CQPC 2025
Classic, Quantum, and Post-Quantum Cryptography 2025

Table of Contents

• Preface
  Summary: There were 11 papers submitted for peer-review to this workshop. Out of these, 6 papers were accepted for this volume, 5 as regular papers and 1 as short papers.

• Development and Research of a Non-Periodic Pseudorandom Number Generator 1-12
  Andriy Horpenyuk , Mykola Horpenyuk , Nataliya Luzhetska , Oleksandr Horpenyuk , Аlona Desiatko

• Adaptive Methods for Embedding Digital Watermarks to Protect Audio and Video Images in Information and Communication Systems 13-31
  Pavlo Skladannyi , Yuliia Kostiuk , Svitlana Rzaieva , Bohdan Bebeshko , Nataliia Korshun

• Image Steganography Method using LSB and AES Encryption Algorithm 32-44
  Tamara Radivilova , Ihor Dobrynin , Arkadii Snihurov , Svitlana Stanhei , Serhii Bulba

• Application of Statistical and Neural Network Algorithms in Steganographic Synthesis and Analysis of Hidden Information in Audio and Graphic Files 45-65
  Yuliia Kostiuk , Pavlo Skladannyi , Karyna Khorolska , Volodymyr Sokolov , Hennadii Hulak

• Preparing IT Infrastructure for the Quantum Age: Post-Quantum SSH 66-75
  Pavlo Vorobets , Andii Horpenyuk , Ivan Opirskyy

• On Algebraic Graphs of Large Girth and New Families of Message Authentication Codes (short paper) 76-84
  Vasyl Ustimenko , Oleksandr Pustovit