基于QSA的量子密钥协商协议内部攻击分析  

Internal Attack Analysis of Quantum Key Agreement Protocol Based on Quantum Search Algorithm

作　　者：吕博宇 张劼[1] LüBoyu;ZHANG Jie(School of Science,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]北京邮电大学理学院,北京100876

出　　处：《北京邮电大学学报》2022年第3期64-68,80,共6页Journal of Beijing University of Posts and Telecommunications

基　　金：中央高校基本科研业务费专项资金项目(2019XD-A01);国家自然科学基金项目(61976024,61972048)。

摘　　要：量子密钥协商(QKA)是量子密码学的一个重要分支,公平性和安全性是其需要满足的两个关键要求。然而在QKA协议的设计过程中,公平性并没有引起足够的重视。近期有学者提出了一种基于量子搜索算法(QSA)的QKA协议。通过利用贝尔态的纠缠性质对该协议进行内部攻击分析,发现第1个参与者可以在不被接收者检测到的前提下操控最终的共享密钥,即该协议不满足QKA协议公平性的要求。为设计更加安全、公平的QKA协议提供思路。Quantum key agreement(QKA)is an important branch of quantum cryptography.Fairness and security are two key requirements of QKA.However,the fairness has not been attracted enough attention in the design of QKA protocol.Some scholars recently proposed a quantum search algorithm(QSA)QKA protocol.Through the internal attack analysis of the protocol by using the entangling nature of state,it is found that the first participant can manipulate the final shared key without being detected by the receiving party.This means the protocol does not meet the requirement of fairness of QKA protocol.It sheds some light on designing more secure and fairer QKA protocol.

关 键 词：量子密钥协商协议 量子搜索算法 内部攻击 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]