Diffusion Behaviour of Cryptographic Primitives in Feistel Networks

Vasilios Katos

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Paper

Diffusion Behaviour of Cryptographic Primitives in Feistel Networks

In Proceedings of the 2nd International Workshop on Security in Information Systems - Volume 0ICEIS, 79-87, 2004 , Porto, Portugal

Author: Vasilios Katos

Affiliation: University of Portsmouth, United Kingdom

Abstract: The concept of product encryption is resident in the majority of symmetric block ciphers. Along with product encryption, two properties were also defined by Shannon, namely diffusion and confusion. In a product cipher such as a Feistel Network (FN), or generally a Substitution Permutation Network (SPN), diffusion is dependent upon two types of primitives, the nonlinear transformation and the swapping scheme. Different approaches to diffusion analysis considered either the topology of a FN, or the nonlinear transformation. This paper describes a metric for diffusion in a way suitable for investigating the behaviour of the underlying primitives of a FN.

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Paper citation in several formats:

Katos, V. (2004). Diffusion Behaviour of Cryptographic Primitives in Feistel Networks. In Proceedings of the 2nd International Workshop on Security in Information Systems (ICEIS 2004) - WOSIS; ISBN 972-8865-07-4, SciTePress, pages 79-87. DOI: 10.5220/0002661300790087

@conference{wosis04,
author={Vasilios Katos.},
title={Diffusion Behaviour of Cryptographic Primitives in Feistel Networks},
booktitle={Proceedings of the 2nd International Workshop on Security in Information Systems (ICEIS 2004) - WOSIS},
year={2004},
pages={79-87},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002661300790087},
isbn={972-8865-07-4},
}

TY - CONF

JO - Proceedings of the 2nd International Workshop on Security in Information Systems (ICEIS 2004) - WOSIS
TI - Diffusion Behaviour of Cryptographic Primitives in Feistel Networks
SN - 972-8865-07-4
AU - Katos, V.
PY - 2004
SP - 79
EP - 87
DO - 10.5220/0002661300790087
PB - SciTePress