Back to Search
Start Over
Numerical simulation of the optimal two-mode attacks for two-way continuous-variable quantum cryptography in reverse reconciliation.
- Source :
-
Journal of Physics B: Atomic, Molecular & Optical Physics . 2/14/2017, Vol. 50 Issue 3, p1-1. 1p. - Publication Year :
- 2017
-
Abstract
- We analyze the security of the two-way continuous-variable quantum key distribution protocol in reverse reconciliation against general two-mode attacks, which represent all accessible attacks at fixed channel parameters. Rather than against one specific attack model, the expression of secret key rates of the two-way protocol are derived against all accessible attack models. It is found that there is an optimal two-mode attack to minimize the performance of the protocol in terms of both secret key rates and maximal transmission distances. We identify the optimal two-mode attack, give the specific attack model of the optimal two-mode attack and show the performance of the two-way protocol against the optimal two-mode attack. Even under the optimal two-mode attack, the performances of two-way protocol are still better than the corresponding one-way protocol, which shows the advantage of making double use of the quantum channel and the potential of long-distance secure communication using a two-way protocol. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CRYPTOGRAPHY
*GAUSSIAN processes
*COMMUNICATION methodology
Subjects
Details
- Language :
- English
- ISSN :
- 09534075
- Volume :
- 50
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Physics B: Atomic, Molecular & Optical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 120783210
- Full Text :
- https://doi.org/10.1088/1361-6455/aa50ae