Improved User Identity Confidentiality for UMTS Mobile Networks

Behnam Sattarzadeh, Mahdi Asadpour, R. Jalili
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引用次数: 17

Abstract

In UMTS mobile networks, there are some circumstances that the International Mobile Subscriber Identity (IMSI) of a user is conveyed in clear-text over the radio interface. Such situations violate the anonymity of users. In this paper, we introduce an improved user identity confidentiality (IUIC) mechanism which attempts to avoid the drawback and makes users more anonymous. We give the role of IMSI to anonymous tickets in such a way that IMSI is never exposed on the radio interface or over any other link. Our IUIC mechanism employs symmetric cryptography based on the existing network access security features of UMTS. Its implementation, security, and performance issues are also considered
改进UMTS移动网络的用户身份保密性
在UMTS移动网络中,在某些情况下,用户的国际移动用户标识(IMSI)在无线电接口上以明文形式传递。这种情况违反了用户的匿名性。在本文中,我们引入了一种改进的用户身份保密(IUIC)机制,试图避免这一缺点,使用户更加匿名。我们以这样一种方式将IMSI的角色赋予匿名票证,即IMSI永远不会暴露在无线电接口或任何其他链路上。我们的IUIC机制采用基于UMTS现有网络访问安全特性的对称加密。还考虑了它的实现、安全性和性能问题
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