Peer to Peer Distributed Data Storage with Security in Cloud Computing

Cloud computing is a new computing paradigm that attracted many computer users, business, and government agencies. Cloud computing brought a lot of advantages especially in ubiquitous services where everybody can access computer services through internet. In recent years, the technology of cloud computing has been widely applied in e-business, e-education and etc.Cloud computing platform is a set of Scalable large-scale data server clusters, it provide computing and storage services to customers. The cloud storage is a relatively basic and widely applied service which can provide users with stable, massive data storage space. Our research shows that the architecture of current Cloud Computing System is central structured one, all the data nodes must is central structured one, all the data nodes must be indexed by a master server which may become bottle neck of the system.So to over come bottle neck problem we are implementing the number of servers and each server is said to be an chunk. Each file may be partitioned into several parts and stored in chunk Server. Each chunk is stored in Remote machine. Meanwhile, the security of the system must be ensured with algorithm called TWOFISH. Confidentiality, availability and integrity are the main keys for a secure system. We propose new cloud storage architecture based on P2P and design a prototype system. By these we are going to overcome the problem bottle neck. The system based on the new architecture has better scalability and fault tolerance. This research paper is about a cloud storage architecture based on P2P with fault tolerance. Here the central entity is removed and all servers are interconnected to form a ring structure. When one of the servers fails, the work will be taken over by any of the best performing servers.