Shin'ichiro Matsuo – författare

This book constitutes the refereed proceedings of two workshops held at the 24th International Conference on Financial Cryptography and Data Security, FC 2020, in Kota Kinabalu, Malaysia, in February 2020. The 39 full papers and 3 short papers presented in this book were carefully reviewed and selected from 73 submissions. The papers feature four Workshops: The 1st Asian Workshop on Usable Security, AsiaUSEC 2020, the 1st Workshop on Coordination of Decentralized Finance, CoDeFi 2020, the 5th Workshop on Advances in Secure Electronic Voting, VOTING 2020, and the 4th Workshop on Trusted Smart Contracts, WTSC 2020.The AsiaUSEC Workshop contributes an increase of the scientific quality of research in human factors in security and privacy. In terms of improving efficacy of secure systems, the research included an extension of graphical password authentication. Further a comparative study of SpotBugs, SonarQube, Cryptoguard and CogniCrypt identified strengths in each and refined the need for improvements in security testing tools.The CoDeFi Workshop discuss multi-disciplinary issues regarding technologies and operations of decentralized finance based on permissionless blockchain. The workshop consists of two parts; presentations by all stakeholders, and unconference style discussions.The VOTING Workshop cover topics like new methods for risk-limited audits, new ethods to increase the efficiency of mixnets, verification of security of voting schemes election auditing, voting system efficiency, voting system usability, and new technical designs for cryptographic protocols for voting systems, and new way of preventing voteselling by de-incentivising this via smart contracts.The WTSC Workshop focuses on smart contracts, i.e., self-enforcing agreements in the form of executable programs, and other decentralized applications that are deployed to and run on top of specialized blockchains.

This book constitutes revised selected papers from the workshops that were affiliated with the 26th International Conference on Financial Cryptography and Data Security, FC 2022, which was held in Grenada during May 2022. FC 2022 presents the following four workshops:CoDecFin 2022: 3rd Workshop on Coordination of Decentralized FinanceDeFi 2022: 2nd Workshop on Decentralized FinanceVoting 2022: 7th Workshop on Advances in Secure Electronic VotingWTSC 2022: 6th Workshop on Trusted Smart Contracts

They stem from the following workshops:CoDecFin 2022: 3rd Workshop on Coordination of Decentralized FinanceDeFi 2022: 2nd Workshop on Decentralized FinanceVoting 2022: 7th Workshop on Advances in Secure Electronic VotingWTSC 2022: 6th Workshop on Trusted Smart Contracts

This book constitutes the proceedings of the workshops that have been held in conjunction with the 28th International Conference on Financial Cryptography, FC 2024, which took place in Willemstad, Curaçao, during March 4-8, 2024. The total of 23 papers included in this book stem from the following workshops: 9th Workshop on Advances in Secure Electronic Voting Schemes (Voting 2024), focusing on secure voting protocols, has accepted 5 papers out of 13 submissions;4th Workshop on Decentralized Finance (DeFI 2024), focusing on decentralized finance and a blockchain powered peer-to-peer financial system, has received 32 submissions and accepted 4 papers for inclusion in this book8th Workshop on Trusted Smart Contracts (WTSC 2024), dealing with smart contracts and other decentralised applications, accepted 5 papers from 11 submissions; and the5th Workshop on Coordination of Decentralized Finance (CoDecFin 2024), discussing multi-disciplinary issues regarding technologies and operations of decentralized finance based on permissionless blockchain, has accepted 8 full and 1 short paper from 15 submissions.

This bookconstitutes the refereed proceedings of the Second International Conference onSecurity Standardisation Research, SSR 2015, held in Tokyo, Japan, in December2015. The 13papers presented in this volume were carefully reviewed and selected from 18submissions. analysis on cryptographic algorithm; andtrust and formal analysis.

This book constitutes the refereed proceedings of four workshops held at the 25th International Conference on Financial Cryptography and Data Security, FC 2021, held virtually, in March 2021.The workshops are as follows: CoDecFin: The Second Workshop on Coordination of Decentralized FinanceDeFi 2021 : First Workshop on Decentralized Finance VOTING 2021: Sixth Workshop on Advances in Secure Electronic VotingWTSC 2021:  Fifth Workshop on Trusted Smart Contracts

This book analyzes the fundamental issues faced when blockchain technology is applied to real-life applications. Also explained is the reason why blockchain is hard to adopt for real-life problems but is valuable as a foundation for flexible ecosystems.