On Cancellation of Transactions in Bitcoin-like Blockchains

Autor: Sara Tucci-Piergiovanni, Alejandro Ranchal Pedrosa, Önder Gürcan
Přispěvatelé: Département Ingénierie Logiciels et Systèmes (DILS), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Networks and Performance Analysis (NPA), LIP6, Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Intégration des Systèmes et des Technologies (LIST)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: 26th International Conference on COOPERATIVE INFORMATION SYSTEMS
26th International Conference on COOPERATIVE INFORMATION SYSTEMS, Oct 2018, La Valette, Malta
Lecture Notes in Computer Science ISBN: 9783030026097
OTM Conferences (1)
Popis: International audience; Bitcoin-like blockchains do not envisage any specific mechanism to avoid unfairness for the users. Hence, unfair situations, like impossibility of cancellation of transactions explicitly or having uncon-firmed transactions, reduce the satisfaction of users dramatically, and, as a result, they may leave the system entirely. Such a consequence would impact significantly the security and the sustainability of the blockchain. Based on this observation, in this paper, we focus on explicit cancellation of transactions to improve the fairness for users. We propose a novel scheme with which it is possible to cancel a transaction, whether it is confirmed in a block or not, under certain conditions. We show that the proposed scheme is superior to the existing workarounds and is imple-mentable for Bitcoin-like blockchains.
Databáze: OpenAIRE