Abstract
A ciphertext-only attack on the pin wheel patterns of the Hagelin CD-57 Cryptographer is described. The method is also applicable to some earlier Hagelin machines of the pin wheel and lug variety, for example the M-209. The only prior knowledge required is the setting of the lugs and the plain text frequency for the language of the message. The method is extended to finding the lug and pin settings of the M-209 using a longer message.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
