Field test of classical symmetric encryption with continuous variables quantum key distribution
Paul Jouguet, Sébastien Kunz-Jacques, Thierry Debuisschert, Simon Fossier, Eleni Diamanti, Romain Alléaume, Rosa Tualle-Brouri, Philippe Grangier, Anthony Leverrier, Philippe Pache, Philippe Painchault · Optics Express · 2012
We report on the design and performance of a point-to-point classical symmetric encryption link with fast key renewal provided by a Continuous Variable Quantum Key Distribution (CVQKD) system. Our system was operational and able to encrypt point-to-point communications during more than six months, from the end of July 2010 until the beginning of February 2011. This field test was the first demonstration of the reliability of a CVQKD system over a long period of time in a server room environment. This strengthens the potential of CVQKD for information technology security infrastructure deployments.