| 摘要: |
| 基于用户首次接入网络，国际移动用户识别码（IMSI）以明文形式发送的情况，提
出在LTE中利用动态移动用户识别码（DMSI）来代替IMSI的方法，并且从LTE安全的机密性和
完整性保护两个方面以及采用DES（Data Encryption Standard）加密算法进行仿真论证得
出：采用DMSI的身份认证过程安全性更强，并且可以防止重放攻击。 |
| 关键词: LTE网络 认证 国际移动用户识别码 动态移动用户识别码 机密性 完整性保护 重放攻击 |
| DOI： |
|
| 基金项目:国家自然科学基金重点项目（60830001）；国家高技术研究发展
计划（863计划）项目（2011AA010104-1）；中央高校基本科研业务费（2010JBZ008） |
|
| An Advanced Method of User Identity Authentication for LTE Networks |
| ZHANG Jing,AI Bo,ZHONG Zhang-dui |
| (State Key Laboratory of Rail Traffic Control and Safety，Beijing Jiaotong Uni
versity，Beijing 100044，China;School of Electronic and Information Engineering, Beijing Jiaotong University
，Beijing 100044，China) |
| Abstract: |
| Based on the situation that when a user accesses the network for the firs
t time the International Mobile Subscriber Identity（IMSI） is sent in cleartext,this paper proposes Dynamic Mobile Subscriber
Identity(DMSI) to replace the user′s IMSI. In consideration of both confidentialit
y and integrity protcetion of the LTE security issues and according to the simulation of Data Encryption Standard(DES)
,it is concluded that the process of user identity
authentication using DMSI is more secure，and replay attack can be avoided. |
| Key words: LTE network identity confidentiality IMSI DMSI confidentiality integrityprotection replay attack |
