The Research On Distributed Storage Technology Based On Peer-to-Peer

Storage Technology is one of the hot research topics in recent years. With the development of Internet and the emergence of multimedia, nowadays, networks are full of large size files, such as video, music, photo, and ebook, etc. How to store and manage massive data with efficiency and security is one of the challenges of Internet. Because of its high scalability, P2P network meets the needs of the large-scale file-sharing system.Based on systematical research on distributed storage technologies, the dissertation presents the STI-store (Secure Trustful Incentive Storage System) system and gains several achievements on sub domains of P2P research, such as Incentive Model, Trust Model, Replica Management, Routing Algorithm, Secure Communication and etc.The major contributions of this dissertation are as below.1. This dissertation presents a novel Game-Based Peer-to-Peer Incentive Mechanism. Selfish behavior of nodes is one of the key problems that restrict the development of P2P systems. Current incentive models pay more attention to the contribution of nodes, and take no consideration for the individual payoff. To address these problems, this dissertation presents a novel game-based P2P incentive mechanism and its mathematics expression. Resources are distributed based on incentive values, and the contribution factor and the payoff factor are provided in the mechanism.2. This dissertation presents a novel Behavior-Based Peer-to-Peer Trust Model. In P2P systems, every user can release files freely, which makes the large-scale file-sharing feasible. However, with malicious nodes increasing, lots of faked files and deceptive behaviors restrict the development of P2P application. Current P2P trust models can not guarantee the Quality of Service(QoS), and take no consideration for trust decay and cooperative cheat. To address these problems, this dissertation presents a novel behavior-based P2P trust model...