When did James H. Ellis conceive non-secret encryption?
James H. Ellis conceived non-secret encryption in 1970 while working at the UK Government Communications Headquarters.
Questions about Public-key cryptography
Short answers, pulled from the story.
Who implemented RSA encryption and when was it created?
Clifford Cocks implemented what is now known as RSA encryption in 1973.
What year did Whitfield Diffie and Martin Hellman publish their asymmetric key cryptosystem?
Whitfield Diffie and Martin Hellman published an asymmetric key cryptosystem in 1976.
How many years passed before the British government publicly acknowledged cryptographic research findings from the 1970s?
The British government did not publicly acknowledge these research findings until 1997, decades after the initial discoveries were made.
Which organizations use hybrid cryptosystems to combine public-key and symmetric cryptography?
PGP, SSH, and the SSL/TLS family of schemes utilize this procedure called hybrid cryptosystems because they combine both methods.