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物联网ONS解析技术及其安全研究
Research of Object Name Service and Its Security
【作者】 李杨；
【导师】 王钊；
【作者基本信息】 合肥工业大学 ， 计算机系统结构， 2012， 硕士
【摘要】 物联网是近年来新兴的网络技术，该技术在产品供应链，库存管理等等领域倍受关注。在物联网构架中，网络压力有很大一部分会集中在后端物品编码解析服务器上，如果在EPC解析过程中，ONS解析速度不够快，结果不够准确，会给物联网的应用和推广带来很大不利。目前国内外ONS构架尚处于探索阶段，所以，论文的主要研究点集中在ONS的构架。Kademlia是基于DHT的P2P协议中一个经典协议，针对Kademlia协议中节点ID空间庞大，节点分布稀疏带来的一些缺陷，提出一种改进的ID自适应方案LKad，LKad协议具有一定的网络规模自适应性，能够工作在一个相对紧凑的空间内，一定程度上缓解了节点分布过于稀疏带来的问题，进一步提高了节点和文档的查找效率。将这种改进的LKad协议应用在新的ONS构架上，并结合物品名称解析服务的特点，形成了一种可行性较高的层次化的分布式ONS构架。通过比对分析现行域名解析中存在的安全问题，结合现有的互联网安全措施，公钥基础设施，SSL协议等，针对本文的分布式ONS构架，提出一种ONS安全体系架构，较好地解决了ONS可能会面对的一些安全问题。具有这种强健的安全结构的ONS，配合一种灵活的EPC文档缓存机制，给ONS的解析效率带进一步的提升。
【Abstract】 Internet of Things is one of the emerging technologies in recent years. Itimproves supply chain operations, and asset tracking area. The pressures of Internetof Things will concentrate in the backend Articles coding analytical server. In theprocessing of EPC resolution, if the ONS resolver speed is not fast enough, or theresult is not accurate, thus will hinder the application and promotion of the Internetof Things. At present, the research of ONS architecture is still in exploratory stage.This thesis mainly focuses on the research of ONS architecture.Kademlia is one of the typical protocols among DHT. These theses propose animproved ID self-Adaptive method-LKad, to resolve the disadvantage of huge IDspace and node distribution sparse of Kademlia protocol. LKad has regular abilityof self-adaption to the length of network and able to working on a relativelycompact space. It not only release the question caused by the sparse distribution ofnodes, but also promotion the query efficiency of node and document. Applyimproved LKad protocol in the new ONS frame can form a hierarchical, distributedONS query architecture.Via comparative analysis of existing DNS security issues, combined with thecurrent Internet security measures, such as PKI and SSL. This thesis also proposesONS security frame aim to the front ONS distribution architecture, and can bettersolve the security problem that ONS may face with. Has security ONS architectureand flexible caching mechanism that can greatly promotion the analyticalefficiency.