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IEICE TRANSACTIONS on Information

A Practical Secret Key Generation Scheme Based on Wireless Channel Characteristics for 5G Networks

Qiuhua WANG, Mingyang KANG, Guohua WU, Yizhi REN, Chunhua SU

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Summary :

Secret key generation based on channel characteristics is an effective physical-layer security method for 5G wireless networks. The issues of how to ensure the high key generation rate and correlation of the secret key under active attack are needed to be addressed. In this paper, a new practical secret key generation scheme with high rate and correlation is proposed. In our proposed scheme, Alice and Bob transmit independent random sequences instead of known training sequences or probing signals; neither Alice nor Bob can decode these random sequences or estimate the channel. User's random sequences together with the channel effects are used as common random source to generate the secret key. With this solution, legitimate users are able to share secret keys with sufficient length and high security under active attack. We evaluate the proposed scheme through both analytic and simulation studies. The results show that our proposed scheme achieves high key generation rate and key security, and is suitable for 5G wireless networks with resource-constrained devices.

Publication
IEICE TRANSACTIONS on Information Vol.E103-D No.2 pp.230-238
Publication Date
2020/02/01
Publicized
2019/10/16
Online ISSN
1745-1361
DOI
10.1587/transinf.2019INI0001
Type of Manuscript
Special Section PAPER (Special Section on Security, Privacy, Anonymity and Trust in Cyberspace Computing and Communications)
Category
Network Security

Authors

Qiuhua WANG
  Hangzhou Dianzi University
Mingyang KANG
  Hangzhou Dianzi University
Guohua WU
  Hangzhou Dianzi University
Yizhi REN
  Hangzhou Dianzi University
Chunhua SU
  University of Aizu

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