Study on Security and Quality of Service Implementations in P2p Overlay Network for Efficient Content Distribution

Peer-to-peer (P2P) is a distributed system without any centralized control or hierarchical organization nodes organize itself in a dynamic way. It allows different applications to achieve efficient and simple file sharing. Without any authentication adversary nodes can spoof the identity and spoil the integrity by falsifying the messages in the overlay. This enables malicious nodes to launch man-inthe-middle or denial-of-service attacks and many security related attacks. P2P systems require a sufficient amount of trust from their nodes which are all participates in the network for AAA (Authentication, Authorization and Availability). From the analysis it aims to provide the prediction of optimized path in the network for efficient file sharing and the identification of necessary security methods in the network to provide security to decentralized p2p network.