Telcordia positions PLS for 100G security

Telcordia reportedly is due to announce a new technology development today that will address the need for better optical layer transmission security at speeds up to 100 Gbps. The technology, photonic layer security, has been evolving for the last few years. It addresses a network security vulnerability created by the deployment of reconfigurable optical add-drop multiplexers (ROADMs).

PLS actually emerged from the Defense Advanced Research Projects Agency, and before its potential security role, it was considered as a possible network congestion solution or a new step in passive optical networking technology, but high-speed network security is an area ripe for application. PLS uses two series of phase shifts, the first scrambles optical signals and the second combines multiple signals into an unreadable aggregated stream that only can be unscrambled by the user's key.

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