Blockchain Technology for Intelligent Environments

Autor: Spyros Voulgaris, Nikos Fotiou, Vasilios A. Siris, George C. Polyzos, Mikael Jaatinen, Yannis Oikonomidis

Publikováno v: Future Internet, Vol 11, Iss 10, p 213 (2019)

In the last few years, we have been witnessing the convergence of the physical with the digital world. The Internet of Things (IoT) is progressing at a fast pace, and IoT devices are becoming pervasive in our physical environments, bringing the visio

Externí odkaz: https://doaj.org/article/2a4dbc72b848456eba9dd5b3d5d5dbaf

Decentralized authorization in constrained IoT environments exploiting interledger mechanisms

Autor: Spyros Voulgaris, George C. Polyzos, Vasilios A. Siris, Nikos Fotiou, Dimitrios Dimopoulos

Publikováno v: Computer Communications

We present models that utilize smart contracts and interledger mechanisms to provide decentralized authorization for constrained IoT devices. The models involve different tradeoffs in terms of cost, delay, complexity, and privacy, while exploiting ke

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1b8ba8f5dd406e6d5a7b24156daf1d5
https://doi.org/10.1016/j.comcom.2020.01.030

Distributed Applications and Interoperable Systems : 22nd IFIP WG 6.1 International Conference, DAIS 2022, Held As Part of the 17th International Federated Conference on Distributed Computing Techniques, DisCoTec 2022, Lucca, Italy, June 13-17, 2022, Proceedings

Autor: David Eyers, Spyros Voulgaris

This book constitutes the refereed proceedings of the 22nd IFIP WG 6.1 International Conference on Distributed Applications and Interoperable Systems, DAIS 2022, held in Lucca, Italy, in June 2022, as part of the 17th International Federated Conferen

Dietcoin: Hardening Bitcoin Transaction Verification Process For Mobile Devices

Autor: Marc X. Makkes, François Taïani, Davide Frey, Pierre-Louis Roman, Spyros Voulgaris

Publikováno v: Proceedings of the VLDB Endowment (PVLDB)
Proceedings of the VLDB Endowment (PVLDB), 2019, 12 (12), pp.1946-1949. ⟨10.14778/3352063.3352106⟩
Proceedings of the VLDB Endowment (PVLDB), VLDB Endowment, 2019, 12 (12), pp.1946-1949. ⟨10.14778/3352063.3352106⟩
Proceedings of the VLDB Endowment, 12(12), 1946-1949. Very Large Data Base Endowment Inc.
Frey, D, Makkes, M X, Roman, P L, Taiani, F & Voulgaris, S 2018, ' Dietcoin : Hardening bitcoin transaction verification process for mobile devices ', Proceedings of the VLDB Endowment, vol. 12, no. 12, pp. 1946-1949 . https://doi.org/10.14778/3352063.3352106

Distributed ledgers are among the most replicated data repositories in the world. They offer data consistency, immutability, and auditability, based on the assumption that each participating node locally verifies their entire content. Although their

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69b0d955941113b4631aac5c0c3e44c2
https://inria.hal.science/hal-02315154/file/dietcoin_demo_vldb2019.pdf

IoT Resource Access utilizing Blockchains and Trusted Execution Environments

Autor: George C. Polyzos, Spyros Voulgaris, Nikos Fotiou, Vasilios A. Siris, Dimitrios Dimopoulos

Publikováno v: GIoTS
2019 Global IoT Summit (GIoTS)

We consider IoT resources with a Trusted Execution Environment (TEE) and propose a model to provide trusted resource access that is linked to blockchain payments, ensuring the integrity and confidentiality of the IoT data. The model is built on the w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d434edbfa9055077f4a384f3f04bcd86
https://doi.org/10.1109/giots.2019.8766403