Improved Correctness and Scalability for Blockchains

access_time September 25, 2019 at 02:00PM until September 25, 2019 at 04:00PM
place Sala C10, Pavilhão Central (Piso 1), IST, Alameda

Blockchain cryptocurrencies such as Ethereum offer a secure and decentralized transaction system and have the potential to replace legacy financial transaction systems. Despite their potential, they suffer from transaction ordering and admission problems. These stem from having miners deciding the transaction execution order, as well as which transactions are admitted in the blockchain. Transaction censorship, transaction removal due to double-spending attacks and long transaction commit delays are some of the resulting problems. In this dissertation, we will propose new algorithms to mitigate these fundamental problems, resorting to principles and techniques from epidemic broadcast algorithms and weakly-consistent replication.

local_offer CAT exam
person Candidate: Paulo Jorge Raposo Duarte Adrião Mendes da Silva
supervisor_account Advisor: Prof. João Pedro Faria Mendonça Barreto/ Prof. Miguel Ângelo Marques de Matos