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Virtualisation of a SIM-card using trusted computing

: Kasper, M.

Volltext urn:nbn:de:0011-n-1125990 (3.0 MByte PDF)
MD5 Fingerprint: df398b8c424c57b2b8f581969a1132ce
Erstellt am: 4.12.2009

Darmstadt, 2007, IX, 91 S.
Darmstadt, Hochschule, Dipl.-Arb., 2007
Diplomarbeit, Elektronische Publikation
Fraunhofer SIT ()

The goal of this thesis is to examine, how subscriber authentication in mobile cellular networks could be implemented to the next generation of mobile phones and devices. In this context, we consider and evaluate several architectural directions and propose a novel solution of a software replacement for the Subscriber Identity Module (SIM) based on the TCG MPWG Reference Architecture. Therefor, we introduce a virtual software SIM (vSIM) with comparable usage and security characteristics like the smartcard-based solutions.
Our approach demonstrates the substitutability of a SIM card with an adequate trusted software module supported and protected by a trustworthy operating system. In particular, we propose several methods for authentication and enrollment of a subscriber, the practical design and implementation of this concepts and how to deploy it to a trustworthy operating platform. Furthermore, we propose a method for the remote-take-ownership of a device by the mobile network operator and the migration of subscriber credentials between devices.
We will focus the evaluation on a set of benchmarks which are seen as crucial for development and production, as well as for market and user's requirements of mobile devices such as mobile phones. Running a virtual SIM as a trusted and protected software on a mobile device allow significant expansion of services by introducing new usage scenarios and business models, cost reduction and more flexibility, while a high level of security is still available.