Malcolm J. Williamson
Malcolm J. Williamson | |
---|---|
Born |
Stockport, United Kingdom |
November 2, 1950^{[1]}
Died | September 15, 2015 San Diego, United States^{[3]} |
(aged 64)^{[2]}
Nationality | British |
Known for | Independently developed a version of Diffie–Hellman key exchange |
Scientific career | |
Fields | Cryptography |
Malcolm John Williamson was a British mathematician and cryptographer. In 1974 he developed what is now known as Diffie–Hellman key exchange.^{[4]} He was then working at GCHQ and was therefore unable to publicize his research as his work was classified. Martin Hellman, who independently developed the key exchange at the same time, received credit for the discovery until Williamson's research was declassified by the British government in 1997.^{[4]}
Williamson studied at Manchester Grammar School, winning first prize in the 1968 British Mathematical Olympiad.^{[5]} He also won a Silver prize^{[6]} at the 1967 International Mathematical Olympiad in Cetinje, Yugoslavia and a Gold prize^{[7]} at the 1968 International Mathematical Olympiad in Moscow.^{[8]} He read mathematics at Trinity College, Cambridge, graduating in 1971. After a year at Liverpool University, he joined GCHQ, and worked there until 1982.
From 1985 to 1989 Williamson worked at Nicolet Instruments in Madison, Wisconsin where he was the primary author on two digital hearing aid patents.^{[9]}^{[10]}
See also
References
- ^ "In Memory of Malcolm John Williamson". Retrieved 26 June 2016.
- ^ "Malcolm John Williamson 1950 - 2015". The San Diego Union Tribune. 18 October 2015. Retrieved 26 June 2016.
- ^ "Malcolm John Williamson 1950 - 2015". The San Diego Union Tribune. 18 October 2015. Retrieved 26 June 2016.
- ^ ^{a} ^{b} Singh, Simon (1999). The Code Book. Doubleday. pp. 279–292.
- ^ A.Gardiner "The Mathematical Olympiad Handbook" Oxford University Press, 1997
- ^ The Science Teacher volume 11 number 1 (October 1967) pages 30 and 31, 1967, retrieved 26 Jan 2009
- ^ New Science Teacher volume 12 number 2 (December 1968) pages 31–35, 1968, retrieved 26 Jan 2009
- ^ "Malcolm J. Williamson's results". International Mathematical Olympiad.
- ^ US Patent 5091952 - Feedback suppression in digital signal processing hearing aids
- ^ US Patent 5027410 - Adaptive, programmable signal processing and filtering for hearing aids
External links
- Williamson's January 1974 internal GCHQ note "Non-Secret Encryption Using a Finite Field"
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- 1950 births
- 2015 deaths
- Government Communications Headquarters cryptographers
- Public-key cryptographers
- Modern cryptographers
- People educated at Manchester Grammar School
- 20th-century British mathematicians
- 21st-century British mathematicians
- Alumni of Trinity College, Cambridge
- International Mathematical Olympiad participants
- British mathematician stubs