A Secure Erasure Cloud Storage system using Advanced Encryption Standard algorithm and Proxy Re-encryption

Cloud computing is a model that treats the resources on the internet as an integrated entity, cloud. Organizations proposing computing services are termed cloud providers and normally charge for their services based on the consumption. Cloud storage is an improved way out to those who wish to pay consideration to the security issues of their data. Cloud storage provides enhanced security from the occurrence of viruses. It is difficult for the information to be retrieved by any unauthenticated user since the data is encrypted when it is stored in the server. The entire server is very much secured with innovative encryption system. The central focus of this paper is creating a protected storage system that provisions multiple tasks and this is thought-provoking when the storage system is dispersed and has no central power. Here, a proxy re-encryption scheme is suggested and combined with a distributed erasure code such that a secure and strong data storage and retrieval, but also lets a user to share his information on the cloud with a different user in the encrypted format itself. This paper facilitates the use of encoding the encrypted files and sharing files in the encrypted format itself. This paper uses the techniques of both encrypting and sharing the data. Erasure encoding supports sharing encrypted files and is valid in decentralized distributed system. A distributed erasure code is used to authorize the data safety in the dispersed cloud storage.