An Efficient and Fine – Grained Big Data Access Control Scheme with Privacy – Preserving Policy

Abstract

An Efficient and Fine-grained Big Data Access Control Scheme .An Efficient and Fine-grained Big Data Access Control Scheme with Privacy-preserving Policy,How to control the access of the huge amount of big data becomes a very challenging issue, especially when big data are stored in the cloud. Ciphertext-policy attribute-based encryption (CP-ABE) is a promising encryption technique that enables end-users to encrypt their data under the access policies defined over some attributes of data consumers and only allows data consumers whose attributes satisfy the access policies to decrypt the data. An Efficient and Fine-grained Big Data Access Control Scheme.Many significant challenges extend beyond the analysis phase. It may need to figure out good questions based on the data. Doing this will require smarter systems and also better support for user interaction with the analysis pipeline