Chinese Journal of Network and Information Security ›› 2021, Vol. 7 ›› Issue (4): 1-17.doi: 10.11959/j.issn.2096-109x.2021079

• Comprehensive Review •     Next Articles

Survey of code-based digital signatures

Yongcheng SONG1,2, Xinyi HUANG1, Wei WU3, Haixia CHEN1   

  1. 1 Fujian Provincial Key Laboratory of Network Security and Cryptology, College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China
    2 State Key Laboratory of Cryptology, Beijing 100878, China
    3 School of Mathematics and Statistics, Fujian Normal University, Fuzhou 350117, China
  • Revised:2021-06-10 Online:2021-08-15 Published:2021-08-01
  • Supported by:
    TheNational Natural Science Foundation of China(62032005);Science Foundation of Fujian Provincial Science and Technology Agency(2020J02016);State Key La-boratory of Cryptology Research Fund(MMKFKT202008)

Abstract:

The rapid development of quantum computing theory and practice brings great uncertainty to the security of cryptography based on hard problems in number theory.Code-based hard problem is recognized as NP-complete problem, the complexity increases exponentially, and there is currently no threat of quantum computing to code-based cryptographic algorithm.Therefore, code-based algorithm can resist the quantum algorithm attack, which is one of the main directions of quantum-resistant cryptography.It is still an open problem to design secure and efficient code-based signatures.For many years, international researchers use classical and new methods to construct code-based signatures, but existing constructions are weak in security or poor in performance.Code-based signatures were comprehensively summarized and analyzed, and future research directions were indicated.

Key words: quantum-resistant cryptography, code-based cryptography, digital signatures, identification

CLC Number: 

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