MINITEE—A lightweight trustzone-assisted TEE for real-time systems

Songran Liu, Nan Guan, Zhishan Guo, Wang Yi

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

While trusted execution environments (TEEs) provide industry standard security and isolation, TEE requests through secure monitor calls (SMCs) attribute to large time overhead and weakened temporal predictability. Moreover, as current available TEE solutions are designed for Linux and/or Android initially, it will encounter many constraints (e.g., driver libraries incompatible, large memory footprint, etc.) when integrating with low-end Real-Time Operating Systems, RTOSs. In this paper, we present MINITEE to understand, evaluate and discuss the benefits and limitations when integrating TrustZone-assisted TEEs with RTOSs. We demonstrate how MINITEE can be adequately exploited for meeting the real-time needs, while presenting a low performance overhead to the rich OSs (i.e., low-end RTOSs).

Original languageEnglish
Article number1130
Pages (from-to)1-18
Number of pages18
JournalElectronics (Switzerland)
Volume9
Issue number7
DOIs
Publication statusPublished - 2020

Keywords

  • ARM TrustZone
  • Real-time system
  • Trusted execution environment

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Hardware and Architecture
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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