Abstract
Smart cities use the Internet of Things (IoT) devices such as connected sensors, lights, and meters to collect and analyze data to improve infrastructure, public utilities, and services. However, the true potential of smart cities cannot be leveraged without addressing many security concerns. In particular, there is a significant challenge for provisioning a reliable access control solution to share IoT data among various users across organizations. We present a novel entitlement-based blockchain-enabled access control architecture that can be used for smart cities (and for any ap-plication domains that require large-scale IoT deployments). Our proposed entitlement-based access control model is flexible as it facilitates a resource owner to safely delegate access rights to any entities beyond the trust boundary of an organization. The detailed design and implementation on Ethereum blockchain along with a qualitative evaluation of the security and access control aspects of the proposed scheme are presented in the paper. The experimental results from private Ethereum test networks demonstrate that our proposal can be easily implemented with low latency. This validates that our proposal is applicable to use in the real world IoT environments.
Highlights
Internet of Things (IoT) today is making an enormous impact in our daily life by allowing smart devices and sensors connected to the Internet to provide valuable services.providing low-cost computing and interconnectivity
We propose a novel entitlement-based blockchain-enabled access control architecture for a large-scale IoT environment where resources can be shared across multiple organizations
For providing access to a TPGO for one or many resources, the resource owner (RO) organization deploys a smart contract in blockchain and subsequently deploys one or many TPGOEntToken by calling a function on the SC
Summary
Internet of Things (IoT) today is making an enormous impact in our daily life by allowing smart devices and sensors connected to the Internet to provide valuable services. The traditional AC approaches, such as the Role-Based Access Control (RBAC), the Attribute-Based Access Control (ABAC), and Capability-Based Access Control (CapBAC), are no longer able to provide a scalable, manageable, and efficient method for IoT environments [5,6,7,8] This challenge can be magnified especially in large-scale IoT environments where the data is shared across multiple domains, including third parties. To address the limitations stated above, we present a novel entitlement-based access control architecture that is flexible, scalable, and supports low-latency for smart cities and any other large-scale IoT applications. We propose a novel entitlement-based blockchain-enabled access control architecture for a large-scale IoT environment where resources can be shared across multiple organizations.
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