RSA
Who
Ron Rivest, Adi Shamir and Leonard Adleman; Shamir is an Israeli cryptographer, and all three come from Jewish families.
When
1977
Where
MIT, Cambridge, USA
RSA, published in 1977, is one of the first practical public-key encryption systems and still secures much of the internet. It is named for its inventors Ron Rivest, Adi Shamir and Leonard Adleman. Shamir is an Israeli cryptographer, and all three came from Jewish backgrounds.
Part of “The Gifts of the Jews” — verified Jewish contributions to the world, with sources.