scholarly journals Decentralized Machine Autonomy for Manufacturing Servitization

Sensors ◽  
2022 ◽  
Vol 22 (1) ◽  
pp. 338
Author(s):  
Matevž Pustišek ◽  
Min Chen ◽  
Andrej Kos ◽  
Anton Kos
Keyword(s):  
Data Storage ◽  
Communication Systems ◽  
Role Based Access Control ◽  
Business Environments ◽  
Smart Contract ◽  
Function Calls ◽  
Event Models ◽  
Role Based ◽  
Security Standards ◽  
Manufacturing Environments

Blockchain ecosystems are rapidly maturing and meeting the needs of business environments (e.g., industry, manufacturing, and robotics). The decentralized approaches in industries enable novel business concepts, such as machine autonomy and servitization of manufacturing environments. Introducing the distributed ledger technology principles into the machine sharing and servitization economy faces several challenges, and the integration opens new interesting research questions. Our research focuses on data and event models and secure upgradeable smart contract platforms for machine servitization. Our research indicates that with the proposed approaches, we can efficiently separate on- and off-chain data and assure scalability of the DApp without compromising the trust. We demonstrate that the secure upgradeable smart contract platform, which was adapted for machine servitization, supports the business workflow and, at the same time, assures common identification and authorization of all the participants in the system, including people, devices, and legal entities. We present a hybrid decentralized application (DApp) for the servitization of 3D printing. The solution can be used for or easily adapted to other manufacturing domains. It comprises a modular, upgradeable smart contract platform and off-chain machine, customer and web management, and monitoring interfaces. We pay special attention to the data and event models during the design, which are fundamental for the hybrid data storage and DApp architecture and the responsiveness of off-chain interfaces. The smart contract platform uses a proxy contract to control the access of smart contracts and role-based access control in function calls for blockchain users. We deploy and evaluate the DApp in a consortium blockchain network for performance and privacy. All the actors in the solution, including the machines, are identified by their blockchain accounts and are compeers. Our solution thus facilitates integration with the traditional information-communication systems in terms of the hybrid architectures and security standards for smart contract design comparable to those in traditional software engineering.

scholarly journals Enforcing Role-Based Access Control for Secure Data Storage in the Cloud

2011 ◽  
Vol 54 (10) ◽  
pp. 1675-1687 ◽  
Author(s):  
L. Zhou ◽  
V. Varadharajan ◽  
M. Hitchens
Keyword(s):  
Access Control ◽  
Data Storage ◽  
Role Based Access Control ◽  
Secure Data ◽  
Role Based

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

Information ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 111 ◽  
Author(s):  
Gabriel Nyame ◽  
Zhiguang Qin ◽  
Kwame Opuni-Boachie Obour Agyekum ◽  
Emmanuel Boateng Sifah
Keyword(s):  
Knowledge Management ◽  
Access Control ◽  
User Authentication ◽  
Knowledge Management System ◽  
System Model ◽  
Management Systems ◽  
Role Based Access Control ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Role Based

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.

Securing Data Storage By Extending Role-Based Access Control

2013 ◽  
Vol 3 (4) ◽  
pp. 28-37 ◽  
Author(s):  
Mamoon Rashid ◽  
Er. Rishma Chawla
Keyword(s):  
Access Control ◽  
Organizational Structure ◽  
Data Storage ◽  
Practical Implementation ◽  
Role Based Access Control ◽  
Security Community ◽  
Cloud Server ◽  
Role Based ◽  
Administrative Expenses ◽  
Performance Results

Role-based access control (RBAC) models have generated a great interest in the security community as a powerful and generalized approach to security management and ability to model organizational structure and their capability to reduce administrative expenses. In this paper, the authors highlight the drawbacks of RBAC models in terms of access control and authorization and later provide a more viable extended-RBAC model, which enhances and extends its powers to make any Cloud Server more secure by adding valuable constraints. Later the Blobs are stored on cloud server which is then accessed by the end users via this Extended RBAC model. The authors describe a practical implementation of the proposed extended RBAC based architecture and discuss the performance results with its base models. The authors later show how the users with different premiums can access this architecture in a better way and also how the unknown users for this architecture can be denied the usage of services by adding valuable constraints.

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