Chinese Journal of Network and Information Security ›› 2017, Vol. 3 ›› Issue (11): 12-21.doi: 10.11959/j.issn.2096-109x.2017.00215

• Academic paper • Previous Articles     Next Articles

Routing scheme for key-relaying-based quantum key distribution network in wide-area

Chao YANG1(),Hong-qi ZHANG1,Jin-hai SU1,Hua-cheng CHEN2   

  1. 1 Information Engineering University,Zhengzhou 450004,China
    2 73503 PLA Troops,Fuzhou 350001,China
  • Revised:2017-11-02 Online:2017-11-01 Published:2017-11-30
  • Supported by:
    The National High Technology Research and Development Program of China(2014AA7116082);The National High Technology Research and Development Program of China(2015AA7116040)


The existing routing schemes for key relaying QKD network had a limited scope of application and could not satisfy the requirements of the routing issue of wide-area QKD network.A multi-domain routing scheme based on visual link was proposed for QKD network after the analyzing of the characteristics of QKD network and the proposing of the design requirements of routing issue.In this routing scheme,the QKD network was divided into multiple routing areas to reduce the complexity of intra-domain routing,and a visual QKD link striding over the whole key routing area was built to shorten the routing path.Therefore,the routing efficiency can be increased by this scheme.After theoretical analysis,the proposed routing scheme has advantages of fast convergence of routing update,little time delay and low key material cost.

Key words: quantum key distribution, wide-area QKD network, key relaying, routing scheme

CLC Number: 

No Suggested Reading articles found!