2019/05/05 by Vasilios A. Siris, Siris, Vasilios A., Dimitrios Dimopoulos +7 · 1 citation
Computer Science · #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI) #cs.CR #cs.NI
paper · pdf · doi:10.48550/arxiv.1905.01665
Accepted in IEEE 5th World Forum on Internet of Things (WF-IoT), 15-18 April 2019, Limerick, Ireland. arXiv admin note: text overlap with arXiv:1905.01671
arxiv created 2019/05/05 · arxiv updated 2019/05/07
We present models for utilizing blockchain and smart contract technology with the widely used OAuth 2.0 open authorization framework to provide delegated authorization for constrained IoT devices. The models involve different tradeoffs in terms of privacy, delay, and cost, while exploiting key advantages of blockchains and smart contracts. These include linking payments to authorization grants, immutably recording authorization information and policies in smart contracts, and offering resilience through the execution of smart contract code on all blockchain nodes.