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In this paper, we propose a novel design of strong Physical Unclonable Function (PUF) leveraging the sneak paths in the resistive cross-point (X-point) array for device authentication. The entanglement of the sneak paths in the X-point array greatly enhances the entropy of the physical system, thereby increasing the space of challenge-response pairs (CRPs). “Digital” resistance distribution in X-point...
The physical unclonable function (PUF) is a promising innovative hardware security primitive that leverages the inherent randomness in the physical systems to produce unique responses upon the inquiry of challenges, thus the PUF could serve as a fingerprint for device authentication. In this paper, we propose a novel PUF implementation exploiting the sneak paths in the resistive cross-point (X-point)...
This work presents the optimized design of a physical unclonable function (PUF) primitive based on the cross-point resistive random access memory (RRAM) array. The randomness of the PUF comes from the resistance variation of RRAM cells in the array. A four-cell selection scheme is proposed to create a large number of challenge-response pairs necessary for achieving a high security level. To analyze...
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