Multiparty Information Delay Protocol Using Open-Destination Teleportation

In this paper a multiparty information delay protocol using open-destination teleportation is present. By sharing entangled four-particle quantum systems one person can give the other three persons some information which cannot be read until he or she lets them do. The principles of quantum mechanics guarantees the unconditional security of the protocol. When the one decides to let the other three get the information, he or she need only to send some dictates through a public classical channel. So the protocol is easier to carry out and it is more robust in practice.