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24 August 2020 Energy-efficient hardware cryptography with domain-wall motion spintronics
Haimabati Dey, Peter Bermel
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Proceedings Volume 11470, Spintronics XIII; 114703O (2020) https://doi.org/10.1117/12.2568374
Event: SPIE Nanoscience + Engineering, 2020, Online Only
Abstract
We propose a dual-spin-bit Physically Unclonable Function for securing Internet-of-Things(IoT) from geometry variations of magnetic thin-films embedded inside IoT devices. Such structure-dependent device-specific keys serve for authentication,identification and privacy preservation of users against Identity theft, side-channel attacks and remote hacking in IoT networks. In our design,electrically tunable magnetic domain wall motion of the thin-films produces device-geometry sensitive spin-transfer-torque response, providing path for device-specific memory-based Spintronic Physically Unclonable key generations.An array of such magnetic films with each film containing memristive spin-bit act as the building block of spin-torque driven cryptographic logic circuits for the IoT devices.
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Haimabati Dey and Peter Bermel "Energy-efficient hardware cryptography with domain-wall motion spintronics", Proc. SPIE 11470, Spintronics XIII, 114703O (24 August 2020); https://doi.org/10.1117/12.2568374
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KEYWORDS
Spintronics
Cryptography
Thin films
Magnetism
Information security
Stochastic processes
Switching
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