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| Title | A Decentralized Multi-Authority Attribute-Based Encryption Scheme Via Blockchain For Smart Grid |
|---|---|
| ID_Doc | 1283 |
| Authors | Zhang C.; Wang Z.; Liu L.; Li G.; Li H. |
| Year | 2023 |
| Published | 2023 IEEE International Conference on Electrical, Automation and Computer Engineering, ICEACE 2023 |
| DOI | http://dx.doi.org/10.1109/ICEACE60673.2023.10442268 |
| Abstract | As digital transformation becomes an increasingly important area in the power systems of china recently, concerns about how to make the conventional power grid more smart have risen. And for a smart power grid, data sharing among different sub-systems should be essential for facilitating the transformation. Since if the data in different sub-systems can be shared efficiently, then an electric power corporation can unite its smart grid systems as a whole system and then make the system smarter. Typically, data in different sub-systems are managed by different access control policies. Traditional single authority attribute-based encryption (ABE) schemes can provide mechanisms for sharing data with a fine-granted access control policy. However, single authority ABE can be problematic since each sub-system can only verify the legality of its own users' attributes. Multi-authority ABE (MA-ABE) where different attribute sets can be under the control of different authorities. A key issue is the trust of the distributed authorization from different sub-systems. Many existing MA-ABE involves a central authority to solve the problem. But a centralized MA-ABE can not fit the distributed systems well. To construct a decentralized MA-ABE scheme, much research suffers from heavy computation costs. To address these problems, we propose a decentralized MA-ABE scheme via blockchain technology. The proposed scheme can well-utilize the existing single authority ABE and is under standard security assumptions. Moreover, we executed the experiment in a live test network of Ethereum to give a real-world test and the results show the proposed scheme is efficient. Compared with a similar scheme, the proposed scheme enjoys less computation cost. © 2023 IEEE. |
| Author Keywords | Blockchain; Decentralized; Key Exchange; Smart City |
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