International Journal on Computer Science and Technology (IJCST)
As high-speed networks and ubiquitous Internet become widely accessible in recent years, many utilities are available on the Internet such that the users can use them from anywhere and at any time. A cloud is a collection of storage servers maintained by the cloud service provider. It is providing on-demand self service, resource pooling, rapid elasticity and measured service. But data confidentiality is the main problem for the users when they are storing the information in cloud. But cloud minimizes the investment cost of the individual users. Security can be provided by building a secure storage system along with two identity-based secure distributed data storage schemes.