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On the Performance of ARM TrustZone

Abstract : The TrustZone technology, available in the vast majority of recent Arm processors, allows the execution of code inside a so-called secure world. It effectively provides hardware-isolated areas of the processor for sensitive data and code, i.e., a trusted execution environment (TEE). The Op-Tee framework provides a collection of toolchain, open-source libraries and secure kernel specifically geared to develop applications for TrustZone. This paper presents an in-depth performance- and energy-wise study of TrustZone using the Op-Tee framework, including secure storage and the cost of switching between secure and unsecure worlds, using emulated and hardware measurements.
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Contributor : Hal Ifip <>
Submitted on : Friday, October 18, 2019 - 9:47:51 AM
Last modification on : Friday, October 18, 2019 - 10:13:44 AM
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Julien Amacher, Valerio Schiavoni. On the Performance of ARM TrustZone. 19th IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS), Jun 2019, Kongens Lyngby, Denmark. pp.133-151, ⟨10.1007/978-3-030-22496-7_9⟩. ⟨hal-02319569⟩



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