Spin dice: A scalable truly random number generator based on spintronics

被引：180

作者：

Fukushima, Akio ^{[1
]}

Seki, Takayuki ^{[1
]}

Yakushiji, Kay ^{[1
]}

Kubota, Hitoshi ^{[1
]}

Imamura, Hiroshi ^{[1
]}

Yuasa, Shinji ^{[1
]}

Ando, Koji ^{[1
]}

机构：

[1] Spintron Res Ctr, Natl Inst Adv Ind Sci & Technol AIST, Tsukuba, Ibaraki 3058568, Japan

来源：

APPLIED PHYSICS EXPRESS | 2014年 / 7卷 / 08期

关键词：

MAGNETIC TUNNEL-JUNCTIONS; RANDOM BIT GENERATION; SEMICONDUCTOR-LASERS;

D O I：

10.7567/APEX.7.083001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 2014 The Japan Society of Applied Physics

引用

页数：4

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