Online PHP editor | refs for rcbTI

<?php class KZ_Crypt { public $_text = ''; //Chìa khoá để mở kho báu ^^ public $_key = 'f_pk_ZingTV_1_@z'; public $_iv = 'f_iv_ZingTV_1_@z'; //Kết quả trả về public $_result = ''; /** * Hàm mã hoá **/ public function _encrypt(){ if($this->_text != ''){ $cipher = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, ''); $iv_size = mcrypt_enc_get_iv_size($cipher); if (mcrypt_generic_init($cipher, $this->_key, $this->_iv) != -1){ $cipherText = mcrypt_generic($cipher,$this->_text); mcrypt_generic_deinit($cipher); $this->_result = bin2hex($cipherText); return true; } }else{ return false; } } /** * Hàm giải mã **/ public function _decrypt(){ if($this->_text != ''){ $cipher = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, ''); $iv_size = mcrypt_enc_get_iv_size($cipher); if(mcrypt_generic_init($cipher, $this->_key, $this->_iv) != -1){ $cipherText = mdecrypt_generic($cipher,$this->_hexToString($this->_text)); mcrypt_generic_deinit($cipher); $this->_result = $cipherText; return true; }else{ return false; } } } /** * Hàm chuyển đổi từ mã hex sang chuỗi. **/ protected function _hexToString($hex){ if(!is_string($hex)){ return null; } $char = ''; for($i=0; $i<strlen($hex);$i+=2){ $char .= chr(hexdec($hex{$i}.$hex{($i+1)})); } return $char; } }