Cryptanalysis of secret sharing with a single d-level quantum system

In this work, we point out that the multiparty secret sharing protocol of Tavakoli et al. (Phys Rev A 92:030302, 2015 ) based on a single d -level quantum system (where d is a prime number) is insecure and low efficient. In our paper, we show that all the secrets of distributor R 1 can be stolen by...

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Bibliographic Details
Published in:Quantum information processing 2018-09, Vol.17 (9), p.1-11, Article 225
Main Authors: Chen, Xiu-Bo, Tang, Xin, Xu, Gang, Dou, Zhao, Chen, Yu-Ling, Yang, Yi-Xian
Format: Article
Language:English
Subjects:
Cryptography
Data Structures and Information Theory
Mathematical Physics
Physics
Physics and Astronomy
Quantum Computing
Quantum Information Technology
Quantum Physics
Quantum theory
Spintronics
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Summary:In this work, we point out that the multiparty secret sharing protocol of Tavakoli et al. (Phys Rev A 92:030302, 2015 ) based on a single d -level quantum system (where d is a prime number) is insecure and low efficient. In our paper, we show that all the secrets of distributor R 1 can be stolen by q dishonest participants with the probability ( q / N ) ξ . An important improvement is proposed to fix up this security loophole. Besides, another improvement is given to increase the efficiency from 1/ d to 1.
ISSN:1570-0755
1573-1332
DOI:10.1007/s11128-018-1988-5