基于置换再交叉加密算法的电子标签双向认证技术  

Two-way authentication technology of electronic tag based on permutation recross encryption algorithm

作　　者：聂琪鹤 王文赫 张谦 朱云良 刘冬梅 NIE Qihe;WANG Wenhe;ZHANG Qian;ZHU Yunliang;LIU Dongmei(Beijing Zhixin Microelectronics Technology Co.,Ltd.,Beijing 100192,China)

机构地区：[1]北京智芯微电子科技有限公司,北京100192

出　　处：《电子设计工程》2022年第8期104-108,共5页Electronic Design Engineering

摘　　要：传统电子标签双向认证技术忽略了读写器和电子标签的加密,导致标签认证过程的安全性较差,且隐私数据易受到攻击。为此,提出基于置换再交叉加密算法的电子标签双向认证技术。考虑单标签密钥与多标签批量密钥生成情况,采用置换再交叉加密算法加密读写器和电子标签产生的随机数,动态生成二者之间的共享密钥,增强电子标签安全系数。利用哈希函数改进双向认证技术中的随机认证协议,更换电子标签中的数据,在阅读器内保存一组非对称密钥对,使用阅读器评估加密后的信息是否相同,完成电子标签双向身份认证。实验结果表明,所提电子标签双向认证技术具备优秀的安全性与隐私属性,可有效抵御各类恶意攻击。The traditional two-way authentication technology of electronic tag neglects the encryption of reader and electronic tag,which leads to the poor security of tag authentication process and the vulnerability of privacy data to attack.Therefore,a two-way authentication technique based on permutation and cross encryption algorithm is proposed.Considering the single label key and multi-label batch key generation,the permutation and cross encryption algorithm is adopted to encrypting the random numbers generated by the reader and the electronic tag,dynamically generating the shared key between the two,and enhancing the security factor of the electronic tag.Hash function is used to improve the random authentication protocol in the two-way authentication technology,change the data in the electronic tag,save a group of asymmetric key pairs in the reader,use the reader to evaluate whether the encrypted information is the same,and complete the two-way authentication of the electronic tag.Experimental results show that the proposed two-way authentication technology has excellent security and privacy properties,and can effectively resist all kinds of malicious attacks.

关 键 词：置换再交叉加密 电子标签 双向认证技术 标签标识符 非对称密钥 

分 类 号：TP395[自动化与计算机技术—计算机应用技术]