British military officer and cryptographer (1894–1982)
For the British architect and property manager, see John Hessell Tiltman (property manager).
John Hessell Tiltman
British cryptanalysts Harry Hinsley, Sir Edward Travis, and John Tiltman in Washington D.C., November 1945
Nickname(s)
"The Brig"
Born
(1894-05-25)25 May 1894 London, England
Died
10 August 1982(1982-08-10) (aged 88) Hawaii, United States
Allegiance
United Kingdom
Service/branch
British Army
Years of service
1914–1946
Rank
Brigadier
Service number
11225
Unit
King's Own Scottish Borderers
Battles/wars
World War I World War II
Awards
Military Cross (1917)[1] OBE (1930)[1] CBE (1944)[2] CMG (1954)[3] Legion of Merit (1946)[4]
Spouse(s)
Tempe Robinson
(m. 1926)
[5]
Children
Tempe Anne Denzer
Brigadier John Hessell Tiltman, CMG, CBE, MC (25 May 1894 – 10 August 1982) was a British Army officer who worked in intelligence, often at or with the Government Code and Cypher School (GC&CS) starting in the 1920s. His intelligence work was largely connected with cryptography, and he showed exceptional skill at cryptanalysis. His work in association with Bill Tutte on the cryptanalysis of the Lorenz cipher, the German teleprinter cipher, called "Tunny" (for tunafish) at Bletchley Park, led to breakthroughs in attack methods on the code, without a computer. It was to exploit those methods, at extremely high speed with great reliability, that Colossus, the first digital programmable electronic computer, was designed and built.[6]
^ ab"John H. Tiltman" (PDF). Cryptologic Quarterly. Archived from the original (PDF) on 28 October 2011. Retrieved 12 November 2011.
^"No. 36309". The London Gazette (Supplement). 31 December 1943. p. 20.
^"No. 40053". The London Gazette (Supplement). 29 December 1953. p. 5.
^"No. 38359". The London Gazette. 20 July 1948. p. 1.
^Liberty, Harold (2022). The Forgotten Giant of Bletchley Park: Brigadeer John Tiltman. Pen & Sword Books Ltd. ISBN 978 1 39908 961 6.
^Barber, Nicola (21 December 2015). Who Broke the Wartime Codes?. Capstone Press. p. 45. ISBN 978-1-4846-3559-9.
Brigadier John Hessell Tiltman, CMG, CBE, MC (25 May 1894 – 10 August 1982) was a British Army officer who worked in intelligence, often at or with the...
Tiltman might refer to: JohnTiltman (John Hessell Tiltman) (1894-1982), one of the greatest British cryptanalysts during World War II John Hessell Tiltman...
War I. He transferred to GC&CS and served there during World War II. JohnTiltman was seconded to MI1 shortly before it merged with Room 40. Gannon, 2011...
GC&CS cryptanalysts who moved from London to Bletchley Park included JohnTiltman, Dillwyn "Dilly" Knox, Josh Cooper, Oliver Strachey and Nigel de Grey...
Codebreakers Prescott Currier, William Friedman, Elizebeth Friedman, and JohnTiltman were unsuccessful. The manuscript has never been demonstrably deciphered...
known to cryptanalysts as a depth, the veteran cryptanalyst Brigadier JohnTiltman in the Research Section teased out the two plaintexts and hence the keystream...
computer Typex SYKO Ultra Alan Turing W. T. Tutte JohnTiltman Max Newman Tommy Flowers I. J. Good John Herivel Leo Marks Gordon Welchman Poem code Magic...
Navy for 2 decades+, including World War II. Abraham Sinkov US, SIS. JohnTiltman UK, Brigadier, Room 40, GC&CS, Bletchley Park, GCHQ, NSA. Extraordinary...
each new version requiring a more or less fresh cryptanalytic attack. JohnTiltman with some help from Alan Turing (at GCSB) had "solved" JN25 by 1941,...
constrained facilities than were available in wartime Britain. Colonel JohnTiltman, who later became Deputy Director at Bletchley Park, visited the US Navy...
Wales's Own Regiment of Yorkshire Brigadier Robert Tilney Brigadier JohnTiltman Brigadier Edward Joseph Todhunter Major-General David Arthur Hodges Toler...
first non-white commissioned officers in the British Army Brigadier JohnTiltman (1894–1982), cryptographer, Chief Cryptographer, Bletchley Park Frank...
settings. These were intercepted and worked on at Bletchley Park. First, JohnTiltman, a very talented GC&CS cryptanalyst, derived a keystream of almost 4000...
Soro, the Renaissance's first outstanding cryptanalyst JohnTiltman Alan Turing William T. Tutte John Wallis – 17th-century English mathematician William...
Senior staff included Alastair Denniston, Oliver Strachey, Dilly Knox, JohnTiltman, Edward Travis, Ernst Fetterlein, Josh Cooper, Donald Michie, Alan Turing...
Photograph of British cryptoanalysts Harry Hinsley, Sir Edward Travis, and JohnTiltman The following documents were leaked by Edward Snowden during the course...
constrained facilities than were available in wartime Britain. Colonel JohnTiltman, who later became Deputy Director at Bletchley Park, visited the US Navy...
paper-and-pencil methods. During World War II, British cryptanalyst JohnTiltman accomplished this with the Lorenz cipher (dubbed "Tunny"). With an average...
Tunny transmissions when the twelve-letter indicator system was in use, JohnTiltman, Bletchley Park's veteran and remarkably gifted cryptanalyst, studied...
GC&CS cryptanalysts who moved from London to Bletchley Park included JohnTiltman, Dillwyn "Dilly" Knox, Josh Cooper, and Nigel de Grey. These people had...
Prize and Duff Cooper Prize winner and was shortlisted for the Hessell-Tiltman Prize. In addition, Mazower is more broadly concerned with 20th-century...
Transport Code here in 1943, the first high-level Japanese Army code broken. JohnTiltman broke prewar Russian and Japanese codes at Simla and Abbottabad. The...
February 1942. The courses were directed by Royal Army cryptographer, Col. JohnTiltman, and retired Royal Navy officer, Captain. Oswald Tuck. Richard Sorge...
a time Pollitt's personal secretary. In Operation MASK (1934–1937), JohnTiltman and his colleagues of the Government Code and Cypher School were able...
was invented by British Army Intelligence Officer and cryptographer JohnTiltman and was ready for trial by April 1941 but was not adopted officially...
From 1936 many messages were sent back to London, to be deciphered by JohnTiltman, who broke the first version of JN-25 in 1939. In August 1939, shortly...
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