Biblio

Security has always been concern when it comes to data sharing in cloud computing. Cloud computing provides high computation power and memory. Cloud computing is convenient way for data sharing. But users may sometime needs to outsourced the shared data to cloud server though it contains valuable and sensitive information. Thus it is necessary to provide cryptographically enhanced access control for data sharing system. This paper discuss about the promising access control for data sharing in cloud which is identity-based encryption. We introduce the efficient revocation scheme for the system which is revocable-storage identity-based encryption scheme. It provides both forward and backward security of ciphertext. Then we will have glance at the architecture and steps involved in identity-based encryption. Finally we propose system that provide secure file sharing system using identity-based encryption scheme.