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

Ziwen SUN; Qiao YE

doi:10.11999/JEIT191013

Volume 43 Issue 1

Jan. 2021

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Article Navigation > Journal of Electronics & Information Technology > 2021 > 43(1): 234-241

Ziwen SUN, Qiao YE. Study on the Physical Unclonable Function of the Reliable Information Entropy Extracted by the Frequency Characteristic of Oscillating Ring[J]. Journal of Electronics & Information Technology, 2021, 43(1): 234-241. doi: 10.11999/JEIT191013

Citation:

Ziwen SUN, Qiao YE. Study on the Physical Unclonable Function of the Reliable Information Entropy Extracted by the Frequency Characteristic of Oscillating Ring[J]. Journal of Electronics & Information Technology, 2021, 43(1): 234-241. doi: 10.11999/JEIT191013

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

doi: 10.11999/JEIT191013

Ziwen SUN^{1, 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)

Received Date: 2019-12-19
Rev Recd Date: 2020-05-30

Available Online: 2020-06-26

Publish Date: 2021-01-15

Abstract

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.
- FPGA,
- Physically Unclonable Function (PUF),
- Ring oscillator,
- Information entropy,
- Inverter

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References(21)

References

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