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Cryptography, Volume 6, Issue 2

2022 June - 17 articles

Cover Story: Split manufacturing is a countermeasure against hardware-level security threats such as IP piracy, overbuilding, and insertion of hardware Trojans. However, its security promise has been challenged by various fab-based attacks which exploit the working principles of design tools. In this work, we formally define the security of split manufacturing and advocate accordingly for a novel, formally secure paradigm. Inspired by the notion of logic locking, we protect designs by embedding secret keys that are completed at the undisclosed back-end-of-line interconnects—the keys become truly indecipherable to fab-based attackers. Our technique is competitive with prior techniques in terms of layout overheads. We also promote an alternative implementation strategy without the need for splitting at all. View this paper
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Cryptography - ISSN 2410-387X
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