Quantum Authentication Based on the Lengthened String Scheme
Fen-Zhuo Guo, Fen-zhuo, Wen , Qiaoyan, Zhu, Fu-chen · 中国邮电高校学报：英文版 · 2004
Assuming there is a shared string between the users, we present a novel scheme, the lengthened string scheme (LSS), where the shared string is lengthened firstly by a specially designed algorithm, then some special treatments are applied on the lengthened one before it is used to authenticate. Based on the lengthened string scheme (LSS) we propose a quantum authentication protocol using entanglements. And the robustness of our protocol is discussed. In fact all the quantum key distribution protocols can do identification simultaneously based on the LSS.