A high-speed true random number generator based on Ag/SiNx/n-Si memristor

IF 6.5 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Frontiers of Physics Pub Date : 2023-12-01 DOI:10.1007/s11467-023-1331-1

Xiaobing Yan, Zixuan Zhang, Zhiyuan Guan, Ziliang Fang, Yinxing Zhang, Jianhui Zhao, Jiameng Sun, Xu Han, Jiangzhen Niu, Lulu Wang, Xiaotong Jia, Yiduo Shao, Zhen Zhao, Zhenqiang Guo, Bing Bai

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引用次数: 0

Abstract

The intrinsic variability of memristor switching behavior can be used as a natural source of randomness, this variability is valuable for safe applications in hardware, such as the true random number generator (TRNG). However, the speed of TRNG is still be further improved. Here, we propose a reliable Ag/SiN_x/n-Si volatile memristor, which exhibits a typical threshold switching device with stable repeat ability and fast switching speed. This volatile-memristor-based TRNG is combined with nonlinear feedback shift register (NFSR) to form a new type of high-speed dual output TRNG. Interestingly, the bit generation rate reaches a high speed of 112 kb/s. In addition, this new TRNG passed all 15 National Institute of Standards and Technology (NIST) randomness tests without post-processing steps, proving its performance as a hardware security application. This work shows that the SiN_x-based volatile memristor can realize TRNG and has great potential in hardware network security.

Abstract Image

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基于Ag/SiNx/n-Si忆阻器的高速真随机数发生器

忆阻器开关行为的内在可变性可以作为随机性的自然来源，这种可变性对于硬件中的安全应用是有价值的，例如真随机数发生器(TRNG)。但是，TRNG的速度还有待进一步提高。本文提出了一种可靠的Ag/SiNx/n-Si易失性忆阻器，它具有稳定的重复能力和快速的开关速度，是典型的阈值开关器件。这种基于易失性忆阻器的TRNG与非线性反馈移位寄存器(NFSR)相结合，形成了一种新型的高速双输出TRNG。有趣的是，比特生成速率高达112 kb/s。此外，这个新的TRNG在没有后处理步骤的情况下通过了所有15项美国国家标准与技术研究所(NIST)的随机性测试，证明了其作为硬件安全应用程序的性能。研究表明，基于sinx的易失性忆阻器可以实现TRNG，在硬件网络安全方面具有很大的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frontiers of Physics PHYSICS, MULTIDISCIPLINARY-

CiteScore

9.20

自引率

9.30%

发文量

898

审稿时长

6-12 weeks

期刊介绍： Frontiers of Physics is an international peer-reviewed journal dedicated to showcasing the latest advancements and significant progress in various research areas within the field of physics. The journal's scope is broad, covering a range of topics that include: Quantum computation and quantum information Atomic, molecular, and optical physics Condensed matter physics, material sciences, and interdisciplinary research Particle, nuclear physics, astrophysics, and cosmology The journal's mission is to highlight frontier achievements, hot topics, and cross-disciplinary points in physics, facilitating communication and idea exchange among physicists both in China and internationally. It serves as a platform for researchers to share their findings and insights, fostering collaboration and innovation across different areas of physics.