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- Title
Cryptanalysis and improvement of a controlled quantum secure direct communication with authentication protocol based on five-particle cluster state.
- Authors
Yang, Chun-Wei; Lin, Jason; Wang, Kai-Lin; Tsai, Chia-Wei
- Abstract
Information security and identity authentication are both critical in communication. Authentication allows the receiver to receive (quantum) information and confirm the sender's identity. In 2019, Zheng and Long designed an improved version of Zhong et al. controlled quantum secure direct communication with authentication (CQSDCA) protocol, which uses the five-particle cluster state and an exclusive-or (XOR) operation. This protocol ensures data transfer security by including authentication and control phases. However, it was found in this study that the improved CQSDCA protocol has two weaknesses: (1) an external attacker may impersonate the sender, and (2) an external attacker could modify the messages sent by the sender. To solve these problems, we designed a protocol that uses part of a pre-shared key to determine particle sequence ordering and utilizes the computation of hash functions for identity authentication. These improvements prevent modification and impersonation attacks by an external attacker, thus improving the security of the CQSDCA protocol.
- Subjects
QUANTUM cryptography; CRYPTOGRAPHY; DATA security; INFORMATION technology security; PROBLEM solving; IMPERSONATION
- Publication
Quantum Information Processing, 2023, Vol 22, Issue 5, p1
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-023-03956-9