Onboarding and Software Update Architecture for IoT Devices
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There has been a continuous growth in the usage of number of IoT devices. These devices are subject to an increasing number of attacks which exploit their software vulnerabilities. We need a secure architectural design for cryptographic keys involved in both initial configuration (onboarding) and secure automatic updates of IoT devices. Low-level IoT devices have low computational capabilities and small memory size and are challenged to carry out desktop- and server-type public-key cryptographic operations, as needed for key establishment and authentication of software updates. We have designed and implemented a prototype to provide secure onboarding and update architecture and associated protocols for low-level IoT devices (8-bit). It uses elliptic curve cryptography (Curve25519), authenticated key establishment, and a known continuity-based key-locking mechanism that uses a public key embedded in current software image to verify the signature on software update. The design also addresses the scenario of transfer of update authority change.
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Copyright © 2019 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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- 2019
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gupta-onboardingandsoftwareupdatearchitecturefor.pdf | 2023-05-05 | Public | Download |