/
Encrypt.php
89 lines (75 loc) · 1.72 KB
/
Encrypt.php
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<?php
namespace Etu\Core\UserBundle\Security\Encrypt;
/**
* Encrypt passwords using the parameters secret.
*
* @author Titouan
*/
class Encrypt
{
/**
* @var string
*/
protected $key;
/**
* @param string $key
*/
public function __construct($key)
{
$this->key = $key;
}
/**
* @param $text
*
* @return string
*/
public function encrypt($text)
{
$count = 0;
$result = '';
for ($i = 0; $i < strlen($text); ++$i) {
if ($count == strlen($this->key)) {
$count = 0;
}
$result .= substr($this->key, $count, 1).(substr($text, $i, 1) ^ substr($this->key, $count, 1));
++$count;
}
return base64_encode($this->generateKey($result, $this->key));
}
/**
* @param $text
*
* @return string
*/
public function decrypt($text)
{
$text = $this->generateKey(base64_decode($text), $this->key);
$result = '';
for ($i = 0; $i < strlen($text); ++$i) {
$md5 = substr($text, $i, 1);
++$i;
$result .= (substr($text, $i, 1) ^ $md5);
}
return $result;
}
/**
* @param $text
* @param $encryptKey
*
* @return string
*/
private function generateKey($text, $encryptKey)
{
$encryptKey = md5($encryptKey);
$count = 0;
$result = '';
for ($i = 0; $i < strlen($text); ++$i) {
if ($count == strlen($encryptKey)) {
$count = 0;
}
$result .= substr($text, $i, 1) ^ substr($encryptKey, $count, 1);
++$count;
}
return $result;
}
}