Sender-controlled measurement-device-independent multiparty quantum communication

Multiparty quantum communication is an important branch of networks. It enables private information transmission with information-theoretic security among legitimate parties. We propose a sender-controlled measurement-device-independent multiparty protocol. The sender Alice divides message into several parts and delivers them to different receivers for secret sharing imperfect measurement devices untrusted ancillary nodes. Furthermore, acts as active controller checks the channels reliability each receiver before she encodes her sharing, which makes protocol convenient multiparity communication.