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Here is a list of past presentations at ICCH. The most recent presentation is at the top. Click on each listing to reveal more information below, including the speaker, presentation description and to access recordings.
Note: Effort has been made to ensure that the information on each presentation is accurate and up-to-date. To suggest a correction please contact the ICCH webmaster Patrick Hayes at .
Invented in 1918 and published in 1953, John Francis Byrne's "Chaocipher" cryptographic system eluded the best amateur cryptanalysts for almost 60 years. When it was finally revealed, it surprised the cryptanalytic world for its originality. My presentation will present the complete history of this fascinating saga, the colorful characters involved in the story, how the presenter succeeded in uncovering the cipher system, how the cipher system works, and the current state of Chaocipher research. The presentation will also include important and practical lessons learned from the effort to solve Chaocipher, lessons applicable to all cryptanalytic endeavors.
August 19, 2021
Here is a list of past presentations at ICCH. The most recent presentation is at the top. Click on each listing to reveal more information below, including the speaker, as well as the presentation date and description. Presentation recordings are available separately, in the ICCH Portal.
To view upcoming ICCH presentations, click here.
Note: Effort has been made to ensure that the information on each presentation is accurate and up-to-date. To suggest a correction please contact the ICCH webmaster Patrick Hayes at info@cryptologichistory.org.
Invented in 1918 and published in 1953, John Francis Byrne's "Chaocipher" cryptographic system eluded the best amateur cryptanalysts for almost 60 years. When it was finally revealed, it surprised the cryptanalytic world for its originality. My presentation will present the complete history of this fascinating saga, the colorful characters involved in the story, how the presenter succeeded in uncovering the cipher system, how the cipher system works, and the current state of Chaocipher research. The presentation will also include important and practical lessons learned from the effort to solve Chaocipher, lessons applicable to all cryptanalytic endeavors.
August 19, 2021
