STAIBT: Blockchain and CP-ABE Empowered Secure and Trusted Agricultural IoT Blockchain Terminal.

Guofeng Zhang; Xiao Chen; Lei Zhang; Bin Feng; Xuchao Guo; Jingyun Liang; Yanan Zhang

doi:10.9781/ijimai.2022.07.004

Authors

Guofeng Zhang Taishan University
Xiao Chen Taishan University
Lei Zhang Shandong Academy of Building Research
Bin Feng Taishan University
Xuchao Guo China Agricultural University
Jingyun Liang Shandong Academy of Agricultural Sciences
Yanan Zhang University of Jinan

DOI:

https://doi.org/10.9781/ijimai.2022.07.004

Keywords:

Internet of things, Blockchain, Data Security, Data Privacy, Ciphertext-Policy Attribute-Based Encryption (CP-ABE), Agriculture, Agricultural Internet of Things

Supporting Agencies

This work was supported by the Project of Shandong Provincial Natural Science Foundation under Grant No.ZR2021QF056, Key R&D Program of Shandong Province (soft science project) under Grant No.2021RKL02002, Shandong social science planning and research project under Grant No.21CSDJ43, National Natural Science Foundation of China under Grant No. 62071320, Shandong federation of social sciences under Grant No. 2021-YYGL-32, and Tai’an Science and Technology Innovation Development Project under Grant No. 2020NS080.

Abstract

The integration of agricultural Internet of Things (IoT) and blockchain has become the key technology of precision agriculture. How to protect data privacy and security from data source is one of the difficult issues in agricultural IoT research. This work integrates cryptography, blockchain and Interplanetary File System (IPFS) technologies, and proposes a general IoT blockchain terminal system architecture, which strongly supports the integration of the IoT and blockchain technology. This research innovatively designed a fine-grained and flexible terminal data access control scheme based on the ciphertext-policy attribute-based encryption (CP-ABE) algorithm. Based on CP-ABE and DES algorithms, a hybrid data encryption scheme is designed to realize 1-to-N encrypted data sharing. A "horizontal + vertical" IoT data segmentation scheme under blockchain technology is proposed to realize the classified release of different types of data on the blockchain. The experimental results show that the design scheme can ensure data access control security, privacy data confidentiality, and data high-availability security. This solution significantly reduces the complexity of key management, can realize efficient sharing of encrypted data, flexibly set access control strategies, and has the ability to store large data files in the agricultural IoT.

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