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seTPM: Towards flexible trusted computing on mobile devices based on GlobalPlatform secure elements

: Proskurin, S.; Weiß, M.; Sigl, G.


Homma, N.:
Smart card research and advanced applications. 14th international conference, CARDIS 2015 : Bochum, Germany, November 4-6, 2015; Revised selected papers
Cham: Springer International Publishing, 2016 (Lecture Notes in Computer Science 9514)
ISBN: 978-3-319-31270-5 (Print)
ISBN: 978-3-319-31271-2 (Online)
International Conference on Smart Card Research and Advanced Application (CARDIS) <14, 2015, Bochum>
Conference Paper
Fraunhofer AISEC ()

Insufficiently protected mobile devices present a ubiquitous threat. Due to severe hardware constraints, such as limited printed circuit board area, hardware-based security as proposed by the Trusted Computing Group is usually not part of mobile devices, yet. We present the design and implementation of seTPM, a secure element based TPM, utilizing Java Card technology. seTPM establishes trust in mobile devices by enabling Trusted Computing based integrity measurement services, such as IMA for Linux. Our prototype emulates TPM functionality on a GlobalPlatform secure element, which allows seamless integration into the Trusted Software Stack of Linux-based mobile operating systems like Android. With our work, we provide a solution to run Trusted Computing based security protocols while supplying a similar security level as provided by hardware TPM chips.