Paper Info
Title
High-Speed and Adaptive FPGA-Based Privacy Amplification in Quantum Key Distribution.
Abstract
Privacy amplification (PA) is a vital procedure in quantum key distribution (QKD) to shrink the eavesdropper's information about the final key almost to zero. With the increase of repeat frequency of discrete variable QKD (DV-QKD) system, PA processing speed has become the bottleneck in many highspeed DV-QKD systems. In this paper, a high-speed adaptive field-programmable gate array (FPGA)-based PA scheme using a fast Fourier transform (FFT) is presented. To decrease the computation complexity, a modified 2-D FFT-based Toeplitz PA scheme is designed. To increase the processing speed of the scheme on the constraint of limited resources, a real-value oriented FFT acceleration method and a fast read/write balanced matrix transposition method are designed and implemented in our scheme. The experimental results on a Xilinx Virtex-6 FPGA demonstrate that the throughput is nearly double of the latest FPGA based Toeplitz PA scheme according to the literature. Besides, this scheme owns not only the good adaptivity to compression ratio but also the compression ratio independent resource consumption. Therefore, this scheme can fit many high-speed QKD applications.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2896259
IEEE ACCESS
Keywords
Field
DocType
Quantum key distribution,privacy amplification,fast Fourier transform,field-programmable gate array
Quantum key distribution,Bottleneck,Computer science,Field-programmable gate array,Toeplitz matrix,Fast Fourier transform,Gate array,Compression ratio,Throughput,Computer hardware,Distributed computing
Journal
Volume
ISSN
Citations 
7
2169-3536
1
PageRank 
References 
Authors
0.41
0
6
Name
Order
Citations
PageRank
Qiong Li16614.58
Bing-Ze Yan210.41
Haokun Mao382.32
Xiao-Feng Xue410.41
Qi Han513930.38
Hong Guo6308.81