Secure quantum key distribution with realistic devices
Feihu Xu, Xiongfeng Ma, Qiang Zhang, Hoi‐Kwong Lo, Jian-Wei Pan
Abstract
Some years ago quantum hacking became popular: devices implementing the unbreakable quantum cryptography were shown to have imperfections which could be exploited by attackers. Security has been thoroughly enhanced, as a consequence of both theoretical and experimental advances. This review gives both sides of the story, with the current best theory of quantum security, and an extensive survey of what makes quantum cryptosystem safe in practice.
Topics & Concepts
PhysicsQuantum key distributionKey (lock)Quantum cryptographyDistribution (mathematics)Statistical physicsQuantumQuantum mechanicsComputer securityQuantum informationComputer scienceMathematical analysisMathematicsQuantum Information and CryptographyQuantum Computing Algorithms and ArchitectureQuantum Mechanics and Applications