中国物理B ›› 2025, Vol. 34 ›› Issue (7): 70505-070505.doi: 10.1088/1674-1056/adca9f

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An enhanced fingerprint template protection scheme based on four-dimensional superchaotic system and dynamic DNA coding

Baiqiang Hu(胡百强)†, Jiahui Liu(刘嘉辉), and Zhe Liu(刘喆)   

  1. School of Computer Science and Technology, Harbin University of Science and Technology, Harbin 150006, China
  • 收稿日期:2025-02-06 修回日期:2025-04-03 接受日期:2025-04-09 出版日期:2025-06-18 发布日期:2025-07-07
  • 通讯作者: Baiqiang Hu E-mail:baiqianghu@gmail.com

An enhanced fingerprint template protection scheme based on four-dimensional superchaotic system and dynamic DNA coding

Baiqiang Hu(胡百强)†, Jiahui Liu(刘嘉辉), and Zhe Liu(刘喆)   

  1. School of Computer Science and Technology, Harbin University of Science and Technology, Harbin 150006, China
  • Received:2025-02-06 Revised:2025-04-03 Accepted:2025-04-09 Online:2025-06-18 Published:2025-07-07
  • Contact: Baiqiang Hu E-mail:baiqianghu@gmail.com

摘要: With the rapid development of Internet of things technology, the efficiency of data transmission between devices has been significantly improved. However, the open network environment also poses serious security risks. This paper proposes an innovative fingerprint template protection scheme, which generates key streams through an improved four-dimensional superchaotic system (4CSCS), uses the space-filling property of Hilbert curves to achieve pixel scrambling, and introduces dynamic DNA encoding to improve encryption. Experimental results show that this scheme has a large key space $2^{528}$, encrypts image information entropy of more than 7.9970, and shows excellent performance in defending against statistical attacks and differential attacks. Compared with existing methods, this scheme has significant advantages in terms of encryption performance and security, and provides a reliable protection mechanism for fingerprint authentication systems in the Internet of things environment.

关键词: four-dimensional superchaotic system, fingerprint template protection, Zernike moments, image encryption

Abstract: With the rapid development of Internet of things technology, the efficiency of data transmission between devices has been significantly improved. However, the open network environment also poses serious security risks. This paper proposes an innovative fingerprint template protection scheme, which generates key streams through an improved four-dimensional superchaotic system (4CSCS), uses the space-filling property of Hilbert curves to achieve pixel scrambling, and introduces dynamic DNA encoding to improve encryption. Experimental results show that this scheme has a large key space $2^{528}$, encrypts image information entropy of more than 7.9970, and shows excellent performance in defending against statistical attacks and differential attacks. Compared with existing methods, this scheme has significant advantages in terms of encryption performance and security, and provides a reliable protection mechanism for fingerprint authentication systems in the Internet of things environment.

Key words: four-dimensional superchaotic system, fingerprint template protection, Zernike moments, image encryption

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a
05.45.Gg (Control of chaos, applications of chaos)