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DTSTAMP:20260910T154417Z
DESCRIPTION:The Internet of Things (IoT) has demonstrated promising growth\
 , as it is crucial to numerous application domains in smart ecosystems\, s
 uch as the smart city. Decentralization can help achieve growth\, with pre
 vious research proposing the use of decentralized blockchain technology in
  IoT ecosystems as\, among others\, it can offer cryptographically trustwo
 rthy interactions\, non-repudiable smart contracts\, and interoperability 
 between stakeholders.\n\nHowever\, blockchain-based IoT ecosystems come wi
 th challenges. Blockchain infrastructure may not be feasible due to archit
 ectural limitations resulting in inadequate performance. IoT communication
  and access to the blockchain also need securing\, while system interopera
 bility\, efficiency\, and cost are worth considering.\n\nThis thesis first
  proposes a security framework to secure multiple IoT systems simultaneous
 ly across heterogeneous platforms. It can secure communication and access 
 to the blockchain through two-step authentication and encryption. The fram
 ework is designed and built into a multi-functional secure gateway that co
 mplies with security level 2 of the Federal Information Processing Standar
 d (FIPS) 140-2.\n\nAfterward\, it explores the performance of blockchain a
 nd the difficulties in scaling through more conventional approaches\, part
 icularly for the private\, permissioned blockchain. An enhancement address
 ing architectural limitations and the limited performance of blockchain in
 frastructure is proposed. A throughput increase is achieved through a mult
 iple-layer network topology that partitions the blockchain network into hi
 erarchical networks and allows blockchain transactions to be processed sim
 ultaneously.\n\nCombining the secure gateway and multiple-layer network to
 pology can achieve a secure\, high-performing blockchain-based IoT infrast
 ructure. In doing so\, this thesis can help address the various challenges
  identified.\n
DTSTART:20230706T140000Z
DTEND:20230706T160000Z
LOCATION:Room 603\, McConnell Engineering Building\, CA\, QC\, Montreal\, H
 3A 0E9\, 3480 rue University
SUMMARY:PhD defence of Anastasios Alexandridis – Improving Access Security 
 and Throughput of Blockchain-based Internet of Things Infrastructure
URL:https://www.mcgill.ca/ece/channels/event/phd-defence-anastasios-alexand
 ridis-improving-access-security-and-throughput-blockchain-based-348962
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