We describe results from an apparatus and protocol designed to implement quantum key distribution, by which two users, who share no secret information initially: 1) exchange a ran...
We study the following two kinds of one-way hash functions: universal oneway hash functions (UOHs) and collision intractable hash functions (CIHs). The main property of the former...
The prospect of a world in which all text, audio, picture, and video documents are in digital form on easily modi able media raises the issue of how to certify when a document was...