Welcome to the resource topic for 2016/896
Title:
Security Analysis of Anti-SAT
Authors: Muhammad Yasin, Bodhisatwa Mazumdar, Ozgur Sinanoglu, Jeyavijayan Rajendran
Abstract:Logic encryption protects integrated circuits (ICs) against intellectual property (IP) piracy and over- building attacks by encrypting the IC with a key. A Boolean satisfiability (SAT) based attack breaks all existing logic encryption technique within few hours. Recently, a defense mechanism known as Anti-SAT was presented that protects against SAT attack, by rendering the SAT-attack effort exponential in terms of the number of key gates. In this paper, we highlight the vulnerabilities of Anti-SAT and propose signal probability skew (SPS) attack against Anti-SAT block. SPS attack leverages the structural traces in Anti-SAT block to identify and isolate Anti-SAT block. The attack is 100% successful on all variants of Anti-SAT block. SPS attack is scalable to large circuits, as it breaks circuits with up to 22K gates within two minutes.
ePrint: https://eprint.iacr.org/2016/896
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