SCALABLE NEXT GENERATION BLOCKCHAINS FOR LARGE SCALE COMPLEX CYBER-PHYSICAL SYSTEMS AND THEIR EMBEDDED SYSTEMS IN SMART CITIES

dc.contributor.advisorMohanty, Saraju
dc.contributor.advisorKougianos, Elias
dc.contributor.authorAlkhodair, Ahmad
dc.date.accessioned2023-08-13T06:24:28Z
dc.date.available2023-08-13T06:24:28Z
dc.date.issued2023-07-13
dc.description.abstractThe original FlexiChain and its descendants are a revolutionary distributed ledger technology (DLT) for cyber-physical systems (CPS) and their embedded systems (ES). FlexiChain, a DLT implementation, uses cryptography, distributed ledgers, peer-to-peer communications, scalable networks, and consensus. FlexiChain facilitates data structure agreements. This thesis offers a Block Directed Acyclic Graph (BDAG) architecture to link blocks to their forerunners to speed up validation. These data blocks are securely linked. This dissertation introduces Proof of Rapid Authentication, a novel consensus algorithm. This innovative method uses a distributed file to safely store a unique identifier (UID) based on node attributes to verify two blocks faster. This study also addresses CPS hardware security. A system of interconnected, user-unique identifiers allows each block's history to be monitored. This maintains each transaction and the validators who checked the block to ensure trustworthiness and honesty. We constructed a digital version that stays in sync with the distributed ledger as all nodes are linked by a NodeChain. The ledger is distributed without compromising node autonomy. Moreover, FlexiChain Layer 0 distributed ledger is also introduced and can connect and validate Layer 1 blockchains. This project produced a DAG-based blockchain integration platform with hardware security. The results illustrate a practical technique for creating a system depending on diverse applications' needs. This research's design and execution showed faster authentication, less cost, less complexity, greater scalability, higher interoperability, and reduced power consumption.
dc.format.extent195
dc.identifier.urihttps://hdl.handle.net/20.500.14154/68864
dc.language.isoen_US
dc.publisherSaudi Digital Library
dc.subjectBlockchain Technology
dc.subjectDistributed Ledger Technology (DLT)
dc.subjectCyber-Physical Systems (CPS)
dc.subjectEmbedded Systems (EM)
dc.subjectInternet of Things (IoT)
dc.subjectIntelligent Transportation (ITS)
dc.titleSCALABLE NEXT GENERATION BLOCKCHAINS FOR LARGE SCALE COMPLEX CYBER-PHYSICAL SYSTEMS AND THEIR EMBEDDED SYSTEMS IN SMART CITIES
dc.typeThesis
sdl.degree.departmentComputer Science and Engineering
sdl.degree.disciplineThe employement of Distributed Ledger Technology (DLT) such as blockchain technology in Cyber Physical Systems (CPS) and their embedded systems.
sdl.degree.grantorUniversity of North Texas
sdl.degree.nameDoctor of Philosophy

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