[antxxxx]

Whitfield Diffie and Martin Hellman did not invent public-private-key-encryption. It was invented in secret by mathematicians working at GCHQ before Diffie and Hellman but not publicly acknowledged until 1997 - https://en.wikipedia.org/wiki/James_H._Ellis

[krylon]

Well, technically yes. But a) the invention of asymmetric encryption at GHCQ was kept secret, so Diffie and Hellman did not know about it; they invented it independently, it happens from time to time. And b) AFAIK, GHCQ did not develop asymmetric encryption into anything practically usable, they did come up with the basic concept, but stopped there (again: AFAIK - I am happy to be corrected if I have been misinformed there).