Outsourced Data on Cloud Using Key-Aggregate Crypto System

Vinay Kumar Sinha, P. Anjaiah


Our Major focus for outsourced data on cloud is how to share these data to other users in secure and flexible way because user don’t have physical control over the outsourced data. So Key Aggregate Cryptosystem became that enables the user to set own policies and enforce the policies on the data to be distributed.

KAC allow the user encrypts data and upload on the network storage as well as efficiently delegate the decryption rights for any set of cipher texts. It have more powerful feature which allow the flexible choices of data in cloud storage that compact different encrypted keys for different set of data in a single key i.e. Aggregate Key send to other via mobile OTP, email or to be stored in a little secure storage and remains data will be confidential on cloud. The main goal of KAC have to Access Control, Preventing data access and Integrity of data in network storage.

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