基于亚稳态叠加单元的高吞吐量真随机数发生器设计  

Design of High Throughput True Random Number Generator Based on Metastability Superposition Cells

作　　者：倪天明 俞俊勇 彭青松 聂牧 NI Tianming;YU Junyong;PENG Qingsong;NIE Mu(School of Integrated Circuits,Anhui Polytechnic University,Wuhu 241000,China;Anhui Engineering Research Center of Vehicle Display Integrated Systems,Wuhu 241000,China;Anhui Province Joint Key Laboratory of Touch Display Materials and Devices,Wuhu 241000,China;School of Microelectronics,Hefei University of Technology,Hefei 230000,China)

机构地区：[1]安徽工程大学集成电路学院,芜湖241000 [2]安徽省车载显示集成系统工程研究中心,芜湖241000 [3]触控显示材料与器件安徽省联合共建学科重点实验室,芜湖241000 [4]合肥工业大学微电子学院,合肥230000

出　　处：《电子与信息学报》2024年第5期2289-2297,共9页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(62174001,62274052,61974001,62311540021);安徽省自然科学基金(2208085J02);安徽省重点研发(202104b11020032);安徽省高校优秀科研创新团队(2022AH010059);安徽省教育厅杰出青年学者基金(2022AH020014)。

摘　　要：真随机数发生器(TRNG)作为一类重要的硬件安全原语,在密钥生成、初始化向量和协议中的身份认证等加密领域得到应用。为设计出高吞吐量的轻量级TRNG,该文研究了利用多路选择器(MUX)和异或门(XOR gate)的开关特性来产生亚稳态的方法,提出一种基于亚稳态叠加单元(MS-cell)的TRNG(MS-TRNG)设计。它将MUX和异或门触发的亚稳态进行叠加,从而提高TRNG的熵。所提TRNG分别在Xilinx Virtex-7和Xilinx Artix-7 FPGA开发板中实现,无需后处理电路。与其他先进的TRNG相比,所提TRNG具有最高的吞吐量和极低的硬件开销,并且它所生成的随机序列通过了NIST测试和一系列性能测试。True Random Number Generator(TRNG),as an important hardware security primitive,is used in key generation,initialization vector and identity authentication in protocols.In order to design a lightweight TRNG with high throughput,the method of generating metastability is studied by using the switching characteristics of MUltipleXer(MUX)and XOR gate,and a TRNG design based on Metastability Superposition(MS-TRNG)cell(MS-cell)is proposed.It superimposes MUX and XOR gate guided metastases,thereby increasing the entropy of TRNG.The proposed TRNG is implemented in Xilinx Virtex-7 and Xilinx Artix-7 FPGA development boards,respectively,without the need for post-processing circuits.Compared to other advanced TRNGS,the proposed TRNG has the highest throughput and extremely low hardware overhead,and the random sequences it generates pass NIST testing and a series of performance tests.

关 键 词：真随机数发生器 熵源叠加 亚稳态 吞吐量 

分 类 号：TN402[电子电信—微电子学与固体电子学]