Flexible, Decentralized Access Control for Smart Buildings with Smart Contracts
Leepakshi Bindra, Kalvin Eng, Omid Ardakanian, Eleni Stroulia

TL;DR
This paper proposes a flexible, secure, and decentralized access control system for smart buildings using blockchain smart contracts, reducing administrative overhead and enabling fine-grained permission management.
Contribution
It introduces a novel methodology leveraging blockchain smart contracts and building models to manage access rights in smart buildings more flexibly and securely.
Findings
Reduces administrative overhead in access management.
Provides fine-grained, auditable access control.
Demonstrated in a real office building scenario.
Abstract
Large commercial buildings are complex cyber-physical systems containing expensive and critical equipment that ensure the safety and comfort of their numerous occupants. Yet occupant and visitor access to spaces and equipment within these buildings are still managed through unsystematic, inefficient, and human-intensive processes. As a standard practice, long-term building occupants are given access privileges to rooms and equipment based on their organizational roles, while visitors have to be escorted by their hosts. This approach is conservative and inflexible. In this paper, we describe a methodology that can flexibly and securely manage building access privileges for long-term occupants and short-term visitors alike, taking into account the risk associated with accessing each space within the building. Our methodology relies on blockchain smart contracts to describe, grant, audit,…
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