Authors: Mihaljević, Miodrag J. 
Radonjić, Aleksandar
Wang, Lianhai
Xu, Shujiang
Affiliations: Computer Science 
Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Security Enhanced Symmetric Key Encryption Employing an Integer Code for the Erasure Channel
Journal: Symmetry
Volume: 14
Issue: 8
First page: 1709
Issue Date: 2022
Rank: ~M22
ISSN: 2073-8994
DOI: 10.3390/sym14081709
An instance of the framework for cryptographic security enhancement of symmetric-key encryption employing a dedicated error correction encoding is addressed. The main components of the proposal are: (i) a dedicated error correction coding and (ii) the use of a dedicated simulator of the noisy channel. The proposed error correction coding is designed for the binary erasure channel where at most one bit is erased in each codeword byte. The proposed encryption has been evaluated in the traditional scenario where we consider the advantage of an attacker to correctly decide to which of two known messages the given ciphertext corresponds. The evaluation shows that the proposed encryption provides a reduction of the considered attacker’s advantage in comparison with the initial encryption setting. The implementation complexity of the proposed encryption is considered, and it implies a suitable trade-off between increased security and increased implementation complexity.
Keywords: encryption | error correction coding | security enhancement | security evaluation | symmetric keys
Publisher: MDPI

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