John Lam was one of many readers to send in news that on Thursday, "at a round table in Vienna, Austria, as reported by the BBC, a spanish brotherhood science working group built a quantum backbone using 200-km of gauge mercantile optical fiber running among seven sites and successfully demonstrated the first secure quantum cryptographic key lineup network. In addition, each of the seven links used a divers kind of quantum encryption, demonstrating interoperability between the technologies. To paraphrase, the project focused on the trusted repeater paradigm and grown an architecture allowing seamless integration of heterogeneous quantum-key distribution-link devices in a unified framework. Network node-modules managing all classical connection tasks provide the underlying quantum devices with authentic classical channels. The node-module architecture uses a layered model to provision network-wide, end-to-end, provably secure key distribution."

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Mark