LIRA-V: Lightweight Remote Attestation for Constrained RISC-V Devices [article]

Carlton Shepherd, Konstantinos Markantonakis, Georges-Axel Jaloyan
<span title="2022-03-22">2022</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
This paper presents LIRA-V, a lightweight system for performing remote attestation between constrained devices using the RISC-V architecture. We propose using read-only memory and the RISC-V Physical Memory Protection (PMP) primitive to build a trust anchor for remote attestation and secure channel creation. Moreover, we show how LIRA-V can be used for trusted communication between two devices using mutual attestation. We present the design, implementation and evaluation of LIRA-V using an
more &raquo; ... he-shelf RISC-V microcontroller and present performance results to demonstrate its suitability. To our knowledge, we present the first remote attestation mechanism suitable for constrained RISC-V devices, with applications to cyber-physical systems and Internet of Things (IoT) devices.
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