Information Security

This book constitutes the proceedings of the 25th International Conference on Information Security, ISC 2022, which took place in Bali, Indonesia, in December 2022. The 21 full papers and 8 short papers presented in this volume were carefully reviewed and selected from 72 submissions. The contributions were organized in topical sections as follows: Cryptography; Post-Quantum Cryptography; Cryptanalysis; Blockchain; Email and Web Security; Malware; and AI Security.