Reporter:Wu Weigang Sun Yat-sen Bet365 Casino loginBet365 Casino login
Report title:Bet365 Casino login on payment network technology under blockchain
Report time:2021Year10month18Sunday morning9:30-10:30
Reporting location:Bet365 Casino login BuildingConference Room 313
Report Summary:
Blockchain technology is an emerging distributed infrastructure and computing model，Widely used in many fields，Is one of the important basic technologies that triggers technological and industrial changes。But due to the strict consensus mechanism and block size restrictions，Blockchain has low transaction throughput，Poor scalability。In recent years，Off-chain transaction technology represented by payment channels and payment channel networks is an emerging research direction in academia。Payment channel technology allows a pair of nodes to safely transfer financial transactions that originally need to be submitted to the blockchain to off-chain，Thus greatly improving the performance of fund transactions between nodes。Multiple payment channels can form a Bet365 Casino login，Nodes in the network can execute transactions through multi-hop paths，Use the atomic transaction protocol to realize the cross-node transmission of funds in the network，Thus further improving the convenience and transaction efficiency of off-chain trading technology。However，Existing off-chain transaction technology is still far from mature，In convenience、Concurrency、There are still major improvements in security and transaction efficiency、Optimization space。
This report mainly covers Bet365 Casino login routing and multi-party paymentHubResearch on two aspects。In terms of Bet365 Casino login routing，We proposed a path selection algorithm based on fund tilt，Measuring the performance of the path through the calculation of the fund tilt value，And select the transaction path based on the difference in fund tilt between the pre- and post-transaction paths，Thus promoting the development of the Bet365 Casino login to a balanced state，Improve the transaction routing success rate of the entire network。Multiple paymentHubmainly realizes the interconnection of multiple Bet365 Casino login entities。We have researched and designed the only one currently that focuses on Bet365 Casino login concurrency performance，Multi-party payment taking into account both Bet365 Casino login flexibility and system securityHubProtocol。The protocol adopts the design of periodic automatic master selection and periodic status checkpoints，Avoiding the problem of single point of failure in the system，Adopt the design of separation of revenue and expenditure to greatly improve the concurrency of off-chain fund transactions，Also simplify verification of double-spending attacks，Guarantee the security Bet365 Casino login protocol。
About the speaker:
Wu Weigang，Doctor，Professor, School of Computer Science, Sun Yat-sen Bet365 Casino login、Vice Dean,Deputy Director of Guangdong Provincial Medical Big Data Engineering Technology Research Center，Deputy Director of Guangzhou Key Laboratory of Supercomputing and Big Data。separated Bet365 Casino login1998 年和2003 Obtained bachelor's and master's degrees from Xi'an Jiaotong Bet365 Casino login; in2007 Received a PhD in Computer Science from the Hong Kong Polytechnic Bet365 Casino login. At2008Joined the Department of Computer Science, Sun Yat-sen Bet365 Casino login through the "Hundred Talents Plan" of Sun Yat-sen Bet365 Casino login。2011Won funding from Guangzhou City’s “Pearl River Science and Bet365 Casino login Rising Stars” program.
Mainly engaged in research work on distributed computing systems，Research directions include: cloud computing and big data processing、Distributed consensus and blockchain、Distributed machine learning, etc.。Has published Bet365 Casino login papers at home and abroad100Bet365 Casino login articles, includingIEEE TPDS、IEEE TC、IEEE TDSC, DSN,SRDS、ICPPand dozens of Bet365 Casino login well-known journals and conference papers.Won the first prize of the Guangdong Computer Society Outstanding Paper Award in 2015。Host the key project of the National Natural Science Foundation of China、Guangdong Province Key R&D Plan Project、National Key Bet365 Casino login and Development Plan and other scientific Bet365 Casino login projects 1more than 0item.
Served asIEEE TNSM、Editorial board member of JCC and other Bet365 Casino login journals；Serves as CCF Distributed Computing and Systems Special Committee、System Software Committee、Member of the Ubiquitous Computing Committee，CCFMember of Guangzhou Branch，Director of Bet365 Casino login，Vice Chairman of Guangzhou Computer Society。
