A Framework for Data Storage Security in Cloud

Cloud computing is the growing computing model and highly demandable technology which provide the digital services through Internet. Cloud has huge virtual storage where many users store their data. So selection of efficient and secure server from data centers is important for storing the data to achieve the availability and security. Security of data from unauthorized access is also mandatory. Cryptographic techniques are also used to protect the data by storing it in encrypted form on cloud. Many cryptographic algorithms which are based on attributes, prediction, and identity can be deficient to some level from various security attacks. So there is requirement to develop protected data storage frameworks which ensure the security of data. This proposed work presented security framework for cloud storage, based on metaheuristic approach “modified cuckoo algorithm” for server selection, three-stage authentication, ECC for confidentiality, and CMA-ES for cipher text optimization. The proposed model ensures the availability, authentication, confidentiality, and security of the data while accessing to cloud.