About: Malcolm J. Williamson

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Malcolm John Williamson (2 November 1950 – 15 September 2015) was a British mathematician and cryptographer. In 1974 he developed what is now known as Diffie–Hellman key exchange. He was then working at GCHQ and was therefore unable to publicise 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.

Attributes	Values
rdf:type	Thing foaf:Person person dul:NaturalPerson Eukaryote Homo sapiens Human Animal yago:WikicatBritishMathematicians yago:WikicatBritishPeople animal eukaryote scientist species schema:Person yago:WikicatLivingPeople yago:WikicatModernCryptographers yago:WikicatPeopleEducatedAtManchesterGrammarSchool Scientist yago:Alumnus109786338 yago:Associate109816771 yago:CausalAgent100007347 yago:Cryptanalyst109981540 yago:Decoder109995398 yago:Intellectual109621545 yago:LivingThing100004258 yago:Mathematician110301261 yago:Object100002684 yago:Organism100004475 yago:Participant110401829 yago:Peer109626238 yago:Person100007846 yago:PhysicalEntity100001930 yago:WikicatGovernmentCommunicationsHeadquartersCryptographers yago:WikicatInternationalMathematicalOlympiadParticipants yago:YagoLegalActor yago:YagoLegalActorGeo yago:Scholar110557854 yago:Scientist110560637 yago:Whole100003553 yago:WikicatAlumniOfTrinityCollege,Cambridge yago:WikicatPublic-keyCryptographers
rdfs:label	مالكوم جاي ويليامسون (ar) Malcolm Williamson (Kryptologe) (de) Malcolm J. Williamson (fr) Malcolm J. Williamson (en) Malcolm Williamson (criptógrafo) (pt)
rdfs:comment	مالكوم جاي ويليامسون (بالإنجليزية: Malcolm J. Williamson)‏ هو عالم تعمية ‏ وعالم حاسوب ورياضياتي بريطاني، ولد في 1950 في ستوكبورت في المملكة المتحدة، وتوفي في 15 سبتمبر 2015 في سان دييغو في الولايات المتحدة. (ar) Malcolm J. Williamson (* 2. November 1950; † 15. September 2015) war ein britischer Kryptologe. Williamson war 1974 und 1975 als Mitarbeiter des britischen Government Communications Headquarters (GCHQ) an der Entwicklung eines asymmetrischen Verschlüsselungsverfahren beteiligt. Die theoretischen Vorarbeiten hatte ab 1969 James H. Ellis, ebenfalls Mitarbeiter des GCHQ geleistet. Der Durchbruch gelang 1973 Clifford Cocks. Da die Verschlüsselungsmethode der Geheimhaltung unterlag, wurde das Verfahren 1975 bis 1977 von amerikanischen Wissenschaftlern als RSA-Kryptosystem ein zweites Mal erfunden. (de) Malcolm John Williamson é um matemático e criptógrafo britânico que, em 1974, descobriu os aspectos fundamentais da chamada criptografia de chave pública, três anos antes de Whitfield Diffie, Martin Hellman, Ralph Merkle, Ronald Rivest, Adi Shamir e Leonard Adleman, estes considerados os inventores da criptografia de chave pública. (pt) Malcolm John Williamson (2 November 1950 – 15 September 2015) was a British mathematician and cryptographer. In 1974 he developed what is now known as Diffie–Hellman key exchange. He was then working at GCHQ and was therefore unable to publicise 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. (en) Malcolm John Williamson est un mathématicien et un cryptographe britannique né en 1950. En 1974, il a développé ce qui est maintenant connu comme l'échange de clés Diffie-Hellman. Il travaillait alors au Government Communications Headquarters (Quartier général des communications du gouvernement) du Royaume-Uni (GCHQ) et n'a donc pas pu publier les résultats de ses recherches étant donné que son travail était classé comme confidentiel. (fr)
foaf:name	Malcolm J. Williamson (en)
name	Malcolm J. Williamson (en)
birth place	Stockport
death place	San Diegan (train)
death place	San Diego, United States (en)
death date	2015-09-15 (xsd:date)
birth place	Stockport, United Kingdom (en)
birth date	1950-11-02 (xsd:date)
dcterms:subject	GCHQ cryptographers 1950 births 20th-century British mathematicians 21st-century British mathematicians Alumni of Trinity College, Cambridge People educated at Manchester Grammar School Public-key cryptographers 2015 deaths International Mathematical Olympiad participants Modern cryptographers GCHQ people
Wikipage page ID	1108495 (xsd:integer)
Wikipage revision ID	1087280843 (xsd:integer)
Link from a Wikipage to another Wikipage	San Diegan (train) International Mathematical Olympiad Cryptography Clifford Cocks GCHQ GCHQ Moscow Liverpool University Manchester Grammar School Stockport GCHQ cryptographers Public-key cryptography 1950 births 20th-century British mathematicians 21st-century British mathematicians Alumni of Trinity College, Cambridge People educated at Manchester Grammar School Public-key cryptographers Trinity College, Cambridge Diffie–Hellman key exchange NSA Hall of Honor 2015 deaths James H. Ellis International Mathematical Olympiad participants Modern cryptographers GCHQ people Martin Hellman

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