【摘要】 分析了一次量子通信量子密钥分发(QKD)和认证(QA)协议存在的安全性漏洞,协议能抵抗截取/重发攻击策略和纠缠攻击策略,但不能抵抗纠缠/截取攻击策略.严格意义上说,在有信道噪声情况下,仅通过一次量子通信不能实现QKD和QA.根据原协议的条件,提出了2个新协议:1直接测量共享的GHZ态;2通过在原协议中加入检测过程以抵抗纠缠/截取攻击策略.更多还原

【Abstract】 This paper analyzed the security hole of a quantum key distribution and quantum authentication protocol through once quantum communication, which can withstand interception/resend attack strategy and entanglement attack strategy but can not resist the entanglement/interception attack strategy. Strictly speaking, only through once quantum communication, could not the QKD and QA protocol be achieved in the context of jammable channel. According to the conditions of the original protocol, two new protocols were proposed: one measures the shared GHZ states directly and the other adds a check process to resist the entanglement/interception attack strategy.更多还原