Hybrid P2P and Cloud Storage System Based on Fountain Codes

Abstract

In this paper, we present a hybrid storage system that combines cloud storage with P2P storage. In the cloud storage system, all the data are consistently stored at server clusters but the data may be exposed to others accessing server clusters. On the other hand, in the P2P storage system, the data are distributed to a group of participating peers. Although the data privacy may be improved compared to the cloud storage system, the reliability may be significantly degraded since the peers are much more unstable than server clusters. The proposed hybrid system is designed to provide the desired system reliability with a short upload transmission time and enhance the privacy to avoid other users from reading the contents.