Lecture Notes in Computer Science: Information Security and Cryptology - Icisc 2023: 26th International Conference on Information Security and Cryptology, Icisc 2023, Seoul, South Korea, November 29 -

This book constitutes the refereed proceedings of the 26th International Conference on Information Security and Cryptology on Information Security and Cryptology - ICISC 2023, held in Seoul, South Korea, during November 29-December 1, 2023 The 31 full papers included in this book were carefully reviewed and selected from 78 submissions.

They were organized in topical sections as follows: Part I: cryptanalysis and quantum cryptanalysis; side channel attack; signature schemes.Part II: cyber security; applied cryptography; and korean post quantum cryptography.