Security of a kind of quantum secret sharing with entangled states

Autor: Tian-Yin Wang, Ying-Zhao Liu, Chun-Yan Wei, Xiao-Qiu Cai, Jian-Feng Ma

Médium: Article
Vydáno: Nature Portfolio 2017-05-01

Popis

Abstract We present a new collusion attack to a kind of quantum secret sharing schemes with entangled states. Using this attack, an unauthorized set of agents can gain access to the shared secret without the others’ cooperation. Furthermore, we establish a general model for this kind of quantum secret sharing schemes and then give some necessary conditions to design a secure quantum secret sharing scheme under this model.