Advance sharing of quantum shares for classical secrets

TL;DR

This paper introduces a quantum secret sharing scheme that enhances the flexibility and efficiency of distributing shares of classical secrets, surpassing classical methods in capabilities and pre-distribution features.

Contribution

It presents a novel quantum secret sharing scheme that allows pre-distribution of shares and more flexible access structures, improving upon classical secret sharing limitations.

Findings

Quantum secret sharing enables pre-distribution of shares.

The proposed scheme offers more flexible access structures.

It achieves higher efficiency than classical secret sharing.

Abstract

Secret sharing schemes for classical secrets can be classified into classical secret sharing schemes and quantum secret sharing schemes. Classical secret sharing has been known to be able to distribute some shares before a given secret. On the other hand, quantum mechanics extends the capabilities of secret sharing beyond those of classical secret sharing. We propose quantum secret sharing with the capabilities in designing of access structures more flexibly and realizing higher efficiency beyond those of classical secret sharing, that can distribute some shares before a given secret.