移动通信用户身份保密的增强方法

The Enhanced Methods of User Identity's Confidentiality in Mobile Communication

针对现有移动通信标准中无法完全实现用户身份保密这一问题,该文提出了分别基于公钥密码学和对称密钥密码学的两种改进措施,将用户的真实身份隐蔽在众多的用户标识里,使攻击者不能确切地得到用户身份的具体信息,明显增强了用户身份的保密性,并且分析比较了两种措施的性能。这些改进措施可以用于任何移动通信技术中。

Focused on the scenario that none of the current standards achieves user identity＇s confidentiality, two enhanced methods are proposed, respectively based on public key cryptography and symmetric key cryptography, in which each user＇s real identity is concealed among many users＇ identities. So attackers can not capture the concrete identity information and user identity confidentiality is improved obviously. The performance of the two methods is analyzed and compared. And the proposed methods can be used in other mobile communication technologies.