php代码加密笔记(二)

<?phpclass openssl{private $key = ‘key‘;public $id = ‘‘;function encrypt($id){ ?$id=serialize($id); ?$this->id = $id; ?$key= $this->key; ?$data[‘iv‘]=base64_encode(substr(‘fdakinel;injajdji‘,0,16)); ?$data[‘value‘]=openssl_encrypt($id, ‘AES-256-CBC‘,$key,0,base64_decode($data[‘iv‘])); ?$encrypt=base64_encode(json_encode($data)); ?return $encrypt;}function decrypt($encrypt){ ?$key = $this->key;//解密钥匙 ?$encrypt = json_decode(base64_decode($encrypt), true); ?$iv = base64_decode($encrypt[‘iv‘]); ?$decrypt = openssl_decrypt($encrypt[‘value‘], ‘AES-256-CBC‘, $key, 0, $iv); ?$id = unserialize($decrypt); ?if($id){ ???return $id; ?}else{ ???return 0; ?}}}$obj = new openssl();$encrypt = $obj->encrypt(‘1‘);echo $obj->decrypt($encrypt);