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Journal Article
Threshold Secret Sharing Transmission against Passive Eavesdropping in MIMO Wireless Networks
- Authors
- Jungho Myung, Keunyoung Kim, Taehong Kim
- Issue Date
- 2018-10
- Citation
- Wireless Communications and Mobile Computing, v.2018, pp.1-7
- ISSN
- 1530-8669
- Publisher
- John Wiley & Sons
- Language
- English
- Type
- Journal Article
- Abstract
- We propose a threshold secret sharing scheme for secure communications in multiple input and multiple output wireless networks. In the proposed scheme, the base station divides the secret data into Nmin parts using a polynomial of degree T-1 (T?돞Nmin) and transmits the divided data to the legitimate user by beamforming with multiple spatial dimensions. Then, at the user, the secret data can be reconstructed with a sufficient number (?돟T) of divided parts by using the Lagrange interpolating polynomial. However, it is difficult for the eavesdropper to correctly estimate the T parts due to the difference between the main channel with beamforming and the eavesdropping channel in the physical layer, which results in the failure of secret data reconstruction. The numerical results show that the eavesdropping probability of the proposed scheme is lower than those of conventional schemes. Moreover, we analyze the symbol-error-rate and show that the theoretical result is well aligned with simulation results.
- KSP Keywords
- Eavesdropping channel, Eavesdropping probability, Lagrange interpolating polynomial, Main channel, Multiple input multiple output(MIMO), Numerical results, Physical Layer, Sampling Time(Ts), Secure Communication, Threshold secret sharing scheme, Wireless network
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
