Technology of Blockchain
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 8
2278-2283

Model of block-chain data sharing based on ABE

Zhang Xiaodong1a
Chen Taowei1a
Yu Yimin1b
Duan Zhengtai1b
Gao Jian2
1. a. School of Information, b. Information Management Center, Yunnan University of Finance & Economics, Kunming 650221, China
2. Dept. of S&T Management, Yunnan Provincial Academy of Science & Technology, Kunming 650000, China
DOI: 10.19734/j.issn.1001-3695.2020.12.0538

Abstract

Inspired by the fact that attribute-based encryption technology can effectively realize cloud data security sharing and access control, this paper proposed a block chain data sharing model based on attribute-based encryption to ensure the privacy protection and full security in the current block chain system. The model was based on the ciphertext policy attribute-based encryption(CP-ABE) scheme proposed by Waters. First of all, in the secret key generation phase, the data user entrusted multiple nodes to jointly calculate and store part of the private key, while other data users were not allowed to obtain the complete key, thus improving the efficiency of private key generation. Secondly, in order to prevent the abuse of key and the management of parameters in the algorithm, this paper defined a key transfer transaction data structure, and realized the accountability of CP-ABE algorithm. Finally, by building a shared chain with the function of collaborative computing and storage on and off the chain, it realized the effective integration of attribute-based encryption and block chain system. Security analysis and experimental simulation results show that the proposed model has certain optimization in the computational efficiency of key generation and actual business scenarios to meet the needs of engineering applications.

Foundation Support

国家自然科学基金资助项目(71964037,61461051,61961042)
中央引导地方科技发展专项资金资助项目(202007AD110001)
电子政务建模仿真国家工程实验室开放课题项目(MEL-18-03)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2020.12.0538
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 8
Section: Technology of Blockchain
Pages: 2278-2283
Serial Number: 1001-3695(2021)08-005-2278-06

Publish History

[2021-08-05] Printed Article

Cite This Article

张晓东, 陈韬伟, 余益民, 等. 基于属性基加密的区块链数据共享模型 [J]. 计算机应用研究, 2021, 38 (8): 2278-2283. (Zhang Xiaodong, Chen Taowei, Yu Yimin, et al. Model of block-chain data sharing based on ABE [J]. Application Research of Computers, 2021, 38 (8): 2278-2283. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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