Saudi Cultural Missions Theses & Dissertations
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Item Restricted الأحكام الفقهية في استخدام العقود الذكية وأثرها في استقرار المعاملات التجارية(Helwan University, 2024) Alsubaie, Mufareh; Mohammed, FatimaSummary Title: Jurisprudential rulings on the use of smart contracts and their impact on the stability of commercial transactions. The dissertation presented an introductory analysis on the jurisprudential rulings concerning the utilization of smart contracts and their influence on the reliability of commercial transactions. The rationale behind selecting this subject matter was to examine the jurisprudential decisions regarding smart contract applications and their implications on the stability of commercial transactions, employing a methodology that relied on a descriptive and analytical framework. This approach aimed to elucidate the essence and characteristics of smart contracts, highlighting their jurisprudential impact on commercial transactions. Through an inductive method, various Arabic sources and Islamic jurisprudential studies related to smart contracts and commercial transactions were reviewed and integrated. Additionally, a deductive approach was employed, emphasizing the logical linkage between smart contracts and commercial transactions within Islamic jurisprudence. The thesis expounded upon the definition of smart contracts, their historical evolution, components, and operational mechanisms, followed by an exploration of the jurisprudential perspective on contractual concepts and their association with smart contracts. It clarified the jurisprudential interpretation of contracts and their interconnection with smart contracts, as well as the jurisprudential assessments regarding smart contract deployment. Furthermore, the dissertation delved into the repercussions of smart contracts on the reliability of commercial transactions, encompassing their implications within Islamic jurisprudence studies and the evolutionary stages of their impact on transactional stability. Finally, a comprehensive conclusion encapsulating the principal findings and recommendations of the research was presented, followed by indices and references, concluding with an index of topics. Researcher Mufarreh Al-Subaie31 0Item Restricted SCALABLE NEXT GENERATION BLOCKCHAINS FOR LARGE SCALE COMPLEX CYBER-PHYSICAL SYSTEMS AND THEIR EMBEDDED SYSTEMS IN SMART CITIES(Saudi Digital Library, 2023-07-13) Alkhodair, Ahmad; Mohanty, Saraju; Kougianos, EliasThe 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.37 0