内容中心移动网络中移动感知的异构缓存高效安全机制

内容中心移动网络正成为下一代网络新的发展趋势，缓存安全问题是该网络部署和实施的关键因素。内容中心移动网络内嵌缓存的泛在化、移动性、异构性特点为缓存安全机制设计带来了新的挑战，现有的缓存安全机制无法完全适用。. 本项目围绕缓存安全性和高效性建立移动感知的异构缓存高效安全机制，着力解决缓存攻击动态演进过程中的及时防御、复杂动态拓扑下的缓存安全决策及缓存安全性和缓存效率有效均衡三方面科学问题。开展以下四个方面工作：设计异构缓存资源发现和管控方法，建立基于移动感知和SDN的缓存安全框架；研究基于博弈论的缓存攻击高效检测和防御技术，提供缓存攻击感知和主动抑制能力；开展节点移动与缓存安全方案的联合设计，研究具有移动感知能力的区分缓存的安全决策策略；构建融合缓存系统性能和安全的缓存效用函数，研究安全高效缓存协同优化模型和算法。预期成果力图将缓存安全性防护转化为可全面观察和安全防范、可主动控制的过程。

The Content-Centric Mobile Networking (CCMN) is becoming a new trend in the next generation network. Caching security is a key factor in the deployment of CCMN. The ubiquitous, mobility and heterogeneous features of the built-in cache bring new challenges on designing the caching security mechanism, which causes the existing mechanisms cannot be fully applied.. This project aims to build mobility-aware high efficient security mechanism for heterogeneous caching in CCMN, which attempts to solve the following three problems: efficient defense on the cache attacks, secure caching decision in the dynamic topology and effective balance between the caching security and efficiency. Our research includes the following fours aspects. First, we design heterogeneous cache resource discovery and management methods, and establish a uniform caching security framework based on mobility awareness and Software Defined Networking (SDN) technique. Then, we study efficient detection and defense method against cache attacks by adopting the game theory, aiming at providing the capability of attack perception and active suppression. Thirdly, we consider the node mobility to design the differentiated caching decision strategy. Last, we construct the caching utility function that considers the performance and security of the caching, and further study the collaborative optimization model and algorithm. The expected results will establish a secure and efficient caching mechanism for CCMN to transform the cache security into a fully observable, security guarded and initiatively controllable process.