作为未来网络的重要发展方向之一，信息中心网络(ICN)在减少带宽消耗、服务器负载、访问时延等诸多方面均具有优势。研究面向ICN的高效、安全内容缓存及分发机制已成为未来网络发展的一项重要研究课题。网络编码技术已被证明可提高数据传输效率和安全性，但如何将网络编码与ICN相结合，设计高效、安全的内容缓存及分发机制尚需深入、系统的研究。本课题拟针对内容缓存理论模型建立及性能分析、内容缓存与内容分发方案联合优化、面向高效内容缓存及分发的安全网络编码策略设计三个关键科学问题展开研究，设计高效、安全的内容缓存及分发方案，并在基于网络编码的ICN实验平台上进行验证。本课题将网络编码与ICN相结合，旨在发挥网络编码的优势，充分利用ICN中分布式缓存和多路径传输特性，进一步提高内容缓存及分发的高效性、安全性。因此，本课题研究成果不仅将丰富网络编码的理论基础，而且对下一代网络中ICN的实际应用具有重要参考意义。

Information-Centric Networking (ICN) is one of the most promising future network architectures, which can reduce bandwidth consumption, server load and access delay. Despite these significant advantages, efficient and secure content caching and distribution in ICN is still an open research issue. Network coding has been widely used to improve the efficiency and security of data transmission. However, how to employ network coding theory to design efficient and secure content caching and distribution in ICN still remains many valuable problems to be solved. This proposal will focus on three key research issues in network coding based ICN, including theoretically modeling and performance analyzing on content caching, joint optimization of content caching and content distribution, and design of secure network coding for efficient content caching and distribution. Moreover, we will also construct a network coding based ICN simulation platform to verify the feasibility and performance of the proposed schemes. Our research tries to integrate the network coding and ICN, which will fully exploit the advantage of both distributed in-network caching and multipath transmission to further improve network efficiency and security. Expected achievements obtained in this research will not only enrich the network coding theory, but also will be great significant in implementing ICN in next generation network.