Efficient multiuser quantum cryptography network based on entanglement
Peng Xue, Kunkun Wang, Xiaoping Wang · Scientific Reports · 2017
We present an efficient quantum key distribution protocol with a certain entangled state to solve a special cryptographic task. Also, we provide a proof of security of this protocol by generalizing the proof of modified of Lo-Chau scheme. Based on this two-user scheme, a quantum cryptography network protocol is proposed without any quantum memory.