Chin. Phys. Lett.  2017, Vol. 34 Issue (1): 018401    DOI: 10.1088/0256-307X/34/1/018401
CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
True Random Number Generator Realized by Extracting Entropy from a Negative-Inductance Superconducting Quantum Interference Device
Hao Li, Jian-She Liu**, Han Cai, Ying-Shan Zhang, Qi-Chun Liu, Gang Li, Wei Chen
Tsinghua National Laboratory for Information Science and Technology, Department of Microelectronics and Nanoelectronics, Institute of Microelectronics, Tsinghua University, Beijing 100084
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Hao Li, Jian-She Liu, Han Cai et al  2017 Chin. Phys. Lett. 34 018401
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Abstract A new type of superconductive true random number generator (TRNG) based on a negative-inductance superconducting quantum interference device (nSQUID) is proposed. The entropy harnessed to generate random numbers comes from the phenomenon of symmetry breaking in the nSQUID. The experimental circuit is fabricated by the Nb-based lift-off process. Low-temperature tests of the circuit verify the basic function of the proposed TRNG. The frequency characteristics of the TRNG have been analyzed by simulation. The generation rate of random numbers is expected to achieve hundreds of megahertz to tens of gigahertz.
Received: 18 October 2016      Published: 29 December 2016
PACS:  84.30.Ng (Oscillators, pulse generators, and function generators)  
  85.25.Dq (Superconducting quantum interference devices (SQUIDs))  
  85.25.Am (Superconducting device characterization, design, and modeling)  
Fund: Supported by the State Key Program for Basic Research of China under Grant No 2011CBA00304, the National Natural Science Foundation of China under Grant No 60836001, and the Tsinghua University Initiative Scientific Research Program under Grant No 20131089314.
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https://cpl.iphy.ac.cn/10.1088/0256-307X/34/1/018401       OR      https://cpl.iphy.ac.cn/Y2017/V34/I1/018401
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Hao Li
Jian-She Liu
Han Cai
Ying-Shan Zhang
Qi-Chun Liu
Gang Li
Wei Chen
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