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Volume 11
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10.3390/info11020111
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Article

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

by
Gabriel Nyame
1,*,
Zhiguang Qin
1,
Kwame Opuni-Boachie Obour Agyekum
2 and
Emmanuel Boateng Sifah
2
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
*
Author to whom correspondence should be addressed.
Information 2020, 11(2), 111; https://doi.org/10.3390/info11020111
Submission received: 27 December 2019 / Revised: 6 February 2020 / Accepted: 9 February 2020 / Published: 17 February 2020
(This article belongs to the Section Information Systems)
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Abstract

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.
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.O.-B.; Sifah, E.B. An ECDSA Approach to Access Control in Knowledge Management Systems Using Blockchain. Information 2020, 11, 111. https://doi.org/10.3390/info11020111

AMA Style

Nyame G, Qin Z, Obour Agyekum KO-B, Sifah EB. An ECDSA Approach to Access Control in Knowledge Management Systems Using Blockchain. Information. 2020; 11(2):111. https://doi.org/10.3390/info11020111

Chicago/Turabian Style

Nyame, Gabriel, Zhiguang Qin, Kwame Opuni-Boachie Obour Agyekum, and Emmanuel Boateng Sifah. 2020. "An ECDSA Approach to Access Control in Knowledge Management Systems Using Blockchain" Information 11, no. 2: 111. https://doi.org/10.3390/info11020111

APA Style

Nyame, G., Qin, Z., Obour Agyekum, K. O.-B., & Sifah, E. B. (2020). An ECDSA Approach to Access Control in Knowledge Management Systems Using Blockchain. Information, 11(2), 111. https://doi.org/10.3390/info11020111

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