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Article Dans Une Revue Fractal and Fractional Année : 2023

Design, Hardware Implementation on FPGA and Performance Analysis of Three Chaos-Based Stream Ciphers

Résumé

In this paper, we come up with three secure chaos-based stream ciphers, implemented on an FPGA board, for data confidentiality and integrity. To do so, first, we performed the statistical security and hardware metrics of certain discrete chaotic map models, such as the Logistic, Skew-Tent, PWLCM, 3D-Chebyshev map, and 32-bit LFSR, which are the main components of the proposed chaotic generators. Based on the performance analysis collected from the discrete chaotic maps, we then designed, implemented, and analyzed the performance of three proposed robust pseudo-random number generators of chaotic sequences (PRNGs-CS) and their corresponding stream ciphers. The proposed PRNGs-CS are based on the predefined coupling matrix M. The latter achieves a weak mixing of the chaotic maps and a chaotic multiplexing technique or XOR operator for the output function. Therefore, the randomness of the sequences generated is expanded as well as their lengths, and divide-and-conquer attacks on chaotic systems are avoided. In addition, the proposed PRNGs-CS contain polynomial mappings of at least degree 2 or 3 to make algebraic attacks very difficult. Various experimental results obtained and analysis of performance in opposition to different kinds of numerical and cryptographic attacks determine the high level of security and good hardware metrics achieved by the proposed chaos system. The proposed system outperformed the state-of-the-art works in terms of high-security level and a high throughput which can be considered an alternative to the standard methods.
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Dates et versions

hal-04011560 , version 1 (02-03-2023)

Identifiants

Citer

Fethi Dridi, Safwan El Assad, Wajih El Hadj Youssef, Mohsen Machhout. Design, Hardware Implementation on FPGA and Performance Analysis of Three Chaos-Based Stream Ciphers. Fractal and Fractional, 2023, 7 (2), pp.197. ⟨10.3390/fractalfract7020197⟩. ⟨hal-04011560⟩
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