Research And Implementation Of The Key Technologies In P2P Secure Storage System

Network has become more and more important in modern society with its rapid development. It is a widely concerned problem in how to combine the distributed heterogeneous storage resources into one large distributed storage system which can provide secure and high-quality storage services.P2P (Peer-to-Peer) can reasonably and fully utilize all sorts of network resources. By way of fully distributed management, P2P-based distributed storage system aims to make better use of storage resources and construct high-performance storage systems with each part in it being equal to each other.This paper did some in-depth research on the secure key technology of P2P storage system. First, it elaborated on the relevant research on peer-to-peer system, pointed out the main research content of peer-to-peer storage system, and gave comparative analysis of the existing well-known peer-to-peer distributed storage systems. Second, it descripted the digital signature scheme based on the RSA which adapted to the P2P environment. Third, it elaborated on the research status of complex data query technology in P2P system, descripted the complex data query scheme based on the B~+ tree, and realized complex data query based on B~+ tree.At last, it designed and implemented a P2P-based distributed storage systems. It illuminated system's logic framework and data organizational structure, analyzed the performance of the system after gave a detailed introduction about every functional module's design.