MASc Seminar Notice - Aiden FengExport this event to calendar

Monday, January 24, 2022 — 1:30 PM EST

Candidate: Aiden Feng
Title: A Design of Electronic MedicalRecord System based on Permissioned Blockchain

Date: January 24, 2022
Time: 13:30
Place: online
Supervisor(s): Gong, Guang

Abstract:


Blockchain, due to its decentralized, verifiable, and security features, is increasingly used in more and more scenarios, but the
original public chain cannot meet the needs of some enterprise or group financial scenarios or medical scenarios, and these more
segmented special application scenarios have added many requirements for security, identity and role definition to the blockchain
system, so people have launched a lot of research on permissioned blockchain. However, the Practical Byzantine Fault-Tolerant
(PBFT) based permissioned chain is no longer able to meet the increasing demand of nodes in today's healthcare system due to the
shortcomings such as high communication volume and poor scalability. In this thesis, we will explore the application of
permissioned blockchain in the medical scenario, and try to optimize the communication volume of PBFT by cascading network,
optimize its communication complexity from O(n2) to O(n), and add a credit mechanism to reduce the probability of key nodes
becoming Byzantine nodes. We also add a series of scalability mechanisms and new node verification addition and removal
mechanisms to compensate for the disadvantage of the non-dynamic number of nodes in the original PBFT.

Location 
Online


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