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- W2970488051 abstract "Highly distributed smart environments, such as Smart Cities, require scalable architectures to support a large number of stakeholders that share Internet of Things (IoT) resources and services. We focus on authorization solutions that regulate access of users to smart objects and consider scenarios where a large number of smart objects owners want to share the resources of their devices in a secure way. A popular solution is to delegate third parties, such as public Cloud services, to mediate authorization procedures among users and smart objects. This approach has the disadvantage of assuming third parties as trusted proxies that guarantee correctness of all authorization procedures. In this paper, we propose a system that allows to audit authorizations managed by third parties, to detect and expose their misbehaviors to users, smart objects owners and, possibly, to the public. The proposed system is inspired by the transparency projects used to monitor Web Certification Authorities, but improves over existing proposals through a twofold contribution. First, it is specifically designed for IoT devices, provided with little resources and distributed in constrained environments. Second, it complies to current standard authorization protocols and available open-source software, making it ready to be deployed." @default.
- W2970488051 created "2019-09-05" @default.
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- W2970488051 date "2019-07-01" @default.
- W2970488051 modified "2023-10-17" @default.
- W2970488051 title "Authorization Transparency for Accountable Access to IoT Services" @default.
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- W2970488051 doi "https://doi.org/10.1109/iciot.2019.00027" @default.
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