An efficient error reconciliation scheme is important for post-processing of quantum key distribution (QKD). Recently, a multi-matrix low-density parity-check codes based reconciliation algorithm which can provide remarkable perspectives for high efficiency information reconciliation was proposed. This paper concerns the improvement of reconciliation performance. Multi-matrix algorithm is implemented and optimized on the graphics processing unit (GPU) to obtain high reconciliation throughput. Experimental results indicate that GPU-based algorithm can highly improve reconciliation throughput to an average 85.67 Mbps and a maximum 102.084 Mbps with typical code rate and efficiency. This is the best performance of reconciliation on GPU platform to our knowledge.
@article{arxiv.2001.07979,
title = {100Mbps Reconciliation for Quantum Key Distribution Using a Single Graphics Processing Unit},
author = {Yu Guo and Chaohui Gao and Dong Jiang and Lijun Chen},
journal= {arXiv preprint arXiv:2001.07979},
year = {2020}
}