Multilayer quantum secret sharing based on GHZ state and generalized Bell basis measurement in multiparty agents

摘要

Abstract A multilayer quantum secret sharing protocol based on GHZ state is proposed. Alice has the secret carried by quantum state and wants to distribute this secret to multiple agent nodes in the network. In this protocol, the secret is transmitted and shared layer by layer from root Alice to layered agents. The number of agents in each layer is a geometric sequence with a specific common ratio. By sharing GHZ maximally entangled states and making generalized Bell basis measurement, one qubit state can be distributed to multiparty agents and the secret is shared. Only when all agents at the last layer cooperate together, the secret can be recovered. Compared with other protocols based on the entangled state, this protocol adopts layered construction so that secret can be distributed to more agents with fewer particles GHZ state. This quantum secret sharing protocol can be used in wireless network to ensure the security of information delivery. Highlights ? A multilayer quantum secret sharing protocol based on GHZ state is proposed. ? Layered construction and fewer particles GHZ state are adopted in this protocol. ? The secret is transmitted and shared layer by layer from root Alice to layered agents. ? This QSS protocol can be used in wireless network to ensure the security of information delivery. ]]>