摘要
射频识别技术具有条形码所不具备的防水防磁、读取距离大、数据可加密、存储容量大和非视距读取等优点。基本的RFID系统由标签和阅读器组成，标签内存储一定格式的电子数据，常以此作为依据识别物体；阅读器用于读取或修改标签信息，两者之间以约定的通信协议传递信息。
Thanks to the dropping of tag cost, RFID technology comes into commerce application stage and express great potential, which will bring great changes to supply chain, transportation and so on. At the same time RFID exposes several security flaws such as virus, information and privacy leakiness that will limit the development of RFID strictly. This article analyzes the security and privacy protection status, modified C1G2 RFID protocol, hidden of tag’s original ID, DNS security extension.
