Spin dice: A scalable truly random number generator based on spintronics
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概要
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Generation of practical random numbers (RNs) by a spintronics-based, scalable truly RN generator called “spin dice” was demonstrated. The generator utilizes the stochastic nature of spin-torque switching in a magnetic tunnel junction (MTJ) to generate RNs. We fabricated eight perpendicularly magnetized MTJs on a single-board circuit and generated eight sequences of RNs simultaneously. The sequences of RNs of different MTJs were not correlated with each other, and performing an exclusive OR (XOR) operation among them improved the quality of the RNs. The RNs obtained by performing a nested XOR operation passed the statistical test of NIST SP-800 with the appropriate pass rate.
- Institute of Physicsの論文
- 2014-07-25
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