NDLI: Design and Implementation of Secure Embedded Systems Based on Trustzone

Content Provider	IEEE Xplore Digital Library
Author	Xu Yan-ling Pan Wei Zhang Xin-guo
Copyright Year	2008
Description	Author affiliation: Sch. of Autom., Northwestern Polytech. Univ., Xi'an (Xu Yan-ling; Pan Wei; Zhang Xin-guo)
Abstract	Embedded system serves as one of crucial components needed for various applications and services in pervasive computing environment. Security problems related to embedded systems directly influence credibility of these applications and services. In order to effectively eliminate weaknesses in current embedded systems and strongly enhance safety practices of these systems, this paper proposes a Trustzone-based secure enhancement framework for embedded system. This framework consists of a multi-policy access control mechanism and a secure reinforcement method. The multi-policy access control mechanism establishes multiple secure policies by utilizing the Domain and Type Enforcement (DTE) model and an improved Bell-La Padula (BLP) model, and the secure reinforcement method provides powerful safeguards through the employment of Linux Security Module (LSM) framework. We construct a secure embedded system environment based on TrustZone technique and secure Linux system. A prototype system founded on ARM Linux achieves rational combination of secure operating system and trustworthy hardware techniques and thus ensures diversified applications and services safety.
Starting Page	136
Ending Page	141
File Size	258184
Page Count	6
File Format	PDF
ISBN	9780769532875
DOI	10.1109/ICESS.2008.59
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-07-29
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Access control Secure embedded system Linux Security Module Security Operating systems Linux Embedded system Domain and Type Enforcement Computer architecture Trustworthy hardware Mandatory access control TrustZone Kernel
Content Type	Text
Resource Type	Article

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