Dilly Knox-a Reminiscence Of This Pioneer Enigma Cryptanalyst

摘要

This article describes the importance of the Knox contribution to the breaking of the plugboard German Enigma through his early work on the commercial machine; as well as his invention of "rodding" and exploitation of the Saga method of "boxing." It also covers the multi-turnover Abwehr machine through observation of the phenomenon of 'crabs and lobsters' in message indicators.