基于资源路由环的对等云区间搜索技术

A P2P Cloud Searching in a District Technology Based on Resource Routing Ring

运用结构化的对等技术来构建云系统,针对传统P2P技术仅适合精确搜索的问题,以及用户的隐私保护需求,文章提出一种在密文状态下实现的对等云区间搜索技术.在Pastry的基础上架构对等云,在资源发布前,运用同态加密技术对资源属性值进行加密;在资源发布时,将存储相同类型资源的节点链接起来形成资源路由环;在资源搜索时,采用密文结合路由环的方式进行区间搜索.本文提出的算法弥补了结构化的对等云在区间搜索方面的不足,且密文搜索实现了对用户隐私的保护.

In this paper,structured P2P technology has been used to build cloud system.Aiming at the problem that traditional P2P technology is only suitable for precise search and the demand of user privacy protection,a P2P cloud interval searching technology in ciphertext state has been proposed.The P2P cloud is built on the basis of pastry.Before the resources are released,homomorphic encryption technology has been used to encrypt the resource attribute value.When the resources are published,the nodes that store the same type of resource are linked together to form a resource routing ring.In the process of resource searching,ciphertext and routing ring are used for interval searching.The algorithm proposed in this paper makes up for the shortcomings of that structured P2P cloud couldn't do interval searching,and ciphertext searching realizes the protection of user privacy.