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LDPC Error Correction for Gb/s QKD



Alan Mink, Anastase Nakassis


Low Density Parity Check (LDPC) error correction is a one-way algorithm that has become popular for quantum key distribution (QKD) post-processing. Graphic processing units (GPUs) provide an interesting attached platform that may deliver Gb/s error correction performance for QKD. We present the details of our various LDPC GPU implementations and both error correction and execution throughput performance that each achieves. We also discuss the potential for implementation on a GPU platform to achieve Gb/s throughput.
Proceedings Title
Proc. of SPIE Defense & Security Symposium
Conference Dates
May 5-9, 2014
Conference Location
Baltimore, MD


Quantum key distribution, QKD reconciliation, Entropy, LDPC codes, GPU


Mink, A. and Nakassis, A. (2014), LDPC Error Correction for Gb/s QKD, Proc. of SPIE Defense & Security Symposium , Baltimore, MD, [online], (Accessed May 23, 2024)


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Created June 24, 2014, Updated November 10, 2018