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The Security and Efficiency in Attribute-Based Data Sharing

Author(s):

Mr.Bhaskar Swapnil Appasaheb , Shri Chhatrapti Shivaji College of Engineering, Rahuri, India; Mr. Gadhe Nilesh Baban, Shri Chhatrapti Shivaji College of Engineering, Rahuri, India

Keywords:

Attribute Based Encryption, Data Sharing, Revocation, Removing Escrow, Access Control

Abstract

In the recent data sharing paradigm there have been need for data security in distributed systems such as online social networks, One of the most dangerous issues in data sharing systems is the access policies. Cipher text policy attribute-based encryption (CP-ABE) is solution for this issue use cryptography. The senders to define their own access policies using attributes and enforce the policies on data to be distributed. However, a key escrow problem is a major drawback in existing system. In our contribution we solve key escrow problem. The key generation center generating their private keys and decrypt any messages addressed to specific users. This is not suitable for data sharing system where the data owner make their private data only accessible to authorized users. Therefore by applying CP-ABE in the data sharing system introduce another challenge with regard to the user revocation hence the access policies are defined over the attribute universe. In this paper, we propose a advance Cipher text Policy-ABE scheme for a data sharing system by using the characteristic of the system architecture. The proposed scheme gives the following advantages: 1) the key escrow problem can be solved by escrow-free key issuing protocol, the secure two-party computation between the key generation center and the data-storing center is performed, and 2) Due to proxy encryption, the selective attribute group key distribution is the main function of the ABE.

Other Details

Paper ID: IJSRDV4I30764
Published in: Volume : 4, Issue : 3
Publication Date: 01/06/2016
Page(s): 1385-1388

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