  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.
