International Journal on Computer Science and Technology (IJCST)
In cloud environment, an enormous amount of data is produced everyday. Many organizations are now migrated to cloud and demand for resource is increasing. Hence the providers are now delivering multi-cloud environment to meet this demand. If multiple providers cooperatively work together the availability of resource can be increased. But still clients are worrying that their data is correctly stored and maintained by providers without intact. Though the providers are provide enough security there are still many security issues happening in cloud.