基于混沌密码系统的量子认证机制研究

In a practical quantum communication system, there exist many attack strategies such as the fake and cheating of identities, the forgery and tampering with the message, and so on. Thus it requires a reliable mechanism to guarantee security of quantum information by means of verifying the legitimacy of users' identities, or confirming the security, integrity, authenticity, controllability and usefulness of the data. The goal of this project is to investigate the operating mechanism of quantum authentication in chaotic quantum cryptosystem based on the combination technology of authentication, chaotic encryption algorithm and quantum communication system in order to avoid the counterfeit of illegal users and prevent the initial message from being forged and tampered with. Consequently, we are required to explore the operating mechanism of quantum authentication and the design of quantum authentication scheme based on the chaotic quantum encryption algorithms. The research contents include quantum identity authentication, quantum message authentication, quantum signature, and so on. We explore the effects of the operating mechanism of the quantum authentication on security and efficiency of chaotic quantum cryptosystem in the viewpoints of information theory and cryptography, respectively. Subsequently, we reveal the relationship of the operating mechanism and the actual control mechanism of quantum secure communication system based on quantum authentication in the chaotic quantum cryptosystem. The exploration and research of the operating mechanism of the quantum authentication in the chaotic quantum cryptosystem not only provide a potential approach for the protection of the transmitted message, but also can solve the problem of data control and access authorization. Hence it becomes an essential component of the quantum information security assurance infrastructure.

在量子通信系统中，各种用户身份的假冒与欺诈、消息的伪造与篡改等现象时常发生，为此需要构建量子安全通信机制，不但能验证合法用户身份，而且还能确保数据的机密性、完整性、真实性、可控性和可用性。鉴于上述情况，本课题拟基于认证技术、混沌加密算法与量子通信系统的融合机理，针对如何避免非法用户假冒和防止数据被篡改和伪造等攻击策略的问题探索基于混沌密码系统的量子认证机制，根据不同类型信息安全的需要，阐明量子通信系统的认证机理、方案设计、安全分析及其实验，内容包括量子身份认证、量子消息认证和量子签名等若干方面。本项目拟利用信息论和密码学的方法探索量子认证机制对量子通信系统的安全性能影响，揭示认证机制对量子通信系统的内在控制机理。在混沌密码系统中开展量子认证机制的探索与研究，不仅为量子通信系统的数据提供有效保护手段，还能解决量子通信过程中数据的控制和访问授权等问题，它是量子信息安全体系的重要组成部分。

本文围绕着认证技术，研究了混沌加密算法与量子通讯系统的融合机理，设计了基于混沌密码系统的量子认证机制。针对非法用户假冒和篡改、伪造数据等攻击策略，根据不同类型信息，安全的需要，阐明了量子通信系统的认证机理，方案设计，安全分析及验证模块。利用信息论和密码学的方法探索了量子认证机制对量子信息系统的安全性能影响。揭示了认证机制对量子通信系统的内在控制机理。项目成果具体如以下几个方面。第一：确保了数据的机密性，防止截断和窃听等策略对数据的直接攻击；第二：验证了用户身份，鉴定数据来源的真实性，防止假冒攻击；第三：确认了数据的完整性和可用性，避免篡改和伪造等攻击；第四：验证了数据来源和去处，确保数据的可控性，防止抵赖和否认等攻击。研究量子认证技术不仅为量子通信系统的数据提供了有效保护手段，而且有效解决了量子通信过程中数据的控制和访问授权等问题，是量子信息安全体系的重要组成部分。