Taming "trusted platforms" by operating system design

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Abstract

Experiences of the past have shown that common computing platforms lack security due to architectural problems and complexity. In this context, Microsoft Palladium (Pd) and TCPA are announced to be the next-generation computing platforms, and claimed to improve users' security. However, people are concerned about those capabilities of TCPA/Pd that may allow content providers to gain too much power and control over the use of digital content and users' private information. In this paper, we argue that TCPA/Pd can increase the security of computing platforms by faithfully designing the operating system. Moreover, we discuss how interferences between digital rights management capabilities and end-user security can be prevented. Our results are based on the fact that even with TCPA/Pd platforms the operating system has enough control over the platform to prevent misuse by both content providers and end-users. We argue that such a trustworthy operating system, that is secure in the sense of multilateral security, can be developed without much effort by efficiently combining the ideas of security kernels and state of the art of operating system technology. We propose a new architecture for a trustworthy security platform that uses TCPA/Pd hardware features in conjunction with an open-source security kernel we have developed. Our security kernel provides backward-compatibility to the Linux operating system. The layered design and its lightweightness allows an easy migration to other hardware platforms like PDAs, mobile phones, and embedded systems. © Springer-Verlag 2004.

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Sadeghi, A. R., & Stühle, C. (2004). Taming “trusted platforms” by operating system design. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2908, 286–302. https://doi.org/10.1007/978-3-540-24591-9_22

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