AT&T : Enterprise Business : Article : Executive Summary : Quantum Cryptography

Quantum Cryptography is a new method of encryption key transmission that is beginning to be used in Virtual Private Networks (VPNs) This method is based on the concepts of Quantun Mechanics, under which keys are constructed using a protocol that allows key measurement to take place only once, making it supremely difficult to compromise the key. AT&T : Enterprise Business : Article : Executive Summary : Quantum Cryptography