Results 11 to 20 of about 175 (139)
Asynchronous Federated Learning System Based on Permissioned Blockchains
Sensors, 2022 The existing federated learning framework is based on the centralized model coordinator, which still faces serious security challenges such as device differentiated computing power, single point of failure, poor privacy, and lack of Byzantine fault ...
Rong Wang, Wei-Tek Tsai
exaly +3 more sources
Transactional properties of permissioned blockchains [PDF]
Software-Intensive Cyber-Physical Systems, 2019 12 pages. This is a pre-print of an article published in SICS Software-Intensive Cyber-Physical Systems.
Ghareeb Falazi +2 more
exaly +3 more sources
On the Use of Proof-of-Work in Permissioned Blockchains: Security and Fairness
IEEE Access, 2022 In permissioned blockchains, a set of identifiable miners validates transactions and creates new blocks. In scholarship, the proposed solution for the consensus protocol is usually inspired by the Byzantine fault tolerance (BFT) based on voting rather ...
Sabina Rossi +2 more
exaly +3 more sources
A Blockchain Oracle Interoperability Technique for Permissioned Blockchain
IEEE AccessBlockchain interoperability has become an essential requirement for the advancement of blockchain technology in numerous fields. Enterprise organizations are increasingly utilizing permissioned blockchains to manage and store their organizations’ ...
Asma A. Alhussayen +3 more
doaj +2 more sources
Realizing the Role of Permissioned Blockchains in a Systems Engineering Lifecycle
Systems, 2020 A key requirement for an integrated digital tool chain is secure access and control of data assets. Not all stakeholders will have the same access to or control over the flow of information, some will be able to input or change data whilst others will ...
Demetrios Joannou +2 more
exaly +3 more sources
A Challenge-Response Assisted Authorisation Scheme for Data Access in Permissioned Blockchains
Sensors, 2020 Permissioned blockchains can be applied for sharing data among permitted users to authorise the data access requests in a permissioned blockchain. A consensus network constructed using pre-selected nodes should verify a data requester’s credentials to ...
Chao Liu +2 more
exaly +3 more sources
Blockchain: Research and Applications, 2022 Given the availability of several blockchain technologies in permissioned contexts, blockchain application designers have to cope with the increasing complexity of choosing which technology and consensus algorithm best fit a specific use case.
Antonio Corrádi
exaly +3 more sources
A Gateway-based Interoperability Solution for Permissioned Blockchains
2022 XVLIII Latin American Computer Conference (CLEI), 2022 <p>During the last years, interoperability has become one of the main challenges within blockchain research as blockchains increasingly require integration between each other. Indeed, blockchains work by design in silos of information as interoperability is not a native feature.
Guzman Llambías, Raúl Ruggia
exaly +2 more sources
Mitosis: Practically Scaling Permissioned Blockchains [PDF]
Annual Computer Security Applications Conference, 2021 Scalability remains one of the biggest challenges to the adoption of permissioned blockchain technologies for large-scale deployments. Permissioned blockchains typically exhibit low latencies, compared to permissionless deployments -- however at the cost of poor scalability.
Giorgia Azzurra Marson +4 more
openaire +2 more sources
Beacons and Blockchains in the Mobile Gaming Ecosystem: A Feasibility Analysis
Sensors, 2021 We explore the adoption of the Internet of Things (IoT) and Distributed Ledger Technologies (DLTs), such as blockchains, in mobile gaming, focusing on ecosystem expansion and diversification, customer attraction and retention, exploitation of context ...
Iakovos Pittaras +3 more
doaj +1 more source