The term “Post-Quantum Cryptography” is increasingly being used to describe the growing body of work on classical encryption systems which appear to be unbreakable (in polynomial time) by quantum (or classical) computers. A google search of this term already yields thousands of hits. In particular, note that “PQCrypto” conferences were held in 2006, 2008, and a third one is scheduled on May 25-28, 2010. Also, a compendium of articles in book form, entitled “Post-Quantum Cryptography” (Springer, 2009), edited by Bernstein, Buchmann, and Dahmen, has already been published.
The existence of PQ encryption systems makes quantum cryptography, and a quantum internet, OBSOLETE technologies.
My previous posts on quantum cryptography