Data-centric workflows across organizations are gaining more and more popularity. To automate this process, the traditional approaches centralise related data from different organizations to the cloud, and then use a ...
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ISBN:
(纸本)9781665463676
Data-centric workflows across organizations are gaining more and more popularity. To automate this process, the traditional approaches centralise related data from different organizations to the cloud, and then use a workflow engine to complete cross-organizational collaboration. There are limitations of those approaches, such as the requirement of data centralisation which could lead to the leakage of critical data. In this work, we present a workflow platform for consuming distributed data based on Kubernetes and JupyterFlow, and use blockchain technology to guarantee security and privacy through empowering the data owner with control of their own data. To reduce replication and network throughput, the blockchain only contains the meta data referring to the data in off-chain storage. We develope a JupyterHub extension to support data registration and query, and used the RESTFul API to connect the web application with the blockchain network. Finally, we demonstrate a simple data processing use case as proof-of-concept to validate our proposed platform.
There is a rising concern about authorization in IoT environments to be appropriately designed and applied, due to smart things surge to be part of people's daily lives on one hand, and the amount of personal/priv...
详细信息
ISBN:
(纸本)9781450392297
There is a rising concern about authorization in IoT environments to be appropriately designed and applied, due to smart things surge to be part of people's daily lives on one hand, and the amount of personal/private information they utilize, on the other hand. Different accesscontrol systems have been proposed for different IoT environments, many are remaining only at a conceptual level. In this paper, we propose a decentralized, ledger-based, publish-subscribe based architecture for the administration of access in a smart home IoT environment to preside at the assignments of underlying operational authorizations. Proposed architecture is endorsed by a proof-of-concept implementation, which utilizes smart contracts to ensure the integrity of administration supplemented by intrinsic benefits of blockchain to be distributed and transparent. Despite the rising hype around the blockchain technology that stokes its utilization in different domains, utilizing it for accesscontrol purposes is not yet promising. Our implementation results assure using blockchain for administrative accesscontrol is propitious, while is not yet appropriate for operational accesscontrol, which have been mainly the focus of previously proposed blockchain-based access control works.
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