A Study Of ONS System Architecture And Security Based On P2P

Object Name Service(ONS) is a distributed system of the Internet of Things, the basic working principle as follows:every object is assigned a unique identifier in the real world, that is the Electronic Product Code(EPC), through EPC and ONS Resolution Service, a detailed Internet information address list for the object can be returned, then according to this address to query detailed information of the object, the Object Name Service is the conversion of the product code and product details, there is no ONS resolution services can not achieve the flexibility and the global scalability of The Internet of Things, and the Internet of Things does not have any prospects for development.With the Internet of Things technology development, the query of the detailed items will be increase quickly, and based on traditional Domain Name System DNS’s ONS System always have a series problem that root server is heavily loaded, low security, the query delay, low query efficiency, and all of these are caused by the DNS’s tree structure of the system.Above-mentioned problems in the DNS-ONS system will be more serious with the increase of the scale of the Internet Things. This paper we introduce P2P technology and study the ONS system based on P2P. P2P is also known by peer to peer Internet technology, each node is both a server and client in the P2P network environment, it can be resolve server load balancing, the single point failure and security. The network is built base on P2P technology, there are less restrictive in nodes free joining and leaving, the whole network is establishmented by using self-organizing way. When some node is failure in the networkconnectivity. At the same time, as the changes in the network in the number of nodes and the size of band width and the balance of the load, P2P networks can be automatically adjusted to optimal.So based on P2P architecture network is advantage in inherently safe, resistant to attack, high fault tolerance. So ONS system based P2P has some practical research significance.There are two kinds of P2P technology, including structured and unstructured. Information search has a certain blindness in unstructured systems, so this paper based on structured P2P technology in order to improve the efficiency of the search. At present, Distributed Hash Table is applied in the structured technology. There are many nodes in the Distributed hash table, all of these nodes within a large hash table, and each node is usually assigned an address space that is a node identifiers in order to distinguish. When a resource is added to the DHT network, the resource object on its own IP address and KEY value hash to get a resource identifier, then the resource identifier is mapped to the nodes of the DHT network. When you want to find a resource, the first step through hash computing to get resource identifier, and then navigate to the resources of the storage node. The mainly DHT algorithm include chord, CAN, Pastry, Tapestry etc.This "paper uses the Chord algorithm proposed by the Massachusetts Institute of Technology, and make use of the advantages of structured P2P technology in the ONS system, and study the distributed Object Name Service system based on P2P (referred to as P2P-ONS system), and analyze the security problem. Based on the realization of P2P-ONS system architecture has greatly improving in the overall multilateral security, system performance and scalability than based on the traditional domain name resolution system (DNS-ONS).