期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2011
卷号：2
期号：3(Version 1)
出版社：Ayushmaan Technologies
摘要：Mobile operators are embracing Wi-Fi technology as a low-cost, high-performance RAN (radio access network) technology. Unlicensed Mobile Access (UMA) is a new technology that provides access to GSM services over Wireless LAN or Bluetooth. It also challenges the assumption of closed platforms, since it is relatively easy to implement a UMA phone purely in software running on standard PC hardware and operating systems. This paper examines the security implications of UMA for GSM security, focusing especially on the techniques to reduce the problem of Eavesdropping. We identify several areas where open platforms may increase risks to both honest users and network operators, and propose countermeasures for mitigating these risks. We implement dynamic key management scheme for this purpose.
