Biblio

Peer to peer file transferring is always a better approach for sharing the contents among multiple nodes when they are in same logical network. Sometimes when a peer leaves the network and its resources key is handed-over to other neighbors (may be adjacent peer) there is always high risk for transferring of related content. In this paper a solution has been implemented through which peers can share files with another peer in a secure manner over P2P enabled intra-network. The data of Peers are located in two different folders namely- PUBLIC and PRIVATE. For a PRIVATE file, the permission from the owner will be desired to retrieve the file at the receiving-end peer. This enables users to restrict the outflow of files. The main advantage of this application is that there is no need of global network (internetwork) and a centralized server.

Due to the diversity and mobility of blockchain network nodes and the decentralized nature of blockchain networks, traditional trust value evaluation indicators cannot be directly used. In order to obtain trusted nodes, a trustworthiness calculation method based on trust blockchain nodes is proposed. Different from the traditional P2P network trust value calculation, the trust blockchain not only acquires the working state of the node, but also collects the special behavior information of the node, and calculates the joining time by synthesizing the trust value generated by the node transaction and the trust value generated by the node behavior. After the attenuation factor is comprehensively evaluated, the trusted nodes are selected to effectively ensure the security of the blockchain network environment, while reducing the average transaction delay and increasing the block rate.