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Enhanced Software Implementation of a Chaos-Based Stream Cipher

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.
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https://hal-insa-rennes.archives-ouvertes.fr/hal-02157298
Contributor : Guillaume Gautier <>
Submitted on : Sunday, June 16, 2019 - 1:09:50 PM
Last modification on : Wednesday, August 5, 2020 - 3:50:44 AM

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Guillaume Gautier, Safwan Assad, Olivier Déforges, Sylvain Guilley, Adrien Facon, et al.. Enhanced Software Implementation of a Chaos-Based Stream Cipher. SECURWARE 2018, Sep 2018, Venise, Italy. pp.128-133. ⟨hal-02157298⟩

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