Title :
Construction of wiretap codes from ordinary channel codes
Author :
Hayashi, Masahito ; Matsumoto, Ryutaroh
Author_Institution :
Grad. Sch. of Inf. Sci., Tohoku Univ., Sendai, Japan
Abstract :
From an arbitrary given channel code over a discrete or Gaussian memoryless channel, we construct a wiretap code with the strong security. Our construction can achieve the wiretap capacity under mild assumptions. The key tool is the new privacy amplification theorem bounding the eavesdropped information in terms of the Gallager function.
Keywords :
Gaussian channels; channel coding; telecommunication security; Gallager function; Gaussian memoryless channel; channel codes; discrete Gaussian channel; eavesdropping; privacy amplification theorem; wiretap codes; Communication system security; Decoding; Entropy; Error correction codes; Gaussian channels; Information security; Memoryless systems; National security; Parity check codes; Privacy;
Conference_Titel :
Information Theory Proceedings (ISIT), 2010 IEEE International Symposium on
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4244-7890-3
Electronic_ISBN :
978-1-4244-7891-0
DOI :
10.1109/ISIT.2010.5513794
