Lightweight Mediated Semi-Quantum Secret Sharing Protocol
This addresses security and practicality issues in quantum communication for classical users, but it is incremental as it builds on existing semi-quantum protocols.
The study tackled the problem of semi-quantum secret sharing protocols requiring a quantum dealer and Trojan Horse detectors by proposing a mediated protocol that allows a classical dealer to share secrets with classical agents using a dishonest third-party, achieving lightweight and practical improvements.
Due to the exiting semi-quantum secret sharing protocol have two challenges including (1) the dealer must be the quantum user, and (2) the classical users must equip with the Trojan Horse detectors, this study wants to propose a novel mediate semi-quantum secret sharing (MSQSS) protocol to let a classical dealer can share his/her secrets to the classical agents with the help of a dishonest third-party (TP). The proposed MSQSS protocol adopts the one-way quantum communication and thus it is free from the Trojan Horse attacks. Furthermore, the security analysis is given for proving that the proposed protocol can be against the collective attack. Comparing to the exiting SQSS protocols, the proposed MSQSS protocol is more lightweight and more practical.