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arXiv · 2001.07979

100Mbps Reconciliation for Quantum Key Distribution Using a Single Graphics Processing Unit

Yu Guo·Chaohui Gao·Dong Jiang·Lijun Chen
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Abstract

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.

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Yu Guo, Chaohui Gao, Dong Jiang, Lijun Chen. 2020-01-22. 100Mbps Reconciliation for Quantum Key Distribution Using a Single Graphics Processing Unit. https://arxiv.org/abs/2001.07979

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