MULTICLOUD STORAGE USING LINEAR PROGRAMMING

In our work we are going to use the concept of multi - cloud storage. These multi clouds will be different according to their quality of Service (QOS). That is each one will have different efficiency. the user will upload the file which he wish to, then the file will be uploaded with the help of network in the auditor which will store the da ta in encrypted form using linear programming in parts which will have unique hash key for each part. Third Party Administrator (TPA) will send the data to the cloud based on its quality of service (QOS) and at this time the user will be kept on waiting. P roviding better privacy as well as ensuring data availability. Auditor will also save the encrypted data in the database too when user wish to download the desired file the auditor. It will match the hash key of the file with the cloud and will send it to user.