International Conference on Cryptologic History

The International Conference on Cryptologic History (ICCH) is a forum for the discussion of cryptologic history. Established in 2004 as 'Crypto Collectors', the group includes members located in many countries around the world. ICCH holds events both online and in-person, and also has an email list for general discussion. Live presentations are held online every fortnight, covering topics including cipher machines/devices, as well as codes and codebreaking from the world's leading experts on cryptologic history. Once a year, ICCH meets at the Friedrichshafen HAM Radio Festival, in Germany for the annual Enigma Forum and flea market. Friedrichshafen 2021 has unfortunately been cancelled due to the ongoing COVID-19 situation. Please see the press release available on our website for more information.