Abstrato

MULTI ORGANIZATION RECORD SHARING IN CLOUD COMPUTING USING ATTRIBUTEBASED ENCRYPTION

Mr. T. Krishnakumar, Ms. S. Kayalvili M.E.

Cloud computing has emerged as one of the most influential paradigms in the IT industry in recent years. Since this new computing technology requires users to entrust their valuable data to cloud providers, there have been increasing security and privacy concerns on outsourced data. Several schemes employing attribute-based encryption (ABE) have been proposed for access control of outsourced data in cloud computing; however, most of them suffer from inflexibility in implementing complex access control policies. This system not only achieves scalability due to its hierarchical structure, but also inherits flexibility and fine-grained access control. This method used to access the single dataset or local dataset from the cloud computer. Data interoperation systems integrate information from different local sources to enable communication and exchange of data between them. A common model for these systems involves a global representation of the local data, which acts as a mediator for translating queries and conveying data to and from these sources using the global-as view (GAV) approach. In addition, global resource employs multiple value assignments for access expiration time to deal with user revocation more efficiently than existing schemes. The security of global resource based on security of the cipher text-policy attribute-based encryption (CP-ABE) scheme is proved and its performance and computational complexity is to be analyzed.