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The urgent requests to protection integrated circuits (IC) and hardware intellectual properties (IP) have led to the development of various logic obfuscation methods. While most existing solutions focus on the combinational logic or sequential logic with full scan-chains, in this paper, we will revisit the security of sequential logic obfuscation within circuits where full scan-chains are not available...
In today's diversified semiconductor supply-chain, protecting intellectual property (IP) and maintaining manufacturing integrity are important concerns. Circuit obfuscation techniques such as logic encryption and IC camouflaging can potentially defend against a majority of supply-chain threats such as stealthy malicious design modification, IP theft, overproduction, and cloning. Recently, a Boolean...
The advancing of reverse engineering techniques has complicated the efforts in intellectual property protection. Proactive methods have been developed recently, among which layout-level IC camouflaging is the leading example. However, existing camouflaging methods are rarely supported by provably secure criteria, which further leads to over-estimation of the security level when countering the latest...
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