BLOCK DRIVE : A DRIVE FOR IMAGE STORAGE AND SHARE BY USING THE BLOCKCHAIN TECHNOLOGY

Abstract

The project entitled “Decentralized Secure Cloud Storage Using Blockchain” is a P2P net- work where each node provides the storage service to the client’s data. The developed system is concerned with storing parts of a single encrypted file, each part being stored on different nodes such that only client can retrieve the parts to remake the original file. The purpose of the system is to experiment and demonstrate a working Secure File Storage System for small sized credential files, based upon the Cryptography and Blockchain tech- nology. The P2P network is designed using the Kademlia protocol that allows each node to join and leave the network anytime, identify it’s closest nodes, update it’s routing table and search for any node. Using different cryptography and network algorithms a new protocol for such a system has been implemented in this project. Using blockchain to apply Service Term Agreement, files can be chunked and distributed to a completely decentralized storage network without any loss of accountability and integrity. The project has been successfully deployed and tested for Android client by maintaining a P2P network of several nodes. However it is evident that a web application can be more feasible for large size files and Android application for small sized files and portability.