Quantum Conference Key Agreement: A Review
Gláucia Murta, Federico Grasselli, Hermann Kampermann, Dagmar Bruß
Abstract
Abstract Conference key agreement (CKA), or multipartite key distribution, is a cryptographic task where more than two parties wish to establish a common secret key. A composition of bipartite quantum key distribution protocols can accomplish this task. However, the existence of multipartite quantum correlations allows for new and potentially more efficient protocols, to be applied in future quantum networks. Here, the existing quantum CKA protocols based on multipartite entanglement are reviewed, both in the device‐dependent and the device‐independent scenario.
Topics & Concepts
Key (lock)Computer scienceComputer securityQuantum Mechanics and ApplicationsQuantum Information and CryptographyQuantum Computing Algorithms and Architecture