tedrick@ernie.berkeley.edu (Tom Tedrick) (04/23/86)
>Isn't one-time pad the ONLY (theoretically, rather than computationally) >secure cryptosystem? "ONLY" is a tricky word. For example Giles Brassard has published some work on "Quantum Cryptography" where security depends on principles of quantum physics. One reference is "An Update on Quantum Cryptography", by Charles H. Bennet & Giles Brassard, pages 475-480, "Advances in Cryptology: Proceedings of Crypto 84", Springer Verlag Lecture Notes in Computer Science #196.