基于量子密码的新型数字签名理论研究

Digital signature plays an important role in the area of information security, such as protection of data integrity and identity authentication. And it is also one of the core contents and hot topics in the research field of cryptography. The project aims to study the quantum digital signature and its application by combining the new technologies of quantum information and cryptography theory. This project mainly focuses on the following aspects: analyze the existing quantum signature protocols with the new quantum cryptography theory, explore the potential vulnerabilities and put forward some possible countermeasures and improvement strategies; study and resolve the problems of information disclosure in the quantum blind signature protocols during the process of blinding the message from the view of information theory; consider the application of combinatorial design and configuration in the discrimination of quantum states, based on which, design some novel quantum signature protocols that can realize the function of multi-signature and multi-verification. The achievement of this project will provide the theoretical foundation for the practical application of quantum digital signature; meanwhile, it will provide theoretical reference for the design and analysis of other relevant quantum cryptographic protocols.

数字签名在保护数据完整性和身份认证等信息安全领域有着极其重要的应用，是密码研究的核心内容和热点问题之一。本项目拟将量子信息新技术和密码理论相结合，研究量子数字签名及其应用的若干问题。主要研究以下几个方面的内容：利用量子密码新理论分析量子签名协议的安全性，探索潜在的安全漏洞，并给出对抗措施和改进策略；从信息论角度研究解决量子盲签名协议中消息盲化过程带来的信息泄露问题；研究组合数学中的设计构形在量子态区分中的应用，并设计可以实现多方签署、多人验证的量子签名协议。本项目的研究成果将为量子数字签名的实际应用提供理论支持，并为其他量子密码协议的设计和分析提供理论参考。

数字签名在保护数据完整性和身份认证等信息安全领域有着极其重要的应用，是密码研究的核心内容和热点问题之一。本项目拟将量子信息新技术和密码理论相结合，研究量子数字签名及其应用的若干问题。主要研究以下几个方面的内容：利用量子密码新理论分析量子签名协议的安全性，探索潜在的安全漏洞，并给出对抗措施和改进策略；从信息论角度研究解决量子盲签名协议中消息盲化过程带来的信息泄露问题；研究组合数学中的设计构形在量子态区分中的应用，并设计可以实现多方签署、多人验证的量子签名协议。本项目的研究成果将为量子数字签名的实际应用提供理论支持，并为其他量子密码协议的设计和分析提供理论参考。