re: quantum Just...

re: quantum Just guessing.
http://www.idquantique.com/products/vectis.htm

Unconditional data confidentiality
The Vectis link encryptor is a hardware Quantum Cryptography appliance for point-to-point wire-speed link encryption. It combines Quantum Key Distribution (QKD) and Advanced Encryption Standard (AES) encryption engines in a stand-alone unit. Vectis is a Layer 2 network transparent encryption device that securely bridges two Fast Ethernet (IEEE 802.3u) fiber optic networks.
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http://www.idquantique.com/products/clavis.htm

Quantum Key Distribution (QKD) is a technology that exploits a fundamental principle of quantum physics - observation causes perturbation - to exchange cryptographic keys over optical fiber networks with absolute security. It is attracting a growing interest in the scientific community. The id 3000 Clavis Quantum Key Distribution System - clavis is the ancient latin word for key - was developed by id Quantique to serve as a versatile research tool.

Clavis uses a proprietary auto-compensating optical platform, which features outstanding stability and interference contrast, guaranteeing low quantum bit error rate. Secure key exchange becomes possible up to 100 km. This optical platform is well documented in scientific publications and has been extensively tested and characterized.

The id 3000 Clavis system is the most flexible product of its kind on the market. It consists of two stations controlled by one or two external computers. A comprehensive software suite implements automated hardware operation and complete key distillation. Two quantum cryptography protocols are implemented. The exchanged keys can be used in an encrypted file transfer application, which allows secure communications between two stations.