Title :
Secret communication with feedback
Author :
Gunduz, Deniz ; Brown, D. Richard ; Poor, H. Vincent
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ
Abstract :
Secure communication with feedback is studied. An achievability scheme in which the backward channel is used to generate a shared secret key is proposed. The scenario of binary symmetric forward and backward channels is considered, and a combination of the proposed scheme and Maurer´s coding scheme is shown to achieve improved secrecy rates. The scenario of a Gaussian channel with perfect output feedback is also analyzed and the Schalkwijk-Kailath coding scheme is shown to achieve the secrecy capacity for this channel.
Keywords :
Gaussian channels; channel coding; telecommunication security; Gaussian channel; Maurer´s coding scheme; Schalkwijk-Kailath coding scheme; backward channel; binary symmetric forward channels; output feedback; secret communication; shared secret key; Application software; Broadcasting; Channel capacity; Cryptography; Degradation; Gaussian channels; Information security; Information theory; Memoryless systems; Output feedback;
Conference_Titel :
Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on
Conference_Location :
Auckland
Print_ISBN :
978-1-4244-2068-1
Electronic_ISBN :
978-1-4244-2069-8
DOI :
10.1109/ISITA.2008.4895417
