International Conference On Cryptologic History

NEWS

ICCH awarded a Golden Alice for Best Cryptographic History Event of 2020.

Welcome to the home page of the International Conference on Cryptologic History (ICCH).

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What is ICCH?

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. These are held via the video conferencing program Webex Meeting*. Once a year, ICCH meets at the Friedrichshafen HAM Radio Festival, in Germany for the annual Enigma Forum and flea market. Find out more about the Friedrichshafen event here.

*Information on Cisco Webex Meeting: You are encouraged to allow the Webex Meeting application software to be installed on your computing device. Industry research suggests that security and privacy concerns are minimal. Your favourite browser can also be used, with some reduced functionality and performance. More information about Webex is available here. It is suggested that new participants become familiar with this information in order to make the experience as easy and pleasurable as possible.

Slide show images: Images taken at Friedrichshafen HAM Radio Fest 2014. Images courtesy of Crypto Museum.

News

ICCH has been awarded a Golden Alice for the Best Cryptographic History Event of 2020. You can read more about it here.

Note: ICCH is not responsible for the content of external sites.

The next presentation will held on Saturday, 6 March 2021. Date and times are provided in UTC/GMT. Details are below:

Presentation:

Constructing Recreational Cryptograms

Speaker:
Date & time (UTC/GMT):
March 6, 2021 5:00 PM
Description (tap to expand/close):
Description:

While at least a million people worldwide solve cryptograms for fun, the vast majority of their supply is produced by only perhaps a few dozen puzzle editors—some of whom are robots. This mismatch between suppliers and consumers unfortunately supports the mass production of low-quality cryptograms. There's a wide chasm between what choosy solvers wish they could have and what publishers know they will accept as good enough. In this lecture, I’ll propose quality-control measures that conscientious cryptographers can implement to improve the satisfaction level of armchair cryptanalysts.

Crypto History News

Note: ICCH is not responsible for the content of external sites. For translation purposes, links to non-English news articles open in Google Translate and are clearly marked as such.

Divers Discover Nazi Enigma Machine Thrown Into the Baltic Sea During WWII - Smithsonian Magazine 7 December 2020

51 Years Later, Coded Message Attributed to Zodiac Killer Has Been Solved, F.B.I. Says - The New York Times 11 December 2020

Six Enigma encryption machines recovered from the Baltic Sea - Welt 21 January 2021 (English translation)

Events

ICCH Enigma Forum and Flea Market at HAM Radio Fest Friedrichshafen will be held on June 25 -- 27, 2021. More information to be announced closer to the date. Find out more about the Friedrichshafen event here.

To view upcoming presentations click here.

To view past presentations click
here.

Slide show images: Images taken at Friedrichshafen HAM Radio Fest 2013 and 2014. Images courtesy of Crypto Museum.

Register for ICCH

Thank you. You will receive a confirmation email shortly with details on how to complete registration.
⚠ Oops! Something went wrong while submitting the form. Please try again.

Welcome to the home page of the International Conference on Cryptologic History (ICCH).