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An ECDSA Approach to Access Control in Knowledge Management Systems Using Blockchain

1
School of Information and Software Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
2
School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
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Author to whom correspondence should be addressed.
Information 2020, 11(2), 111; https://doi.org/10.3390/info11020111
Received: 27 December 2019 / Revised: 6 February 2020 / Accepted: 9 February 2020 / Published: 17 February 2020
(This article belongs to the Section Information Systems)
Access control has become problematic in several organizations because of the difficulty in establishing security and preventing malicious users from mimicking roles. Moreover, there is no flexibility among users in the participation in their roles, and even controlling them. Several role-based access control (RBAC) mechanisms have been proposed to alleviate these problems, but the security has not been fully realized. In this work, however, we present an RBAC model based on blockchain technology to enhance user authentication before knowledge is accessed and utilized in a knowledge management system (KMS). Our blockchain-based system model and the smart contract ensure that transparency and knowledge resource immutability are achieved. We also present smart contract algorithms and discussions about the model. As an essential part of RBAC model applied to KMS environment, trust is ensured in the network. Evaluation results show that our system is efficient. View Full-Text
Keywords: access control; blockchain; ECDSA; knowledge management; RBAC; smart contract access control; blockchain; ECDSA; knowledge management; RBAC; smart contract
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MDPI and ACS Style

Nyame, G.; Qin, Z.; Obour Agyekum, K. .-B.; Sifah, E.B. An ECDSA Approach to Access Control in Knowledge Management Systems Using Blockchain. Information 2020, 11, 111.

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