An Enhancement of Cloud Data Access Security using Identity Based Encryption

Identity based Secure distributed data storage is a scheme that reduces the burden of maintaining excessive number of files from the owner to proxy servers. The Proxy servers are used to convert encrypted files for the owner to encrypted files for the receiver without the necessity of knowing the content of the original files. In practice, the owner removes the original files for the sake of space efficiency. Hence, the issues of confidentiality and integrity of the outsourced data must be addressed carefully since the cloud is managed by untrusted third party. In this paper, we propose an identity-based secure distributed data storage (IBSDDS) schemes. Our schemes captures the following properties: (1) The owner of the file can decide the access permission independently without the help of the private key generator (PKG); (2) For one request, a receiver can access only one file, instead of all the files of the owner; (3) Our scheme is secure against the collusion attacks and untrusted users, namely even if the receiver can compromise the proxy servers, it’s not possible for him to obtain the owner’s secret key. Although this system is secure against different types of attack, by using the concept of re-encryption the data gets more secured and the access permission that who will access the data is decided by the owner himself. In existing system to provide better security data owner has to be online all the time so our propose system will be helpful for data owner by getting notification about the request of the user to their mail-ids.