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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 .
The Zschweigert Cryptograph is one of the many cipher machine designs developed in the years following the First World War (1914-1918). It was invented by the German textile engineer Rudolf Zschweigert, who had earlier designed some programmable stitching machines. Unlike most other crypto devices of the time, the Zschweigert Cryptograph implements a transposition cipher, rather than a substitution cipher. The device was probably never used in practice. In this presentation, Klaus will explain the Zschweigert Cryptograph and its background. In the second part, Jerry will introduce his Zschweigert Cryptograph software simulator which he designed based on the details which he had earlier received from Klaus. It is hoped that this software will be made publicly available in due course.
April 5, 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.
The Zschweigert Cryptograph is one of the many cipher machine designs developed in the years following the First World War (1914-1918). It was invented by the German textile engineer Rudolf Zschweigert, who had earlier designed some programmable stitching machines. Unlike most other crypto devices of the time, the Zschweigert Cryptograph implements a transposition cipher, rather than a substitution cipher. The device was probably never used in practice. In this presentation, Klaus will explain the Zschweigert Cryptograph and its background. In the second part, Jerry will introduce his Zschweigert Cryptograph software simulator which he designed based on the details which he had earlier received from Klaus. It is hoped that this software will be made publicly available in due course.
April 5, 2021
