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The promise of strong physical unclonable functions (PUF) is to utilize the manufacturing variations of circuit elements to produce an independent and unpredictable response to any input challenge vector. Attacks on PUFs that predict the responses to input challenge vectors offer an interesting research problem. An attacking approach based on the optimization theory and side-channel information is...
Logic locking is a technique that has been proposed to thwart IC counterfeiting and overproduction by untrusted foundry. Recently, the security of logic locking is threatened by a new attack called SAT attack, which can effectively decipher the correct key of most logic locking techniques. In this paper, we propose a new technique called delay locking to enhance the security of existing logic locking...
Physical unclonable functions (PUFs) utilize manufacturing variations of circuit elements to produce unpredictable response to any challenge vector. The attack on PUF aims to predict the PUF response to all challenge vectors while only a small number of challenge-response pairs (CRPs) are known. The target PUFs in this paper include the Arbiter PUF (ArbPUF) and the Memristor Crossbar PUF (MXbarPUF)...
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