Secret key generation in correlated multi-dimensional Gaussian channels
Title | Secret key generation in correlated multi-dimensional Gaussian channels |
Publication Type | Conference Paper |
Year of Publication | 2014 |
Authors | Pasolini, G., Dardari, D. |
Conference Name | Communications (ICC), 2014 IEEE International Conference on |
Date Published | June |
Keywords | analytical framework, antenna arrays, asymptotic analysis, Communication system security, confidential communications, correlated multidimensional Gaussian channels, Covariance matrices, frequency domains, frequency-domain analysis, Gaussian channels, intrinsic secrecy content, multiple antenna eavesdroppers, public channel, public key cryptography, radio networks, secret key generation, security, Signal to noise ratio, signal-to-noise ratio, spatial correlation, spatial domains, telecommunication security, time domains, time selectivity, time-domain analysis, Time-frequency Analysis, wide-sense stationary wireless channels, wireless channel reciprocity, wireless channels, Wireless communication, wireless networks |
Abstract | Wireless channel reciprocity can be successfully exploited as a common source of randomness for the generation of a secret key by two legitimate users willing to achieve confidential communications over a public channel. This paper presents an analytical framework to investigate the theoretical limits of secret-key generation when wireless multi-dimensional Gaussian channels are used as source of randomness. The intrinsic secrecy content of wide-sense stationary wireless channels in frequency, time and spatial domains is derived through asymptotic analysis as the number of observations in a given domain tends to infinity. Some significant case studies are presented where single and multiple antenna eavesdroppers are considered. In the numerical results, the role of signal-to-noise ratio, spatial correlation, frequency and time selectivity is investigated. |
DOI | 10.1109/ICC.2014.6883645 |
Citation Key | 6883645 |
- secret key generation
- wireless networks
- Wireless communication
- wireless channels
- wireless channel reciprocity
- wide-sense stationary wireless channels
- Time-frequency Analysis
- time-domain analysis
- time selectivity
- time domains
- telecommunication security
- spatial domains
- spatial correlation
- signal-to-noise ratio
- Signal to noise ratio
- security
- analytical framework
- radio networks
- public key cryptography
- public channel
- multiple antenna eavesdroppers
- intrinsic secrecy content
- Gaussian channels
- frequency-domain analysis
- frequency domains
- Covariance matrices
- correlated multidimensional Gaussian channels
- confidential communications
- Communication system security
- asymptotic analysis
- antenna arrays