Double Encryption and Key Aggregation on Virtual Cloud

Cloud computing is one of the fastest growing internet based technology that gives users to utilize services by making use of large poll of resources without installation of any software. Adoption of this technology is increasing rapidly because of many advantages including reduction of cost and IT load. In the double encryption and key aggregation on virtual cloud there is two method we will implement that are double encryption and key aggregation. Double encryption is the process in which we have to implement the process, which can encrypt the file at the time of uploading. After that when we have to download it will decrypt automatically by system with OTD. Despite the popularity of cloud computing, it faces many difficulties such as security that is one of the major inhibitors in the growth of cloud computing. Data confidentiality is at the top of the list of security concern for this technology. Here in this project we have another concept that is key aggregation, in that any user can send request for multiple file and user will allow access. Then User can download the file throw otd comes throw message on mobile. In the key aggregation, multiple keys for various file can be aggregated and user will get the OTD for one time download.