Research on random number chip array scheme
for quantum key distribution products

doi:10.3969/j.issn.1007-5461.2021.04.009

Abstract

Abstract: Aiming at the market demand of quantum key distribution (QKD) technology, a random num- ber source implementation scheme and high-speed self-check algorithm for QKD products are proposed. Commercial WNG-8 noise source chip is used to build chip array as the random number source in the system, and the reliability of random number is improved by means of XOR process. According to rele- vant national standards, a high-speed Poker self-check algorithm scheme is designed based on FPGA. By optimizing the decision strategy, implementing the Ping-Pong switching control and parallel statistics of the random data flow, the processing bandwidth of 3.8 Gbps is realized, which could be further improved to 10 Gbps to meet the real-time checking requirement for future high speed QKD products.

Key words: quantum information, random number source, Poker check, field programmable gate array; digital signal processing

CLC Number:

O431.2

TANG Shibiao∗, CHENG Jie, LI Shuai. Research on random number chip array scheme for quantum key distribution products[J]. Chinese Journal of Quantum Electronics, 2021, 38(4): 468-476.

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Research on random number chip array scheme for quantum key distribution products

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