Digital Implementation of an Improved LTE Stream Cipher Snow-3G Based on Hyperchaotic PRNG

SNOW-3G is a stream cipher used by the 3GPP standards as the core part of the confidentiality and integrity algorithms for UMTS and LTE networks. This paper proposes an enhancement of the regular SNOW-3G ciphering algorithm based on HC-PRNG. The proposed cipher scheme is based on hyperchaotic generator which is used as an additional layer to the SNOW-3G architecture to improve the randomness of its output keystream. The objective of this work is to achieve a high security strength of the regular SNOW-3G algorithm while maintaining its standardized properties. The originality of this new scheme is that it provides a good trade-off between good randomness properties, performance, and hardware resources. Numerical simulations, hardware digital implementation, and experimental results using Xilinx FPGA Virtex technology have demonstrated the feasibility and the efficiency of our secure solution while promising technique can be applied to secure the new generation mobile standards. Thorough analysis of statistical randomness is carried out demonstrating the improved statistical randomness properties of the new scheme compared to the standard SNOW-3G, while preserving its resistance against cryptanalytic attacks

Methods for parallel implementation of SIP on SoPC

Dans cet article, nous nous intéressons à une nouvelle méthodologie de conception d'architecture matérielle et logicielle de TSI sur SoPC. Le principe de notre approche est la parallélisation de l'application sur un réseau homogène de processeurs communicants. La méthodologie prévoit de guider l'utilisateur dans son choix de paramétrisation d'un réseau, constitué à partir d'une bibliothèque de composants paramétrables. Des outils d'aide à la parallélisation permettent de faciliter les choix de parallélisation de l'algorithme et guident l'utilisateur vers la définition de l'architecture adéquate. L'étape de conception materielle est fortement automatisée et permet facilement de raffiner l'architecture matérielle. Nous présentons avec la méthode, cet ensemble d'outils de conception logicielle et matérielle

FPGA implementation of an enhanced SNOW-3G stream cipher based on a hyperchaotic system

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