Decentralized Access Control for IoT Based on Blockchain and Smart Contract

Xu, Ronghua; Chen, Yu; Blasch, Erik

doi:10.1002/9781119593386.ch22

Cited by 13 publications

(7 citation statements)

References 30 publications

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“…A large IoT network within the smart city can connect a huge number of resource-constrained devices with various storage and computing capabilities and it demands low latency for data gathering and access. However, the heterogeneous nature of such an IoT environment within a smart city poses significant privacy and security concerns [ 18 , 19 , 20 , 21 , 22 , 23 ].…”

Section: Background and Related Workmentioning

confidence: 99%

Entitlement-Based Access Control for Smart Cities Using Blockchain

Sabrina

Jang-Jaccard

2021

Sensors

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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.

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Section: Background and Related Workmentioning

confidence: 99%

Entitlement-Based Access Control for Smart Cities Using Blockchain

Sabrina

Jang-Jaccard

2021

Sensors

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“…Moreover, a light-weight blockchain along with the concept of identity-based distributed data possession in multi-cloud storage can be leveraged to ensure privacy and authorized access in many smart applications; additional works are required, though [14], [27], [28]. However, due to concerns on privacy and performance issues, a public blockchain is not an ideal candidate.…”

Section: B Blockchain Technologymentioning

confidence: 99%

Secure and Privacy-Preserving Stored Surveillance Video Sharing atop Permissioned Blockchain

Fitwi¹,

Chen²

2021

Preprint

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At present, more than a billion closed circuit television (CCTV) cameras are watching the world. These cameras garner a lot of visual information that is often processed and stored in remote and centralized cloud servers. Multiple occasions have revealed that this traditional approach is plagued with security and privacy breaches. The breaches could be interception of raw videos while in transit to distant surveillance analytics centers (SAC), infiltration to cameras and network video records (NVR), or abuse of cameras and stored videos. Hence, the traditional video surveillance system (VSS) cannot guarantee the protection of the privacy of individuals caught on CCTV cameras. Wherefore, this paper proposes a Secure and Privacy-preserving Stored surveillance videos sharing (SePriS) mechanism for authorized users/nodes based on smart contracts, blockchain (BC) and the enciphering of video frames using DAB, a mechanism developed based on discrete cosine transform (DCT), advanced encryption standard (AES), and block shuffling (BS) algorithm. The BC-based solution creates an environment auspicious for creating a decentralized, reliable SACs and storage sites with secure and privacy-aware sharing of stored surveillance videos across SAC nodes and by law enforcers, police departments, and courts securely connected to the SAC nodes. The experiments and analyses validate that the proposed BCbased SePriS solution achieves the design purpose.

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“…An access control mechanism defines the admittance in certain kind of resources or services, promoting security and privacy. Such a mechanism determines the system's communication rights, as well as the authorization of all involving networking entities based on security models and policies [113]. A comprehensive access control of the ESG should be able to deal efficiently with authentication and authorization procedures.…”

Section: Access Control Mechanisms In Esgmentioning

confidence: 99%