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Enhanced Software Implementation of a Chaos-Based Stream Cipher

Authors:
Guillaume Gautier
Safwan El Assad
Olivier Deforges
Sylvain Guilley
Adrien Facon
Wassim Hamidouche

Keywords: Chaos-based stream ciphers, Constant time, Statistical analysis, Computational performance.

Abstract:
Cipher algorithms have been created a long time ago to protect sensitive information. With the evolution of technology, particularly the increase of computational power, the multiplication of devices, the interconnection of those devices, ciphers need to be created and/or enhanced to match challenges brought by this new environment. In general, chaos-based stream ciphers have three shortcomings: their implementation is not constant-time, they have weak keys, and are not portable. We show in this paper how to overcome those three limitations in the case of our stream cipher. The stream cipher performance including statistical analysis and computational performance are carried out and compared to state-of-the-art algorithms: Advanced Encryption Standard (AES)-CounTeR (CTR), HC-128 and Rabbit.

Pages: 128 to 133

Copyright: Copyright (c) IARIA, 2018

Publication date: September 16, 2018

Published in: conference

ISSN: 2162-2116

ISBN: 978-1-61208-661-3

Location: Venice, Italy

Dates: from September 16, 2018 to September 20, 2018