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This manuscript addresses a novel MRAM-based physically unclonable function (PUF). The PUF responses are generated using the unique energy-tilt, which is an outcome of the random geometric variations in the MRAM cells. We have verified relevant attributes of this PUF through extensive magnetic simulations and in-house fabrication results. Our fabricated PUF cells generate entropy as high as 0.99,...
In this paper we have proposed a novel MRAM based physically unclonable function (PUF) using the uncontrollable geometric variation in MRAM cells. The geometric variations generate a preferred ground state in every MRAM cell that we have used for the novel PUF. We have also analyzed the security properties of this PUF using a combination of simulation and fabrication methods. Results show an intra-distance...
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