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arXiv · 1906.09799

On The Performance of ARM TrustZone

Julien Amacher·Valerio Schiavoni
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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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Julien Amacher, Valerio Schiavoni. 2019-06-26. On The Performance of ARM TrustZone. https://doi.org/10.1007/978-3-030-22496-7_9

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