Scalable and Revocable Attribute-Based Data Sharing With Short Revocation List for IIoT

The cooperative works between connected smart devices in the Industrial Internet of Things (IIoT) have greatly made the growth in productivity and economics for the conventional industry. However, due to the introduction of the communication network, the budding IIoT also confronts the unprecedented cyber threats. To prevent the data from being intercepted by malicious intruders, we propose an efficient and fully secure data sharing work with a short revocation list (DS-SRL) for IIoT. The DS-SRL not only enables flexible access control to the massive data in IIoT but also provides a direct revocation approach for handling the potential issues of key disclosure and membership expiring in application scenarios. Particularly, compared with existing directly revocable ABE works, the revocation list in the DS-SRL scheme will keep constant size even with the increasing number of users. Thus, the consumption for computing and disseminating the revoke-related part of ciphertext are low. This resource-saving merit makes our DS-SRL scheme suitable for IIoT where the smart devices are weak in the ability of both processing and storage. The DS-SRL works without boundary such that the public parameters involved in the system require no predefinitions and can be dynamically adjusted after deployment. Furthermore, the proposed DS-SRL work is demonstrated to be fully secure under the decisional linear assumption. Hence, it owns high flexibility, scalability, and security, which are essential and desirable in real-life applications. Finally, the superior feasibility, efficiency, as well as effectiveness of our DS-SRL work are fairly confirmed by the detailed performance evaluation.