Efficient multiparty quantum secret sharing scheme using single qudit

Abstract

Abstract Quantum secret sharing as one of most promising component of quantum cryptograph aims at a one-to-multiparty secret communication based on principles of quantum mechanics. In this paper, an efficient multiparty quantum secret sharing protocol in high-dimensional quantum system using single qudit is proposed. Each participant’s shadow is encoded on single qudit via method of measuring basis encrypted, which avoids the waste of qudits arising from basis reconciliation. Security analysis indicates that the proposed protocol is immune to general attacks such as measure-resend attack, entangle-and-measure attack and Trajon horse attack. Compared to former protocols, the proposed protocol only need performing the single-qudit measurement operation and can share the predetermined dits instead of random bits or dits.