Abstract
The mobile telephony system has become popular due to its wide coverage, resulting in near-universal roaming service to its subscribers. However, when it comes to data transfer rates, the WLANs lead the way. WLANs have much restricted hot-spot coverage compared to mobile telephony systems, but provide better data rates at lower costs. Combining the two, results in best of both the worlds. Thus, 3GPP has proposed 3GPP-WLAN architecture to bring in this synergy between the two systems. From the subscriber’s perspective, one of the issues to be taken care of is “identity privacy”—how the identity of the subscriber be hidden from the eavesdroppers wanting to track the subscriber. 3GPP has devised a scheme for taking care of this in 3GPP-WLAN, which is different from that followed in other 3GPP systems. However, the said scheme does have certain vulnerabilities, and cannot guarantee the desired privacy. In this paper, we put forward an extension to the existing scheme to take care of these vulnerabilities. Also, this can be implemented without changes to intermediary networks or components, allowing for an easier transition.
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Choudhury, H., Roychoudhury, B., Saikia, D.K. (2015). Improving Identity Privacy in 3GPP-WLAN. In: Elleithy, K., Sobh, T. (eds) New Trends in Networking, Computing, E-learning, Systems Sciences, and Engineering. Lecture Notes in Electrical Engineering, vol 312. Springer, Cham. https://doi.org/10.1007/978-3-319-06764-3_28
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DOI: https://doi.org/10.1007/978-3-319-06764-3_28
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