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W. T. Tutte
British-Canadian codebreaker and mathematician (1917-2002) · United Kingdom · On the map · Academics · Died at 84
William Thomas Tutte was an English and Canadian code breaker and mathematician. During the Second World War, he made a fundamental advance in cryptanalysis of the Lorenz cipher, a major Nazi German cipher system which was used for top-secret communications within the Wehrmacht High Command.
W. T. Tutte is read about 65 times a day, in 22 languages.
A typical day, 30 days to 6 November 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 152 days, one point a day.
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2009Officer of the Order of CanadaAward2002Died2 May 20022001CRM-Fields-PIMS prizeAward1987Fellow of the Royal SocietyAward1982Killam PrizeAward1975Henry Marshall Tory MedalAward1958Fellow of the Royal Society of CanadaAward1917Born14 May 1917
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Media & music
Photos 2
![The Lorenz SZ machines had 12 wheels each with a different number of cams (or "pins").
Wheel number
123456789101112
BP wheel name[11]
ψ
1
{\displaystyle \psi _{1}}
ψ
2
{\displaystyle \psi _{2}}
ψ
3
{\displaystyle \psi _{3}}
ψ
4
{\displaystyle \psi _{4}}
ψ
5
{\displaystyle \psi _{5}}
μ
{\displaystyle \mu }
37
μ
{\displaystyle \mu }
61
χ
1
{\displaystyle \chi _{1}}
χ
2
{\displaystyle \chi _{2}}
χ
3
{\displaystyle \chi _{3}}
χ
4
{\displaystyle \chi _{4}}
χ
5
{\displaystyle \chi _{5}}
Number of cams (pins)
434751535937614131292623](https://upload.wikimedia.org/wikipedia/commons/thumb/3/39/SZ42-6-wheels-lightened.jpg/1280px-SZ42-6-wheels-lightened.jpg?utm_source=en.wikipedia.org&utm_campaign=parser&utm_content=thumbnail)
The Lorenz SZ machines had 12 wheels each with a different number of cams (or "pins").
Wheel number
123456789101112
BP wheel name[11]
ψ
1
{\displaystyle \psi _{1}}
ψ
2
{\displaystyle \psi _{2}}
ψ
3
{\displaystyle \psi _{3}}
ψ
4
{\displaystyle \psi _{4}}
ψ
5
{\displaystyle \psi _{5}}
μ
{\displaystyle \mu }
37
μ
{\displaystyle \mu }
61
χ
1
{\displaystyle \chi _{1}}
χ
2
{\displaystyle \chi _{2}}
χ
3
{\displaystyle \chi _{3}}
χ
4
{\displaystyle \chi _{4}}
χ
5
{\displaystyle \chi _{5}}
Number of cams (pins)
434751535937614131292623
The Lorenz SZ42 machine with its covers removed. Bletchley Park museumAwards
About this person
Country
United Kingdom
Category
Academics
Type
Academic
Status
Deceased
Dates
Lived 1917 to 2002 · aged 84
The same award as W. T. Tutte
Harold Scott MacDonald CoxeterBoth received CRM-Fields-PIMS prizePaul CorkumBoth received Henry Marshall Tory MedalAndrew GranvilleBoth received CRM-Fields-PIMS prize
Stephen CookBoth received CRM-Fields-PIMS prize
Gerhard HerzbergBoth received Henry Marshall Tory MedalRonald GillespieBoth received Henry Marshall Tory Medal