论文部分内容阅读
密码分析和密码设计是密码学的两个分支,它们相辅相成,共同推动密码学的发展.量子密码也是如此.然而与经典密码相比,目前量子密码中的密码分析工作还远远不够.本文介绍了多种常见的量子密码攻击方法的基本原理和过程,包括截获-测量-重发攻击、关联提取攻击、假信号攻击、纠缠附加粒子攻击、被动攻击、拒绝服务攻击等,并对部分攻击方法给出了具体攻击方案.纠缠附加粒子攻击是最具一般性的分析方法,截获-测量-重发攻击、假信号攻击等都可以看作是这种攻击的特例.论文概括了有效的检测窃听策略,如共轭基测量、分步传输-步步检测等,并建议明确各类协议的安全性标准,结合自身特点分析其安全性.如多方量子密码协议中要重点分析参与者攻击,而量子安全直接通信中则要注意蛮力攻击.最后论文指出了量子密码分析未来的发展方向.
Cryptanalysis and password design are the two branches of cryptography, they complement each other, and jointly promote the development of cryptography.Quantum cryptography as well.However, compared with the classic password, cryptanalysis in the current quantum cryptography is far from enough. The basic principles and processes of several common quantum cryptography methods are summarized, including interception-measurement-retransmission attack, association extraction attack, glitch attack, entanglement additional particle attack, passive attack, denial of service attack and so on. The specific attack scheme is given.The entanglement of additional particle attack is the most general analysis method, and interception-measurement-reissue attack and glitch attack can both be regarded as special cases of such attacks.The paper summarizes the effectiveness of detection and eavesdropping Strategies such as conjugate measurement, step-by-step transmission - step-by-step detection, etc. It is also suggested to define the security standards of various protocols and to analyze their own security according to their own characteristics, for example, multi-party quantum cryptography should focus on participant attacks, In the direct communication of quantum safety, we should pay attention to the brute force attack.Finally, the paper points out the future development of quantum cryptanalysis.