A Verifiable Arbitrated Quantum Signature Scheme Based on Controlled Quantum Teleportation

• Published in: Entropy (Basel, Switzerland) Vol. 24; no. 1; p. 111
• Main Authors: Lu, Dianjun, Li, Zhihui, Yu, Jing, Han, Zhaowei
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 11.01.2022; MDPI
• Subjects: arbitrated quantum signature; Arbitration; Bell measurement; Bivariate analysis; Communication; controlled quantum teleportation; Cryptography; Digital signatures; Eavesdropping; Efficiency; Entangled states; Forgery; Information theory; Mathematical analysis; Polynomials; Protocol; Quantum entanglement; Quantum teleportation; Qubits (quantum computing); verifiability; von Neumann measurement; arbitrated quantum signature; controlled quantum teleportation; verifiability; Bell measurement; von Neumann measurement
• ISSN: 1099-4300; 1099-4300
• DOI: 10.3390/e24010111

In this paper, we present a verifiable arbitrated quantum signature scheme based on controlled quantum teleportation. The five-qubit entangled state functions as a quantum channel. The proposed scheme uses mutually unbiased bases particles as decoy particles and performs unitary operations on these decoy particles, applying the functional values of symmetric bivariate polynomial. As such, eavesdropping detection and identity authentication can both be executed. The security analysis shows that our scheme can neither be disavowed by the signatory nor denied by the verifier, and it cannot be forged by any malicious attacker.