Dependable TCB based on the cell broadband engine™ isolation facility

Masana Murase, Hideyuki Tokuda

研究成果: Conference contribution

抄録

A Trusted Computing Base (TCB) such as a Trusted Platform Module (TPM) or a Mobile Trusted Module plays an essential role for security and privacy applications in embedded systems such as cell phones, smart sensors, and actuators. However, existing hardware-based TCBs lack flexibility for function updates, bug fixes, and feature updates. In this paper, we present a dependable TCB on a Cell Broadband Engine™processor by providing a hardware and software hybrid TPM. Unlike prior approaches, we provide three new features: (1) TPM functions are implemented in software running in memory isolated by hardware, (2) our software TPM is launched and establishes a chain of trust from the hardware using a secure boot method, and (3) a new TPM command provides dynamic patching to the running software TPM and secure code overlays for the efficient use of the limited resources. We show the feasibility of this hybrid implementation of the TPM by assessing its performance and security properties.

本文言語English
ホスト出版物のタイトルProceedings - 17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2011
ページ360-370
ページ数11
DOI
出版ステータスPublished - 2011 12月 1
イベント17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2011 - Toyama, Japan
継続期間: 2011 8月 282011 8月 31

出版物シリーズ

名前Proceedings - 17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2011
1

Other

Other17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2011
国/地域Japan
CityToyama
Period11/8/2811/8/31

ASJC Scopus subject areas

  • 計算理論と計算数学
  • コンピュータ ネットワークおよび通信
  • コンピュータ サイエンスの応用

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