TY - GEN
T1 - A statistical physics approach to the wiretap channel
AU - Esnaola, Inaki
AU - Tulino, Antonia M.
AU - Poor, H. Vincent
PY - 2013
Y1 - 2013
N2 - The secrecy rate of Wyner wiretap channels is analyzed for general classes of sources, sensing schemes, and channel distributions. Using the replica method, heuristic closed form expressions are obtained for the asymptotic secrecy rate as a function of the statistics of the system model. This result is then applied in practically oriented scenarios, leading to expressions that expose the existing trade-offs between system parameters and security requirements, including the region in which perfect secrecy is feasible. As a particular example of the broad class of sources that are considered in the main contribution, source distributions giving rise to sparse signals are studied. In that setting, the secrecy rate linked to the disclosure of information about the support of the signals is investigated.
AB - The secrecy rate of Wyner wiretap channels is analyzed for general classes of sources, sensing schemes, and channel distributions. Using the replica method, heuristic closed form expressions are obtained for the asymptotic secrecy rate as a function of the statistics of the system model. This result is then applied in practically oriented scenarios, leading to expressions that expose the existing trade-offs between system parameters and security requirements, including the region in which perfect secrecy is feasible. As a particular example of the broad class of sources that are considered in the main contribution, source distributions giving rise to sparse signals are studied. In that setting, the secrecy rate linked to the disclosure of information about the support of the signals is investigated.
UR - http://www.scopus.com/inward/record.url?scp=84890346535&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890346535&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2013.6620443
DO - 10.1109/ISIT.2013.6620443
M3 - Conference contribution
AN - SCOPUS:84890346535
SN - 9781479904464
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 1332
EP - 1336
BT - 2013 IEEE International Symposium on Information Theory, ISIT 2013
T2 - 2013 IEEE International Symposium on Information Theory, ISIT 2013
Y2 - 7 July 2013 through 12 July 2013
ER -