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BBG Communications
1658 Gailes Boulevard, San Diego, CA, 92154
Phone: 1.619.661.6661

Quantum Cryptography

2008-11-01


A team from Bristol University and roughly 40 other European institutions has developed an unbreakable encryption for a commercial communications network. The technology is based on quantum cryptography. Quantum cryptography is a technique that continually and randomly generates new encryption keys based on a stream of single photons emitted by a laser.

These solutions are suitable for some applications, such as connecting two data centres in metropolitan areas, however, there are serveral disadvantages. For example, the maximum distance between sender and receiver is limited due to loss of photons in the optical fibre. The max speed of key generation is relatively low. In a network, longer distances can be bridged, and alternative paths between sender and receiver can automatically be chosen to increase key generation throughput or prevent communication lines from being interrupted.

Some claim that this development will open up the possibility for telecommunication operators to develop new services and products based on quantum cryptography.

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BBG Communications
1658 Gailes Boulevard
San Diego, CA, 92154
Phone: 1.619.661.6661
Email: info@bbgcomm.com
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