分析了基于密码技术RFID现有安全协议的缺陷,基于哈希签名算法提出了一种新的非对称认证方案,合理地运用在低成本RFID系统的接入认证中,实现了安全的双向认证,并证明该方案在自适应选择消息攻击下是安全的。 This paper analyzes the defects of existing security protocols based on cryptographic technology, proposes a new asymmetric authentication scheme based on hash signature algorithm, reasonably applies it in the access authentication of low-cost RFID system, realizes secure bidirectional authentication, And proves that this scheme is safe under adaptive choice message attack.