1986/10/01 by WOLFGANG MACHE · 1 citation
Social Sciences · Computer Science · #Intelligence, Security, War Strategy #History of Computing Technologies #Cybersecurity and Cyber Warfare Studies #Colossus computer #Morse code #Cipher #Computer science #German #Cryptanalysis #Encryption #Cryptography #Computer security #Telecommunications #History #Archaeology #Algorithm
paper · doi:10.1080/0161-118691861065
openalex publication_date 1986/10/01 · openalex created_date 2022/05/12 · openalex updated_date 2026/07/31
World War II's “Fish” cipher was a British cover word for all kinds of encrypted German radio teleprinter messages. The GC&CS at Bletchley, Buckinghamshire, did not only attack successfully Enigma traffic (Morse signals on radio links) by the electromechanical deciphering machines called BOMBES. In addition, Bletchley's electronic text processor COLOSSUS broke the German “Tunny” ciphers, generated by TELEPRINTER ATTACHMENTS “SZ”, employed by the ‘Heer’ (Army) on HF radio links.