Student Information Security Sharing Scheme Based on Consortium Blockchain and CP-ABE
(1.College of Computer Science and Technology, Taiyuan Normal University, Jinzhong 030619, China; 2.Shanxi Key Laboratory of Intelligent Optimization Computation and Blockchain Technology, Taiyuan Normal University, Jinzhong 030619, China)
Abstract
Aiming at the access control problems of student information, this paper proposes a student information security sharing scheme based on consortium blockchain and CP-ABE. The scheme stores the access policy in the consortium blockchain through the on-chain and off-chain collaborative storage mechanism, and stores the encrypted student information in the cloud service, which can not only reduce the on-chain storage cost, but also ensure the safe storage and effective sharing of student information. At the same time, CP-ABE technology is combined with smart contract, and the key generation and access control strategy of CP-ABE are automatically processed by using the automatic execution ability of smart contract, so as to realize the instant, automatic and fine-grained access management of student information. Through the security analysis and experimental verification of the scheme, the results show that the scheme has good security and availability, can effectively solve the access control problem of student information, and provides a new idea and method for information security sharing in the field of education.
Keywords
data sharing; consortium blockchain; CP-ABE; smart contract; access control
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About the authors
Zhao Peng (1973-), male, Han ethnicity, from Taiyuan, Shanxi, professor, PhD, research interests: software engineering, big data, blockchain; Qi Tongyan (1999-), female, Han ethnicity, from Linfen, Shanxi, currently pursuing a master's degree in blockchain technology and encryption algorithms; Corresponding author: Lu Bo (1988-), male, Han ethnicity, from Jinzhong, Shanxi, teaching assistant, PhD, research direction: protocol security analysis, blockchain; Zhao Jie (1997-), male, Han ethnicity, from Xinzhou, Shanxi Province, is currently pursuing a master's degree in blockchain technology and consensus algorithms.