Improved performance of the cryptographic key distillation protocol of an FSO/CV-QKD system on a turbulent channel using an adaptive LDPC encoder
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedad Mexicana de Física A.C.
2017
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| _version_ | 1876423422851940352 |
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| author | J.A López-Leyva |
| author_facet | J.A López-Leyva |
| contents | Improved performance of the cryptographic key distillation protocol of an FSO/CV-QKD system on a turbulent channel using an adaptive LDPC encoder J.A López-Leyva A. Arvizu-Mondragon J. Santos-Aguila R. Ramos-Garcia Física, Astronomía y Matemáticas Rytov variance secret key rate mutual information Atmospheric turbulence In this paper, a dynamical and adaptive LDPC coding scheme is proposed in order to improve the performance of the cryptographic key distillation protocol of an FSO/CV-QKD system considering the atmospheric turbulence levels that may be present in the classic channel. In this scheme, the Generator and Parity-check matrices of the encoder are modified according to the Rytov variance values estimated in the classical channel in order to improve the final secret key rate of the QKD system. The simulation results show that the final secret key was incremented 87.5 Kbps (from 52.5 Kbps to 140 Kbps) using the adaptive code rate; meaning that the information encrypted and transmitted is increased. In addition, the use of the dynamical encoder avoids the drastically reduction of the final secret key rate when the conditions of the classical channel are considered. Our proposal might be implemented based on the use of high-speed FPGA’s and DSP’s commercially available. 2017 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57050507008 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.3 Vol.63 |
| format | Artículo científico |
| id | redalyc_57050507008 |
| institution | Redalyc |
| language | en |
| publishDate | 2017 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Improved performance of the cryptographic key distillation protocol of an FSO/CV-QKD system on a turbulent channel using an adaptive LDPC encoder J.A López-Leyva Física, Astronomía y Matemáticas Rytov variance secret key rate mutual information Atmospheric turbulence Improved performance of the cryptographic key distillation protocol of an FSO/CV-QKD system on a turbulent channel using an adaptive LDPC encoder J.A López-Leyva A. Arvizu-Mondragon J. Santos-Aguila R. Ramos-Garcia Física, Astronomía y Matemáticas Rytov variance secret key rate mutual information Atmospheric turbulence In this paper, a dynamical and adaptive LDPC coding scheme is proposed in order to improve the performance of the cryptographic key distillation protocol of an FSO/CV-QKD system considering the atmospheric turbulence levels that may be present in the classic channel. In this scheme, the Generator and Parity-check matrices of the encoder are modified according to the Rytov variance values estimated in the classical channel in order to improve the final secret key rate of the QKD system. The simulation results show that the final secret key was incremented 87.5 Kbps (from 52.5 Kbps to 140 Kbps) using the adaptive code rate; meaning that the information encrypted and transmitted is increased. In addition, the use of the dynamical encoder avoids the drastically reduction of the final secret key rate when the conditions of the classical channel are considered. Our proposal might be implemented based on the use of high-speed FPGA’s and DSP’s commercially available. 2017 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57050507008 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.3 Vol.63 |
| title | Improved performance of the cryptographic key distillation protocol of an FSO/CV-QKD system on a turbulent channel using an adaptive LDPC encoder |
| topic | Física, Astronomía y Matemáticas Rytov variance secret key rate mutual information Atmospheric turbulence |
| url | https://www.redalyc.org/articulo.oa?id=57050507008 |