A Lightweight and Efficient Data Sharing Scheme for Cloud Computing

Saeid Rezaei ； Mohammad Ali Doostari ； Majid Bayat

《International Journal of Electronics and Information Engineering》 9卷2期 (2018/12) Pp. 115-131

https://doi.org/10.6636/IJEIE.201812_9(2).06

摘要

Cloud storage is a useful service of cloud computing which allows users to upload their data in the cloud and share it with others. Although, this new service is affordable and practical, but it is associated with several privacy and security challenges. Nowadays, Attribute Based Encryption (ABE) is widely used to provide secure data sharing in the distributed environment such as cloud computing. Unfortunately, most of the existing ABE schemes are not suitable for resource- constraint cloud systems, because they use expensive bilinear pairing operation and thus they cause a very high encryption and decryption computation overhead. In this paper, we propose an efficient no-pairing and revocable ABE data sharing scheme based on Elliptic Curve Cryptography (ECC) for cloud storage systems. Moreover, a comprehensive security and performance analysis shows that our scheme is both secure and efficient.

關鍵字

Attribute-based Encryption ； Cloud Computing ； Data Sharing ； Elliptic Curve Cryptography ； Security