Study on the Physical Unclonable Function of the Reliable Information Entropy Extracted by the Frequency Characteristic of Oscillating Ring

被引：4
|
作者：
Sun Ziwen [1 ,2 ]
Ye Qiao [1 ]
机构：
[1] Jiangnan Univ, Sch Internet Things, Wuxi 214122, Jiangsu, Peoples R China
[2] Minist Educ, Engn Res Ctr Internet Things Technol Applicat, Wuxi 214122, Jiangsu, Peoples R China
来源：
JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY | 2021年 / 43卷 / 01期
基金：
中国国家自然科学基金;
关键词：
FPGA; Physically Unclonable Function (PUF); Ring oscillator; Information entropy; Inverter; RO PUF; SECURITY;
D O I：
10.11999/JEIT191013
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：234 / 241
页数：8
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