Chris Christensen. The Imperial Japanese Navy IKA Cipher Machine. In Carola Dahlke, editor, Proceedings of the 4th International Conference on Historical Cryptology, HistoCrypt 2021, Amsterdam, The Netherlands, postponed to June 20-22, 2022. Volume 183 of Linköping Electronic Conference Proceedings, pages 38-47, Linköping University Electronic Press, 2021. [doi]
Abstract is missing.