Arithmetic Reconciliation for CVQKD Protocols

Ravilla Leite, Juliana Martins de Assis, Francisco M. Assis

DOI: 10.14209/sbrt.2025.1571157285

Evento: XLIII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2025)

Keywords: Reconciliation CVQKD Cryptography Distributional Transform

Abstract

Quantum key distribution allows the distribution of a secret key with applications to cryptography. Specially, continuous variable quantum key distribution presents some advantages over its discrete counterpart and involves a reconciliation protocol where the continuous variable must be transformed to a binary sequence common to both trusted parties. Recently proposed arithmetic reconciliation is one of the possible scheme. In this paper, we evaluate the performance of this scheme both mathematically and through simulations, as also achieve expressions and simulations for the obtained reconciliation efficiencies. These results suggest that arithmetic reconciliation is a promising technique in continuous variable quantum key distribution.

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