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<?php
require_once dirname(__FILE__).'/../../secure/Crypt/AES.php';
class WebParamsCrypto {
private $merchantKey;
private $aes;
/**
*
* @param unknown_type $merchantKey
*/
public function WebParamsCrypto($merchantKey){
$this->merchantKey = $merchantKey;
$this->aes = new Crypt_AES(CRYPT_AES_MODE_ECB);
$this->aes->setKey($this->initialPrivateKey());
}
private function initialPrivateKey(){
$needKey = substr($this->merchantKey,0,32);
$hexBytes = str_split($needKey);
$length = sizeof($hexBytes) / 2;
$rawBytes = array();
for($i = 0 ; $i < $length ;$i++){
$high = base_convert((string)$hexBytes[$i*2],16,10);
$low = base_convert((string)$hexBytes[$i*2+1],16,10);
if($high == 0){
$high = ord($hexBytes[$i*2]) % 16;
}
if($low == 0){
$low = ord($hexBytes[$i*2+1]) % 16;
}
$value = ( ($high << 4) | $low );
if($value > 127) {
$value-=256;
}
$rawBytes[$i] = chr($value);
} // for end
return implode($rawBytes);
}
/**
*
* @param unknown_type $request
* @param unknown_type $decryptTargets
*/
public function decrypt($encryptText){
return $this->aes->decrypt(base64_decode($encryptText));
}
}
?>
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