The data compromise could occur thanks to attacks by different users and nodes inside the cloud. Therefore, high security measures square measure needed to safeguard knowledge inside the cloud. However, the utilized security strategy should additionally take into consideration the improvement of the information retrieval time. In our proposed system propose the Division and Replication of Data in the Cloud for Optimal Performance and Security with NTRU Algorithm that for file storage and data security. In this system consist of two phase they are NTRU Encryption method and FDSCS methodology. In this methodology, we tend to divide a file into fragments, and replicate the fragmented knowledge over the cloud nodes. Each fragment is encrypted by NTRU Encryption Algorithm. Each of the nodes stores solely one fragment of a selected record that ensures that even just in case of an eminent attack, no meaningful information is revealed to the attacker. Moreover, the nodes storing the fragments square measure separated with bound distance by means that of graph T-coloring to ban associate assaulter of dead reckoning the locations of the fragments. Finally our Experimental result shows our proposed method ensures complete security of the data, reduce the data overhead and reduction the encryption and decryption time.

Fragmentation, NTRU algorithm, T-coloring, cloud security, optimization

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