叶乔1
1.江南大学物联网工程学院 无锡 214122
2.物联网技术应用教育部工程研究中心 无锡 214122
基金项目:国家自然科学基金(61373126)，江苏省自然科学基金(BK20131107)，中央高校基本科研业务费用专项资金(JUSRP51310A)
详细信息
作者简介:孙子文：女，1968年生，博士，教授，研究方向为模式识别、人工智能、无线传感网络理论与技术、信息安全
叶乔：男，1995年生，硕士生，研究方向为物理不可克隆函数及无线射频识别技术等
通讯作者:孙子文 sunziwen@jiangnan.edu.cn
中图分类号:TN911.7; TP331计量
文章访问数:1070
HTML全文浏览量:343
PDF下载量:46
被引次数:0
出版历程
收稿日期:2019-12-19
修回日期:2020-05-30
网络出版日期:2020-06-26
刊出日期:2021-01-15
Study on the Physical Unclonable Function of the Reliable Information Entropy Extracted by the Frequency Characteristic of Oscillating Ring
Ziwen SUN1, 2,,,Qiao YE1
1. School of Internet of Things, Jiangnan University, Wuxi 214122, China
2. Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Wuxi 214122, China
Funds:The National Natural Science Foundation of China (61373126), The Natural Science Foundation of Jiangsu Province (BK20131107), The Special Funds for Basic Scientific Research Expenses of Central Universities (JUSRP51310A)
摘要
摘要:针对传统物理不可克隆函数(PUF)产生信息熵少、易受环境因素干扰等问题，该文设计一种产生多位稳定信息熵的PUF方案。该方案通过对FPGA上环形震荡器所产生频率数据的分析，从每个震荡环中提取能够代表震荡环特性的特征位作为信息熵。通过对逆变器温度特性的研究，利用电流饥饿逆变器和常规逆变器组成新的震荡环来降低温度对产生的信息熵的可靠性的影响。通过Cadence IC仿真和进行赛灵思zynq 7000系列FPGA开发平台上的实验，结果表明改进的PUF结构使用相同数量的震荡环产生更多的信息熵，并且其可靠性、唯一性均得到提升。
关键词:FPGA/
物理不可克隆函数/
环形震荡器/
信息熵/
逆变器
Abstract:Considering the problem of information entropy being low and easily disturbed by environmental factors in the traditional Physical Unclonable Function (PUF), a PUF scheme is designed to generate multiple stable information entropy. By analyzing the frequency data generated by the ring oscillator on the FPGA, the feature bits representing the characteristics of the ring are extracted from each ring as information entropy. By studying the temperature characteristics of the inverter, a new oscillating ring is formed by the current hungry inverter and the conventional inverter to reduce the influence of temperature on the reliability of the generated information entropy. Through Cadence IC simulation and experiments on zynq7000 series FPGA development platform, the results show that the improved PUF structure can generate more information entropy with the same number of oscillatory rings, and its reliability and uniqueness are improved.
Key words:FPGA/
Physically Unclonable Function (PUF)/
Ring oscillator/
Information entropy/
Inverter
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