From wikipedia:
Clifford Christopher Cocks CB FRS (born 28 December 1950) is a British mathematician and cryptographer. In 1973 he invented a public key cryptography algorithm equivalent to what would have become (in 1978) the RSA algorithm, while working at the United Kingdom Government Communications Headquarters (GCHQ).
The idea was classified information and his insight remained hidden for 24 years, despite being independently invented by Rivest, Shamir, and Adleman in 1977. Public Key Cryptography using prime factorisation is now part of nearly every internet transaction.
- Clifford Cocks on Wikipedia
- 01-Apr-1999 Wired Magazine - The Open Secret by Steven Levy
- 06-Oct-1999 Cryptome.org - The Alternative History of Public-Key Cryptography
- 02-Jan-2014 Cryptography Stack Exchange - How does Clifford Cocks 'Non-Secret Encryption' work?