Financial Cryptography and Data Security

This book constitutes the thoroughly refereed post-conference proceedings of the 23rd International Conference on FinancialCryptography and Data Security, FC 2019, held in St. Kitts, St. Kitts and Nevis in February 2019.The 32 revised full papers and 7 short papers were carefully selected and reviewed from 179 submissions. The papers are groupedin the following topical sections: Cryptocurrency Cryptanalysis, Measurement, Payment Protocol Security, Multiparty Protocols, Off-Chain Mechanisms, Fraud Detection, Game Theory, IoT Security and much more.