Annular multi-party semi-quantum secret sharing method based on d-level single-particle state

Abstract

The semi-quantum secret sharing concept is popularized to a d-level quantum system, and the annular multi-party semi-quantum secret sharing method based on the d-level single-particle state is provided. In the method provided by the invention, the particles prepared by the quantum party are transmitted in an annular manner, and the classical party does not need to have the measurement capability.The method disclosed by the invention is safe to some famous attacks, such as intercept-resend attack, a measure-resend attack, an entangle-measure attack and a participant attack..

Description

technical field [0001] The invention relates to the field of quantum cryptography. The invention designs a ring-shaped multi-party semi-quantum secret sharing method based on a d-level single particle state, and realizes sharing a secret between one party and n parties. Background technique [0002] The security of classical cryptography depends on the computational complexity of mathematical problems, which is vulnerable to the powerful computing power of quantum parallel computing. Fortunately, the quantum cryptography invented by Bennett and Brassard[1] in 1984 relies on the laws of quantum mechanics to ensure its unconditional security in theory. Quantum cryptography has attracted a lot of attention and established many interesting branches, such as quantum key distribution (Quantum key distribution, QKD) [1-7], quantum secure direct communication (Quantum secure direct communication, QSDC) [8-11] , Quantum secret sharing (Quantum secretsharing, QSS) [12-24] and so on....

AI Technical Summary

Problems solved by technology

However, all existing SQSS methods are only applicable to two-level quantum systems

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