Distributed Access Control Model Research Articles

A blockchain-based DAC distributed access control model

Access control systems allow organizations to control user access to their resources with high reliability and availability. Blockchain technology can help in this case. However, when it comes to storing access control data, especially the matrix that defines user rights to files (DAC model) may be too large to be handled by blockchain as is. Thus, a decentralized access control model that results in a small amount of data storage on the blockchain can be beneficial in terms of the reliability of blockchain networks while allowing it to scale by adding large numbers of users and files. We present access control DAC model which uses a Merkle tree to store data, minimizes the storage size on the blockchain. This solution can be used with a variety of file storage systems, regardless of the used file storage technology. The proposed approach suggests additionally caching some requests to increase scaling. The proposed model was tested on 500 objects in a distributed environment.

An adaptive distributed access control model for IoT and fog computing environments

An adaptive distributed access control model for IoT and fog computing environments

Identification of Key Nodes in Distributed Access Control Model

Background: With the complexity of the network structure and the diversity of access, the access control model of distributed permissions management came into being. Aims: The central idea of the model is to store the access permissions of all nodes in the model to the network nodes covered by the access control model, and let the neighboring nodes act as access control agents. That is, each node in the model is a routing node in the execution of a certain access control. Methods: Considering the execution parameters of distributed access control model, the evaluation index of key node identification technology in distributed authorized access control model is established. Access control to achieve the management of distributed permissions. It is necessary to protect the key nodes in the model, increase the robustness of the access control model and support the smooth implementation of distributed access. Results: This paper presents a key node recognition algorithm based on distributed access control magic. The application of key node recognition algorithm in distributed access control model in traditional network is compared. Conclusion: Compared with the traditional key node recognition algorithm in the distributed access control model, the algorithm proposed in this paper is more accurate.

Taming access control security: extending capabilities using the views relationship

AbstractThe ‘views’ relationship indicates how an object‐oriented design can be clearly separated into objects and their corresponding interface. This paper uses the concept of ‘views’ in order to achieve full separation between the application and the security policy in the design and implementation. The result is achieved by providing a model for capabilities using ‘views’ that is richer than the traditional capability model. In addition, a distributed access control model is shown to be effective through the use of Secure Object Communication Channels (SOCCs) to allow for secure connections at the abstract object level. This security is applicable in the e‐commerce application domain, bringing security directly to the application abstraction level. Copyright © 2002 John Wiley & Sons, Ltd.