Multi-authority threshold attribute-based encryption from R-LWE in fog and cloud computing environments
Xianbin Zhou, Rui Jiang · 2022
Fog computing is an evolving paradigm which extends cloud computing to the edge of the network. Recently, how to combine the fog computing with cloud computing will play a significant role in Internet of Things (IoT), smart grid, health care, etc. However, fine-grained data access control and quantum computing attack resistance are two main secure problems in fog and cloud computing environments. To handle these problems, in this paper, we propose a multi-authority threshold attribute-based encryption scheme from R-LWE in fog and cloud computing environments (MAT-ABE-FC). Our MAT-ABE-FC scheme innovatively integrates the traditional cloud computing with the promising fog computing environment, and can not only provide fine-grained data access control, but also withstand quantum computing attacks. Moreover, our MAT-ABE-FC scheme can support multi-authority, and realize secure attribute revocation. Both security and performance analysis indicate that our scheme is secure and efficient.