 'Repository.class.php';
interface Algorithm_Interface{
function _run($context);
}
abstract class Algorithm implements Algorithm_Interface{
private $data;
private $key;
public function __construct($data = false, $key = false){
$this->context = array();
$this->context['data'] = $data;
$this->context['key'] = $key;
}
public function getData(){
return $this->context['data'];
}
public function setData($data){
$this->context = array_merge($this->context, array('data' => $data));
}
public function getKey(){
return $this->context['key'];
}
public function setKey($key){
$this->context['key'] = $key;
}
public function setContext(array $context){
$this->context = array_merge($this->context, $context);
}
public function run(){
$this->contextCheck($this->context);
return $this->_run($this->context);
}
public function contextCheck($context){
throw new Exception("method 'contextCheck' must be implemented.");
}
}
class Encryption_Repository extends \Repository{
static $namespace = 'Encryption\Algorithm_Repository';
}
}
namespace Encryption\Algorithm_Repository{
function declared(){
print_r(get_declared_classes());
}
class RC4 extends \Encryption\Algorithm{
public function _run($context){
$key = $context['key'];
$data = $context['data'];
$keyCrypt = array();
foreach(explode(' ', $key) as $hex){
array_push($keyCrypt, (int) $hex);
}
$key = $keyCrypt;
$len = strlen($data);
for ($z = $y = $x = 0; $x < $len; $x++) {
$z = ($z + 1) % 256;
$y = ($y + $key[$z] + 0) % 256;
$tmp = $key[$z];
$key[$z] = $key[$y];
$key[$y] = $tmp;
$data[$x] = chr(ord($data[$x]) ^ ($key[(($key[$z] + $key[$y]) % 256)]));
}
return $data;
}
public function contextCheck($context){
if(empty($context["key"])){
throw new Exception("key must be set");
}
elseif(empty($context["data"])){
throw new Exception("data must be set");
}
}
}
class RC4_A extends \Encryption\Algorithm{
public function _run($context){
$key = $context['key'];
$data = $context['data'];
$keyCrypt = array();
foreach(explode(' ', $key) as $hex){
array_push($keyCrypt, (int) $hex);
}
$key = $keyCrypt;
$len = strlen($data);
for ($z = $y = $x = 0; $x < $len; $x++) {
$z = ($z + 3) % 256;
$y = ($y + $key[$z] +7) % 256;
$tmp = $key[$z];
$key[$z] = $key[$y];
$key[$y] = $tmp;
$data[$x] = chr(ord($data[$x]) ^ ($key[(($key[$z] + $key[$y]) % 256)]));
}
return $data;
}
public function contextCheck($context){
if(empty($context["key"])){
throw new Exception("key must be set");
}
elseif(empty($context["data"])){
throw new Exception("data must be set");
}
}
}
class RC4_B extends \Encryption\Algorithm{
public function _run($context){
$key = $context['key'];
$data = $context['data'];
$keyCrypt = array();
foreach(explode(' ', $key) as $hex){
array_push($keyCrypt, (int) $hex);
}
$key = $keyCrypt;
$len = strlen($data);
for ($z = $y = $x = 0; $x < $len; $x++) {
$z = ($z + 7) % 256;
$y = ($y + $key[$z] +5) % 256;
$tmp = $key[$z];
$key[$z] = $key[$y];
$key[$y] = $tmp;
$data[$x] = chr(ord($data[$x]) ^ ($key[(($key[$z] + $key[$y]) % 256)]));
}
return $data;
}
public function contextCheck($context){
if(empty($context["key"])){
throw new Exception("key must be set");
}
elseif(empty($context["data"])){
throw new Exception("data must be set");
}
}
}
class RC4_C extends \Encryption\Algorithm{
public function _run($context){
$key = $context['key'];
$data = $context['data'];
$keyCrypt = array();
foreach(explode(' ', $key) as $hex){
array_push($keyCrypt, (int) $hex);
}
$key = $keyCrypt;
$len = strlen($data);
for ($z = $y = $x = 0; $x < $len; $x++) {
$z = ($z + 4) % 256;
$y = ($y + $key[$z] + 8) % 256;
$tmp = $key[$z];
$key[$z] = $key[$y];
$key[$y] = $tmp;
$data[$x] = chr(ord($data[$x]) ^ ($key[(($key[$z] + $key[$y]) % 256)]));
}
return $data;
}
public function contextCheck($context){
if(empty($context["key"])){
throw new Exception("key must be set");
}
elseif(empty($context["data"])){
throw new Exception("data must be set");
}
}
}
class RC4_D extends \Encryption\Algorithm{
public function _run($context){
$key = $context['key'];
$data = $context['data'];
$keyCrypt = array();
foreach(explode(' ', $key) as $hex){
array_push($keyCrypt, (int) $hex);
}
$key = $keyCrypt;
$len = strlen($data);
for ($z = $y = $x = 0; $x < $len; $x++) {
$z = ($z + 5) % 256;
$y = ($y + $key[$z] + 0) % 256;
$tmp = $key[$z];
$key[$z] = $key[$y];
$key[$y] = $tmp;
$data[$x] = chr(ord($data[$x]) ^ ($key[(($key[$z] + $key[$y]) % 256)]));
}
return $data;
}
public function contextCheck($context){
if(empty($context["key"])){
throw new Exception("key must be set");
}
elseif(empty($context["data"])){
throw new Exception("data must be set");
}
}
}
class RC4_Citadel extends \Encryption\Algorithm{
public function _run($context){
$key = $context['key'];
$data = $context['data'];
$loginKey = $context['login_key'];
$keyCrypt = array();
foreach(explode(' ', $key) as $hex){
array_push($keyCrypt, (int) $hex);
}
$key = $keyCrypt;
$len = strlen($data);
$loginKeyLen = strlen($loginKey);
for($z = $y = $x = $w = 0; $x < $len; $x++)
{
$z = ($z + 1) % 256;
$y = ($y + $key[$z]) % 256;
$tmp = $key[$z];
$key[$z] = $key[$y];
$key[$y] = $tmp;
$data[$x] = chr(ord($data[$x]) ^ ($key[(($key[$z] + $key[$y]) % 256)]));
$data[$x] = chr(ord($data[$x]) ^ ord($loginKey[$w]));
if (++$w == $loginKeyLen) $w = 0;
}
return $data;
}
public function contextCheck($context){
if(empty($context["key"])){
throw new Exception("the context value 'key' must be set");
}
elseif(empty($context["data"])){
throw new Exception("the context value 'data' must be set");
}
elseif(empty($context["login_key"])){
throw new Exception("the context value 'login_key' must be set.");
}
}
}
class AES extends \Encryption\Algorithm{
public function _run($context){
$key = $context['key'];
$data = $context['data'];
$keyCrypt = false;
foreach(explode(' ', $key) as $hex){
$keyCrypt .= pack('C', hexdec($hex));
}
require_once 'AES.class.php';
$aes = new \AES($keyCrypt);
return $aes->encrypt($data);
}
public function contextCheck($context){
if(empty($context["key"])){
throw new Exception("key must be set");
}
elseif(empty($context["data"])){
throw new Exception("data must be set");
}
}
}
class RC4_Ex extends \Encryption\Algorithm{
public function _run($context){
$key = $context['key'];
$data = $context['data'];
$inc1 = $context['key_inc1'] ? $context['key_inc1'] : 1;
$inc2 = $context['key_inc2'] ? $context['key_inc2'] : 0;
$keyCrypt = array();
foreach(explode(' ', $key) as $hex){
array_push($keyCrypt, (int) $hex);
}
$key = $keyCrypt;
$len = strlen($data);
#print "the incrementers - ".$this->inc1." ".$this->inc2;
for ($z = $y = $x = 0; $x < $len; $x++) {
$z = ($z + $inc1) % 256;
$y = ($y + $key[$z] + $inc2) % 256;
$tmp = $key[$z];
$key[$z] = $key[$y];
$key[$y] = $tmp;
$data[$x] = chr(ord($data[$x]) ^ ($key[(($key[$z] + $key[$y]) % 256)]));
}
return $data;
}
public function contextCheck($context){
if(empty($context["key"])){
throw new Exception("key must be set");
}
elseif(empty($context["data"])){
throw new Exception("data must be set");
}
}
}
}
?>