基于密码分析的新型保密光接入及关键技术研究

随着网络环境日趋复杂和计算能力指数级提升，则传统密码体制存在被破解的安全风险。因此，光接入网物理层保密技术被视为极具应用潜力的安全增强策略之一，但可证明安全性是其从理论研究走向实际应用的关键所在。本项目拟提出密码分析下的压缩混沌高效保密光接入方法，旨在解决光接入网物理层高效保密缺乏可证明安全性问题。本项目将重点从以下几方面开展创新性的工作：（1）对光接入网保密通信算法实施密码分析，揭露其中存在的安全缺陷并提出安全高效保密算法遵循的原则；（2）基于密码分析研究基础，研究面向光接入网的联合压缩混沌高效保密通信机制；（3）从密码视角建立光接入网高效保密算法综合评估模型，研究其攻击能力、密钥和加密安全分析等可证明安全性指标。研究目标是在光接入网安全理论与技术上取得自主创新成果，致使达到或超过国际先进水平，促进我国保密光接入技术可持续快速发展。

With the increasing complexity of network environment and the improvement of computing capability, the traditional cryptosystem has the security risk of being cracked. Therefore, the optical access network physical layer security technology is regarded as one of potential security enhancement strategies, but it can be proved that security is the key to its application from theoretical research. In order to solve the problem of lack of provable security in the physical layer of optical access network, this project proposes a compressed choas based efficient secure optical access method based on cryptanalysis. This project focus on the following aspects of innovative work: (1) implement cryptanalysis on the optical access network secure communication algorithm, expose the security defects and put forward the principles followed by the secure and efficient secure communication algorithm; (2) based on the research foundation of cryptanalysis, study the joint compression chaotic and efficient secure communication mechanism for optical access network; (3) establish optical access from the perspective of cryptanalysis, the comprehensive evaluation model of network efficient security algorithm is studied, and its attack ability, key and encryption security analysis are studied. This research goal is to achieve independent innovation in optical access network security theory and technology, so as to achieve or exceed the international advanced level, and promote the sustainable and rapid development of China's secure optical access technology.