LTE/LTE-A网络中基于盲签名的具有条件隐私保护的切换认证协议  

Blind Signature-based Handover Authentication Protocol with Conditional Privacy Preserving in LTE/LTE-A Networks

作　　者：秦宁元 付安民[1,2] 陈守国[1] 

机构地区：[1]南京理工大学计算机科学与工程学院,南京210094 [2]中国科学院信息工程研究所信息安全国家重点实验室,北京100093

出　　处：《计算机科学》2015年第8期145-151,共7页Computer Science

基　　金：国家自然科学基金项目(61202352);江苏省自然科学基金项目(BK20141404);教育部博士点基金项目(20123219120030);南京理工大学"紫金之星"项目(2013ZJ0209)资助

摘　　要：LTE/LTE-A网络的设计为移动应用提供了较低的切换时延,但LTE标准中的切换过程仍存在一定的复杂性和安全缺陷。为了解决LTE标准和传统切换认证协议的缺陷,设计了一个基于盲签名的切换认证协议。在注册接入阶段通过盲签名建立用于切换过程的认证密钥,在切换过程中通过假名的可变换性和在特定条件下变为真名的可逆性来实现匿名性、不可跟踪性和条件隐私保护。理论分析和仿真结果表明,相较于LTE标准和其他切换认证协议,提出的协议在满足更多安全属性的同时,有更好的性能。LTE/LTE-A is designed to provide low handover latency for mobile applications, but there still exist some complexities and security vuinerabilities. To solve the vulnerabilities in the LTE standard and traditional handover authentication protocols,a new handover authentication protocol based on the blind signature was designed In the registration phrase, the authentication keys used in the handover phrase are provided by the blind signature, and in the handover phrase, anonymity, untraceability and conditional privacy preserving are achieved by the exchange of the pseudo- nyms and the reversibility of the real identity. The theoretical analysis and simulation results show that the proposed protocol not only satisfies more security properties, but also has better performance compared with the LTE standard and other handover authentication protocols.

关 键 词：LTE/LTE-A 盲签名 切换认证 条件隐私保护 前/后向安全 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]