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Novel Quantum Virtual Private Network Scheme for PON via Quantum Secure Direct Communication
Authors:Li-Hua Gong  Ye Liu  Nan-Run Zhou
Affiliation:1. Department of Electronic Information Engineering, Nanchang University, Nanchang, 330031, China
2. Information Security Center, Beijing University of Posts and Telecommunications, Beijing, 100876, China
Abstract:Two quantum secure direct communication (QSDC) protocols with quantum identification (QI) based on passive optical network (PON) architecture are proposed. One QSDC protocol can be implemented between two different optical network units just with simple configurations of PON by optical line terminal when they are in the same virtual private network after optical line terminal performing QI to the optical network units in the given PON architecture. The other QSDC protocol is also implemented between any two legitimated users in the virtual private network but with considerable reduction of workload of the optical line terminal. The security analysis shows that the proposed QSDC schemes with quantum identification are unconditionally secure and allow the legitimate users to exchange their secret information efficiently and to realize a quantum virtual private network in the PON networks ultimately.
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