Fragmentation and Dynamic Replication Model in Multicloud by Data Hosting with Secured Data Sharing

Cloud Computing that can be provisioned for data hosting and data management. The cloud providers are hosting their data through different strategies. Enterprises and organizations are looking for service availability and to enhance the data reliability. Several Organizations has used single cloud-providers, but it has become less popular along with the customers due to risks of service availability failure. In this paper, division and dynamic replication of data management in the cloud storage has been proposed with few security aspects in which secured data sharing can be implemented. In replication model its divides a file into fragments and that file is replicated over the cloud nodes. In T-Coloring each node stores only single fragment even in case of successful attack, no meaningful information is revealed to the attacker and the nodes are placed with certain design. It reduces the access latency and improves data availability and data access. The system improves the data retrieval time and reconstructs the original cover. Cloud computing and storage solutions facilitate the users to store and process the data in third-party data centers. The privacy and security of group sharing data can be improved in this framework which combines proxy re-encryption, one time password verification and regular elimination of unwanted files. By applying proxy re-encryption, most computationally rigorous operations can be delegated to cloud servers without revealing any private information. One time secret key is one of the simplest and prominent type compared to the text based passwords, it can be utilized for securing access to accounts. The performance and results illustrates that our proposed scheme has the prospective to be successfully used for secure data sharing in the cloud