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Quantum Information Processing

A d-level quantum secret sharing scheme with cheat-detection (t, m) threshold

Deepa Rathi, Sanjeev Kumar

Published Apr 28, 2023• 28 citations
Publisher
DOI
10.1007/s11128-023-03928-z

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(ttt, nnn) Threshold Quantum Secret Sharing based on a Single ddd-level Quantum System
A (ttt, nnn) threshold quantum secret sharing (QSS) is proposed based on a single ddd-level quantum system. It enables the (ttt, nnn) threshold structure based on Shamir's secret sharing and simply requires sequential communication in the ddd-level quantum system to recover secret. Besides, the scheme employs an additional qudit to detect cheats and eavesdropping during secret reconstruction, and allows a participant to use the share repeatedly. Analyses show that the proposed scheme is resistant to typical attacks. The scheme is scalable in the number of participants and easier to realize compared to related schemes. More generally, our scheme also presents a generic method to construct new (ttt, nnn) threshold QSS schemes based on ddd-level quantum system with other classical threshold secret sharing.