Kouichi Sakurai & Chunhua Su 
Science of Cyber Security – SciSec 2022 Workshops 
AI-CryptoSec, TA-BC-NFT, and MathSci-Qsafe 2022, Matsue, Japan, August 10-12, 2022, Revised Selected Papers

This volume constitutes the papers of several workshops which were held in conjunction with the 4th International Conference on Science of Cyber Security Workshops, Sci Sec 2022, held in Matsue, Japan, in August 10-12, 2022. The 15 revised full papers and 3 posters were presented in this book were carefully reviewed and selected from 30 submissions.They were organized in topical sections as follows: AI Crypto and Security Workshop (AI-Crypto Sec); Theory and Application of Blockchain and NFT Workshop (TA-BC-NFT); and Mathematical Science of Quantum Safety and its Application Workshop (Math Sci-Qsafe).