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Quantum Information Processing

Cryptanalysis of multiparty quantum digital signatures

  • 01-08-2019
Published in:
Authors
Xiao-Qiu Cai
Tian-Yin Wang
Chun-Yan Wei
Fei Gao
Published in
Quantum Information Processing | Issue 8/2019

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Abstract

Multiparty quantum digital signatures play an important role in quantum networks which sign and distribute message among users with information-theoretic security. In this work, we give a cryptanalysis of a multiparty quantum digital signature scheme and then propose a new attacks strategy, whereby dishonest participants can frame an honest participant if they collude with each other. To prevent the framing attack, we study the relations between the signing key and each verification key, as well as the relations among different verification keys in this scheme, and then give the security requirements on the relations among different keys, which is also very useful for the next development of multiparty quantum digital signature schemes. Finally, we present a possible way to solve the security problem.

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previous article Multi-party quantum key agreement with four-qubit cluster states
next article Performance improvement of free-space continuous-variable quantum key distribution with an adaptive optics unit
Title
Cryptanalysis of multiparty quantum digital signatures
Authors
Xiao-Qiu Cai
Tian-Yin Wang
Chun-Yan Wei
Fei Gao
Publication date
01-08-2019
Publisher
Springer US
Published in
Quantum Information Processing / Issue 8/2019
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-019-2365-8
This content is only visible if you are logged in and have the appropriate permissions.

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