Security analysis and implementation of asymmetric authentication

Develop a security analysis and practical implementation of continuous-variable quantum key distribution with asymmetric authentication of the classical channel, in which Alice and Bob may receive different public information and consequently obtain different protocol outcomes, including the associated authentication cost when a key from a previous QKD session is used.

Background

The paper assumes perfect, symmetric authentication through a pre-shared key. Under asymmetric authentication, the honest parties may not share identical public information, so protocol steps such as variable-length decision may produce different results for Alice and Bob. Although prior work is cited as providing descriptions of security and performance under asymmetric authentication and analyses of authentication costs using keys from previous QKD sessions, the security analysis and experimental implementation are explicitly left unresolved in this paper.