A Fine-Grained IoT Data Access Control Scheme Combining Attribute-Based Encryption and Blockchain

IoT technology has been widely valued and applied, and the resulting massive IoT data brings many challenges to the traditional centralized data management, such as performance, privacy, and security challenges. This paper proposes an IoT data access control scheme that combines attribute-based encr...

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Bibliographic Details
Published in:Security and communication networks 2021, Vol.2021, p.1-13
Main Authors: Lu, Xiaofeng, Fu, Songbing, Jiang, Cheng, Lio, Pietro
Format: Article
Language:English
Subjects:
Access control
Algorithms
Blockchain
Cloud computing
Confidentiality
Cryptography
Data encryption
Data management
Efficiency
Encryption
File sharing
Information sharing
Internet of Things
Medical research
Privacy
Security
Security management
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Summary:IoT technology has been widely valued and applied, and the resulting massive IoT data brings many challenges to the traditional centralized data management, such as performance, privacy, and security challenges. This paper proposes an IoT data access control scheme that combines attribute-based encryption (ABE) and blockchain technology. Symmetric encryption and ABE algorithms are utilized to realize fine-grained access control and ensure the security and openness of IoT data. Moreover, blockchain technology is combined with distributed storage to solve the storage bottleneck of blockchain systems. Only the hash values of the data, the hash values of the ciphertext location, the access control policy, and other important information are stored on the blockchain. In this scheme, smart contract is used to implement access control. The results of experiments demonstrate that the proposed scheme can effectively protect the security and privacy of IoT data and realize the secure sharing of data.
ISSN:1939-0114
1939-0122
DOI:10.1155/2021/5308206