Protecting integrated circuits from piracy with test-aware logic locking.

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ICCAD '14 Proceedings of the 2014 IEEE/ACM International Conference on Computer-Aided Design. 2014 Nov 03;:262-269. doi: 10.1109/ICCAD.2014.7001361

Protecting integrated circuits from piracy with test-aware logic locking. FlyEMScientific Computing Software

Plaza SM, Markov IL

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Abstract

The increasing IC manufacturing cost encourages a business model where design houses outsource IC fabrication to remote foundries. Despite cost savings, this model exposes design houses to IC piracy as remote foundries can manufacture in excess to sell on the black market. Recent efforts in digital hardware security aim to thwart piracy by using XOR-based chip locking, cryptography, and active metering. To counter direct attacks and lower the exposure of unlocked circuits to the foundry, we introduce a multiplexor-based locking strategy that preserves test response allowing IC testing by an untrusted party before activation. We demonstrate a simple yet effective attack against a locked circuit that does not preserve test response, and validate the effectiveness of our locking strategy on IWLS 2005 benchmarks.

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Protecting integrated circuits from piracy with test-aware logic locking.

Abstract

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