Supporting Attribute-Based Encryption for Secure Data Sharing in Big Data Environments

Abstract

As the data become an important issue in every research. Big data security has been increasingly concerned. In this scenario to control the access of users where data is stored in the cloud, we use a Technique called CP-ABE (Cipher text – Policy Attribute Based Encryption) which uses some attributes of data consumers to encrypt their data under the access policies, and use this attributes to decrypt the data. Even CP-ABE access policy is attached to the cipher text in plain text form, which also leaks some end-users information. To overcome this we use CP-ABE with a novel distributed Publish-Driven Secure Data sharing for ICIOT (DPD-ICIOT) which allows authorized users and publishers to access the IOT data from distributed storage network. In this proposed system we use the key mechanism which is efficient for cryptographic operate like self-updating attributes automatically without querying the centralized servers. It also achieves lower bandwidth and cost compared to the existing CP-ABE and end users privacy   without employing much overhead.