Preface

The program committee is delighted to present the proceedings of the 8th International Conference on Historical Cryptology (HISTOCRYPT 2025).The conference will be held on June 16-18, 2025 in Pozna, Poland.Following the tradition of previous HISTOCRYPT conferences, HISTOCRYPT addresses all aspects of historical cryptography and cryptanalysis.It is inherently cross-disciplinary, incorporating work from various fields such as mathematics, history, computer science, AI, computational linguistics, linguistics, and image processing.The conference's topics include, but are not limited to, the use of cryptography in military, diplomacy, business, and other areas, the use of automatic methods including AI in the field of historical cryptology, unsolved historical cryptograms, cipher machines, the history of cryptography, the roots of modern ciphers in historical cryptology, linguistic aspects of cryptology, the influence of cryptography on the course of history, cryptology and its connections to neighbouring fields of study, and teaching and promoting cryptology in schools, universities, and the public.The scientific program was compiled by an international scientific program committee, consisting of researchers in computer science, cryptology, history, intelligence, language technology, and linguistics.The program committee welcomed submissions in two tracks: regular papers up to 10 pages (including appendices, excluding references) on substantial, original, and unpublished research, including evaluation results, where appropriate; and short papers up to 4 pages (including appendices, excluding references) on smaller, focused contributions, work in progress, negative results, surveys, tutorials, or opinion pieces.The conference received 24 submissions from all over the world, including from Albania, Australia, Austria,