Friday, 13 February 2015

PRIVACY PRESERVING DELEGATED ACCESS CONTROL IN PUBLIC CLOUDS



G.Abinaya 1, R.Manjupargavi 2
1PG Student STET Women’s college, Mannargudi.
2Professor of IT department, STET Women’s college, Mannargudi.

                A public cloud is one based on the standard cloud computing model, in which a service provider makes resources, such as applications and storage, available to the general public over the Internet. Internet privacy involves the right or mandate of personal privacy concerning the storing, repurposing, provision to third parties, and displaying of information pertaining to oneself via the Internet. Information privacy, or data privacy (or data protection), is the relationship between collection and dissemination of data, technology, the public expectation of privacy, and the legal and political issues surrounding them. Delegation is a process of sharing access rights by users of an access control model. It facilitates the distribution of authorities in the model. The major problems of this approach include establishing Decomposing Access Control Polices, delegated access control for the encrypted data, proof of ownership allow storage server to check a user data ownership based on hash value and the access rights from users when they are no longer authorized to access the encrypted data. The enforcement of fine grained access control in cloud is a preferable approach, so it minimizes the overhanging to the data holders. The recommended approach that establish on two layers of encryption while assuring data confidentiality from the cloud. This paper applies an active group key management scheme. It is also approve expressive ACPs.
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