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Due to globalization of integrated circuit (IC) design flow, rogue elements in the supply chain can pirate ICs, overbuild ICs, and insert hardware Trojans. EPIC locks the design by randomly inserting additional gates; only a correct key makes the design to produce correct outputs. We demonstrate that an attacker can decipher the locked netlist, in a time linear to the number of keys, by sensitizing...
Logic locking is an Intellectual Property (IP) protection technique that thwarts IP piracy, hardware Trojans, reverse engineering, and IC overproduction. Researchers have taken multiple attempts in breaking logic locking techniques and recovering its secret key. A Boolean Satisfiability (SAT) based attack has been recently presented that breaks all the existing combinational logic locking techniques...
Logic encryption has been a popular defense against Intellectual Property (IP) piracy, hardware Trojans, reverse engineering, and IC overproduction. It protects a design from these threats by inserting key-gates that break the functionality when controlled by wrong keys. Researchers have taken multiple attempts in breaking logic encryption and leaking its secret key, while they also proposed difficult-to-break...
Integrated circuit (IC) camouflaging is a layout-level technique that thwarts reverse engineering attacks on ICs by introducing camouflaged cells that look alike, but can implement one of many possible Boolean functions. Existing camouflaging techniques have been broken by a recent decamouflaging attack, which uses Boolean satisfiability (SAT) techniques to compute specialized discriminating input...
The globalization of IC design has resulted in security vulnerabilities and trust issues such as piracy, overbuilding, reverse engineering and Hardware Trojans. Logic locking and IC camouflaging are two techniques that help thwart piracy and reverse engineering attacks by making modifications at the netlist level and the layout level, respectively. In this paper, we analyze the similarities and differences...
Logic encryption has recently gained interest as a countermeasure against IP piracy and reverse engineering attacks. A secret key is used to lock/encrypt an IC such that the IC will not be functional without being activated with the correct key. Existing attacks against logic encryption are of theoretical and/or algorithmic nature. In this paper, we evaluate for the first time the security of logic...
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