About: James H. Ellis

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James Henry Ellis (25 September 1924 – 25 November 1997) was a British engineer and cryptographer. In 1970, while working at the Government Communications Headquarters (GCHQ) in Cheltenham, he conceived of the possibility of "non-secret encryption", more commonly termed public-key cryptography.

Attributes	Values
rdf:type	Thing foaf:Person person dul:NaturalPerson Eukaryote Person Human Animal yago:WikicatBritishEngineers yago:WikicatBritishPeople animal eukaryote scientist species schema:Person yago:WikicatModernCryptographers yago:WikicatPeopleFromLondon Scientist yago:Alumnus109786338 yago:CausalAgent100007347 yago:Cryptanalyst109981540 yago:Decoder109995398 yago:Engineer109615807 yago:Intellectual109621545 yago:LivingThing100004258 yago:Object100002684 yago:Organism100004475 yago:Person100007846 yago:PhysicalEntity100001930 yago:WikicatGovernmentCommunicationsHeadquartersCryptographers yago:YagoLegalActor yago:YagoLegalActorGeo yago:Scholar110557854 yago:Scientist110560637 yago:Whole100003553 yago:WikicatAlumniOfImperialCollegeLondon yago:WikicatEngineers yago:WikicatPublic-keyCryptographers
rdfs:label	James H. Ellis (de) James Ellis (fr) James H. Ellis (en) James H. Ellis (it) James Ellis (pt)
rdfs:comment	James Henry Ellis (* 25. September 1924 in Prestbury; † 25. November 1997) war ein britischer Ingenieur und Kryptograph, der Anfang der 1970er Jahre ein asymmetrisches Kryptosystem vorschlug, das aus Gründen der Geheimhaltung aber zunächst nicht veröffentlicht wurde. (de) James Henry Ellis (25 September 1924 – 25 November 1997) was a British engineer and cryptographer. In 1970, while working at the Government Communications Headquarters (GCHQ) in Cheltenham, he conceived of the possibility of "non-secret encryption", more commonly termed public-key cryptography. (en) James H. Ellis, né en 1924 et mort en novembre 1997, est un ingénieur et un mathématicien britannique. Dans un rapport écrit en 1970 et resté confidentiel à l'époque, alors qu'il travaillait pour le GCHQ, agence de renseignement britannique, Ellis décrit ce qu'il appela le chiffrement non secret, et qui correspond à ce qu'on appelle de nos jours le chiffrement à clef publique. Ainsi, le GCHQ avait connaissance du concept de chiffrement à clef publique avant même la célèbre publication de ses « inventeurs académiques », Whitfield Diffie et Martin Hellman. (fr) James Henry Ellis (25 settembre 1924 – 25 novembre 1997) è stato un crittografo inglese. Nel 1970, mentre lavorava presso il Government Communications Headquarters (GCHQ) a Cheltenham, concepì la possibilità di "cifratura non segreta", più comunemente definita crittografia a chiave pubblica. (it) James Henry Ellis (25 de setembro de 1924 - 25 de novembro de 1997) foi um engenheiro e criptógrafo britânico. Em 1970, enquanto trabalhava no Government Communications Headquarters (GCHQ), a agência de inteligência britânica, ele concebeu a possibilidade da "criptografia não-secreta", hoje chamada de criptografia de chave pública. Desse modo, o GCHQ estava consciente do conceito de criptografia de chave pública antes da publicação dos seus famosos "inventores acadêmicos", Whitfield Diffie e Martin Hellman. (pt)
foaf:name	James Henry Ellis (en)
name	James Henry Ellis (en)
death date	1997-11-25 (xsd:date)
birth place	Australia (en)
birth date	1924-09-25 (xsd:date)
dct:subject	1924 births 1997 deaths GCHQ cryptographers People from Leytonstone Public-key cryptographers History of computing in the United Kingdom Alumni of Imperial College London Modern cryptographers Engineers from London
Wikipage page ID	615948 (xsd:integer)
Wikipage revision ID	1100767044 (xsd:integer)
Link from a Wikipage to another Wikipage	Ron Rivest Bell Labs 1924 births 1997 deaths Communications-Electronics Security Group Cryptography Classified information Claude Shannon Clifford Cocks GCHQ GCHQ Leonard Adleman Leyton MIT GCHQ cryptographers Public-key cryptography People from Leytonstone Public-key cryptographers Whitfield Diffie Adi Shamir Eastcote Diffie–Hellman key exchange Grammar school History of computing in the United Kingdom Alumni of Imperial College London Modern cryptographers Engineers from London Cheltenham Dollis Hill Martin Hellman Cryptographer Imperial College London National Security Agency RSA (algorithm) World War II Post Office Research Station

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