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Comparison of the PM-DC-LM Mode with the Other Common Block Cipher Modes of Operation

Authors:
Petr Zacek
Roman Jasek
David Malanik

Keywords: cryptography; block cipher; mode of operation; PM-DC-LM; polymorphism; deterministic chaos; logistic map

Abstract:
The aim of this paper is to compare the performance of Polymorphous Mode - Deterministic Chaos - Logistic Maps (further only PM-DC-LM) with some of the most commonly used block cipher modes of operation. Among the most notable of these are the Electronic Code Book (ECB), Cipher Block Chaining (CBC), Cipher Feedback (CFB), Output Feedback (OFB), and Counter (CTR). In order to do so, the exclusive OR (XOR) function - instead of a regular block cipher, was used as the encryption algorithm with a Bitmap (BMP) image being used as input data. The testing codes were written in the Python Version 3.4 programming language. Additionally, various operational modes were compared against each other using basic properties like speed or error propagation, among others. The results indicate that PM-DC-LM would seem to be more “random-looking” than the other modes it was tested against and, although the XOR function was used, the output data looked as though it was encrypted. The results also demonstrate the possible advantages in using a polymorphous structure on an image file (i.e. repetitive blocks of data) when compared with the other modes even where the non-standard conditions were set.

Pages: 44 to 48

Copyright: Copyright (c) IARIA, 2015

Publication date: August 23, 2015

Published in: conference

ISSN: 2162-2116

ISBN: 978-1-61208-427-5

Location: Venice, Italy

Dates: from August 23, 2015 to August 28, 2015