NDLI: Wiretap channel with strictly causal side information at encoder

Content Provider	IEEE Xplore Digital Library
Author	Sonee, A. Hodtani, G.A.
Copyright Year	2014
Description	Author affiliation: Dept. of Electr. Eng., Ferdowsi Univ. of Mashhad, Mashhad, Iran (Sonee, A.; Hodtani, G.A.)
Abstract	In this paper, the wiretap channel with side information studied in [2] is revisited for the case in which the side information is available only at the encoder and in a strictly causal manner. We derive a lower bound on the secrecy capacity of the channel based on a coding scheme which consists of block Markov encoding and key generation using the strictly causal state information available at the encoder. In order to provide the secrecy of messages, at the end of each block a description of the state sequence obtained by the encoder is used to generate the key which encrypts the whole or part of the message to be transmitted in the next block. Moreover, for the decoder to be able to decrypt the messages, the description of the sate sequence of each block is sent in common with the message of that block. Also, an upper bound on the secrecy capacity is developed which assumes that the state is noncausally known at the encoder and we prove that it would coincide the lower bound for a special case and results in the secrecy capacity.
Starting Page	1
Ending Page	6
File Size	167139
Page Count	6
File Format	PDF
ISBN	9781479948789
e-ISBN	9781479948772
DOI	10.1109/IWCIT.2014.6842507
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-07
Publisher Place	Iran
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Upper bound Markov processes Encoding Decoding Cryptography Indexes
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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