公开(公告)号：US20140068765A1

公开(公告)日：2014-03-06

申请号：US12971853

申请日：2010-12-17

申请人： Jeong-Woon CHOI ,  Ku-Young CHANG ,  Tae-Gon NOH ,  Dong-Pyo CHI ,  Soo-Joon LEE

发明人： Jeong-Woon CHOI ,  Ku-Young CHANG ,  Tae-Gon NOH ,  Dong-Pyo CHI ,  Soo-Joon LEE

IPC分类号： H04L29/06

CPC分类号： H04L63/1416 ,  H04L9/0852

摘要： the present invention provides a method for authenticating a user in a multiparty quantum communication comprising: generating l quantum entangled states with N particles and transmitting each particle of the l quantum entangled states to N users, by a quantum communication server, wherein the N is a natural number larger than 2; determining, by the quantum communication server, whether a disguised attacker exists among N users on the basis of a first error rate calculated by using n quantum states randomly selected from the l quantum states possessed by the users respectively and a previously shared secret key in each of the users; and controlling, by the quantum communication server, each of the users to generate a new secret key using mk quantum states and replace the previously shared secret key with the new secret key.

摘要翻译： 本发明提供了一种用于在多方量子通信中认证用户的方法，包括：通过量子通信服务器产生1个N个粒子的量子纠缠状态和向N个用户发送1个量子纠缠状态的每个粒子，其中N是 自然数大于2; 由量子通信服务器根据从用户分别拥有的l个量子状态中随机选择的n个量子状态计算出的第一误差率和在每个用户中预先共享的密钥，确定N个用户之间是否存在伪装的攻击者 的用户; 并且由量子通信服务器控制每个用户以使用mk量子态生成新的秘密密钥，并用新的秘密密钥替换先前共享的密钥。