Year: 2020
Type: article
Abstract: The era of widespread globalization has led to the emergence of hardware-centric security threats throughout the IC supply chain. Prior defenses like logic locking, layout camouflaging, and split manufacturing have been researched extensively to protect against intellectual property (IP) piracy at different stages. In this work, we presentdynamic camouflagingas a new technique to thwart IP reverse engineering at all stages in the supply chain, viz., the foundry, the test facility, and the end-user. Toward this end, we exploit the multi-functionality, post-fabrication reconfigurability, and run-time polymorphism of spin-based devices, specifically the magneto-electric spin-orbit (MESO) device. Leveraging these unique properties,dynamic camouflagingis shown to be resilient against state-of-the-art analytical SAT-based attacks and test-data mining attacks. Such dynamic reconfigurability is not afforded in CMOS owing to fundamental differences in operation. For such MESO-based camouflaging, we also anticipate massive savings in power, performance, and area over other spin-based camouflaging schemes, due to the energy-efficient electric-field driven reversal of the MESO device. Based on thorough experimentation, we outline the promises ofdynamic camouflagingin securing the supply chain end-to-end along with a case study, demonstrating the efficacy ofdynamic camouflagingin securing error-tolerant image processing IP.
Language: English
Subfield: Hardware and Architecture
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2901577388