Authors: Kavčić, Aleksandar
Mihaljević, Miodrag J. 
Matsuura, Kanta
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Light-weight secrecy system using channels with insertion errors: Cryptographic implications
Journal: ITW 2015 - 2015 IEEE Information Theory Workshop
First page: 257
Last page: 261
Conference: IEEE Information Theory Workshop, ITW 2015; Lotte City Hotel JejuJeju Island; South Korea; 11 October 2015 through 15 October 2015
Issue Date: 17-Dec-2015
ISBN: 978-146737852-9
DOI: 10.1109/ITWF.2015.7360775
A model of an encryption approach is analyzed from an information-theoretic point of view. In the model, an attacker faces the problem of observing messages through a concatenation of a binary symmetric channel and a channel with randomly inserted bits. The paper points out to a number of security related implications resulting from employing an insertion channel. It is shown that deliberate and secret-key-controlled insertions of random bits into the basic ciphertext provide a security enhancement of the resulting encryption scheme.
Keywords: Binary symmetric channel | Ciphertexts | Encryption schemes | Insertion errors | Light weight | Random bits | Secret key | Security enhancements
Publisher: IEEE
Project: Advanced Techniques of Cryptology, Image Processing and Computational Topology for Information Security 

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