Open AccessPractical realisation of a return map immune Lorenz‐based chaotic stream cipher in circuitry
Author(s) -
Brown Daniel,
Hedayatipour Ava,
Majumder Md. Badruddoja,
Rose Garrett S.,
McFarlane Nicole,
Materassi Donatello
Publication year - 2018
Publication title -
iet computers and digital techniques
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.219
H-Index - 46
ISSN - 1751-861X
DOI - 10.1049/iet-cdt.2018.5005
Subject(s) - stream cipher , computer science , cipher , lorenz system , chaotic , realisation , encryption , process (computing) , state (computer science) , attractor , electronic engineering , cryptography , computer hardware , algorithm , engineering , mathematics , artificial intelligence , computer network , physics , mathematical analysis , quantum mechanics , operating system
The authors report on the realisation of an encryption process in real‐time analogue circuitry using on‐the‐shelf components and minimal processing power. Self‐synchronisation of two similar systems through a single shared state is a unique property of the chaotic Lorenz attractor system. In this process, the single parameters of the system are modulated to mask a message before transmitting securely through a single‐shared state. However, these techniques are vulnerable to the return map attack. They show that time‐scaling can further obfuscate the modulation process and improve return map attack immunity and demonstrate a fabricated printed circuit board implementation of the system.