For the Australian rules footballer, see Clifford Cocks (footballer).
Clifford Cocks
CB FRS
Clifford Cocks at the Royal Society admissions day in London, July 2015
Born
Clifford Christopher Cocks
(1950-12-28) 28 December 1950 (age 73)[1]
Prestbury, Cheshire, England, United Kingdom
Nationality
British
Education
Manchester Grammar School
Alma mater
University of Cambridge (BA)
Known for
RSA encryption
Public-key cryptography
Cocks IBE scheme
Scientific career
Fields
Cryptography
Institutions
Government Communications Headquarters
University of Oxford
Clifford Christopher CocksCB FRS[2] (born 28 December 1950) is a British mathematician and cryptographer. In the early 1970s, while working at the United Kingdom Government Communications Headquarters (GCHQ), he developed an early public-key cryptography (PKC) system. This pre-dated commercial offerings, but due to the classified nature of Cocks' work, it did not become widely known until 1997 when the work was declassified.
As his work was not available for public review until 1997, it had no impact on numerous commercial initiatives relating to Internet security that had been commercially developed and that were well established by 1997. His work was technically aligned with the Diffie–Hellman key exchange and elements of the RSA algorithm, these well known systems were independently developed and commercialized.[3][4]
^Anon (2016). "Cocks, Clifford Christopher". Who's Who (online Oxford University Press ed.). Oxford: A & C Black. doi:10.1093/ww/9780199540884.013.U261614. (Subscription or UK public library membership required.)
^Anon (2015). "Mr Clifford Cocks CB FRS". London: Royal Society. Archived from the original on 17 November 2015.
^"Clifford Cocks, James Ellis, and Malcolm Williamson". National Security Agency/Central Security Service. Retrieved 18 November 2023.
^"The Alternative History of Public-Key Cryptography". cryptome.org. Retrieved 18 November 2023.
Clifford Christopher Cocks CB FRS (born 28 December 1950) is a British mathematician and cryptographer. In the early 1970s, while working at the United...
Cocks IBE scheme is an identity based encryption system proposed by CliffordCocks in 2001. The security of the scheme is based on the hardness of the...
USC, the 'A' in RSA. David Chaum, US, inventor of blind signatures. CliffordCocks, UK GCHQ first inventor of RSA, a fact that remained secret until 1997...
had conceived the principles of asymmetric key cryptography. In 1973, CliffordCocks invented a solution that was very similar in design rationale to RSA...
early 1970s at the British intelligence agency GCHQ, where James Ellis, CliffordCocks and others made important discoveries related to encryption algorithms...
1974 GCHQ mathematician CliffordCocks had developed a workable public key cryptography algorithm and a workable PKI system. Cock's system was not available...
communications. Building on the work of James H. Ellis in the late 1960s, CliffordCocks invented a public-key cryptography algorithm in 1973 (equivalent to...
President of the Royal Society and Master of Trinity, his former college. CliffordCocks and Malcolm J. Williamson were peers at the school and also Maths students...
cryptography, a concept that would be implemented by his GCHQ colleague CliffordCocks in 1973, in what would become known as the RSA algorithm, with key exchange...
and B-trees discovered 1973 – RSA encryption algorithm discovered by CliffordCocks 1973 – Jarvis march algorithm developed by R. A. Jarvis 1973 – Hopcroft–Karp...
Alon, George Andrews, Béla Bollobás, John P. Burgess, Kevin Buzzard, CliffordCocks, Ingrid Daubechies, Persi Diaconis, Jordan Ellenberg, Oded Goldreich...
Public-key cryptography is invented and developed by James H. Ellis, CliffordCocks, Malcolm J. Williamson, Whitfield Diffie, Martin Hellman, Ralph Merkle...
of these have now been published, and the inventors (James H. Ellis, CliffordCocks, and Malcolm Williamson) have made public (some of) their work. Hashing...
to the physical trauma the cocks inflict on each other, which is sometimes increased by attaching metal spurs to the cocks' natural spurs. While not all...
Adelaide Football Club wear the number one guernsey – this started when Clifford Keal wore the number as club captain for the first time in 1924. The tradition...
concert organist Daniel Moult, comic Chris Addison, and cryptographers CliffordCocks, Peter Twinn and Malcolm J. Williamson. Theatre director Nicholas Hytner...
research, was based from 1966 to 1997 at Crewe Hall in Crewe Green. CliffordCocks and James H. Ellis from Cheshire, with Malcolm J. Williamson, invented...
protocols. Building on the work of James H. Ellis in the late 1960s, CliffordCocks and Malcolm Williamson invented a public-key cryptography algorithm...
Chilton, American singer-songwriter and guitarist (d. 2010) 1950 – CliffordCocks, English mathematician and cryptographer 1950 – Rainer Maria Latzke...
Hitler used to communicate with his generals in World War II. 1973: CliffordCocks (born 1950) first developed what came to be known as the RSA cipher...
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