'Unbreakable' encryption unveiled
Perfect secrecy has come a step closer with the launch of the world's first computer network protected by unbreakable quantum encryption at a scientific conference in Vienna.
The network connects six locations across Vienna and in the nearby town of St Poelten, using 200 km of standard commercial fibre optic cables. Quantum cryptography is completely different from the kinds of security schemes used on computer networks today.
At the BBC.
[ Read more ]