FPGA realization of speech encryption based on modified chaotic logistic map

Tolba, Mohamed F.; Sayed, Wafaa S.; Radwan, Ahmed G.; Abd-El-Hfiz, Salwa K.

doi:10.1109/icit.2018.8352387

Cited by 13 publications

(3 citation statements)

References 13 publications

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“…Pande and Zambreno [28] have presented a modified logistic map dealing with double floating point precision to increase the Lyapunov exponent and uniformity of bifurcation map, which has been implemented in one of the top family FPGA devices of Xilinx, the Virtex-6. Tolba et al [29] have investigated Speech Encryption using a Virtex-5 using modified logistic map with 3 × registers and 2 × multipliers as well as 2 × adders to deal with 32-bits in fixed-point representation. Dabal and Pelka [30] has adopted logistic map using the expression x n +1 = (4 x n )(1 − x n ) which implies in an extra subtraction operation to perform the (1 − x n ) .…”

Section: Resultsmentioning

confidence: 99%

Minimal digital chaotic system

Nepomuceno

Lima

Arias-García

et al. 2019

Chaos, Solitons & Fractals

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Section: Resultsmentioning

confidence: 99%

Minimal digital chaotic system

Nepomuceno

Lima

Arias-García

et al. 2019

Chaos, Solitons & Fractals

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“…Table 15 shows the maximum frequency obtained for both encryption designs where the design without key generation and design with key generation achieve a maximum frequency of 616.96 15 based on Virtex-5 FPGA XC5VLX50T. The proposed encryption scheme uses much fewer hardware resources when compared to previous work presented in [14], [15], [53]. Also, the proposed scheme achieved the best throughput among all techniques.…”

Section: A Computational Time Analysismentioning

confidence: 95%

DS2B: Dynamic and Secure Substitution Box for Efficient Speech Encryption Engine

et al. 2021

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This paper proposes an efficient encryption technique based on Dynamic and Secure Substitution Box (DS2B) design suitable for IoT and resource-constrained platforms. The DS2B has the advantages of simple structure and good encryption performance. A different number of strong S-boxes could be generated with minor variations in the DS2B parameters. Performance analyses of the DS2B, including differential/linear cryptanalysis, bijective, nonlinearity, strict avalanche criterion (SAC), and bit independence criterion (BIC) have been presented where high nonlinearity, and low differential uniformity are achieved. Besides, a comparison with recent S-boxes is introduced which shows the robustness of the DS2B. To verify the DS2B, a speech encryption engine was realized on FPGA. Various security analyses were evaluated including the National Institute of Standards & Technology (NIST) statistical test suite, number of samples changes rate NSCR, mean square error (MSE), correlation, histogram, and spectrogram. In this work, the silence periods are encrypted in a way that makes them much harder to detect using the DS2B. The proposed encryption scheme achieved a throughput of 9.87 G bit/s, which is higher than previous work. A Xilinx Nexys 4 FPGA evaluation board was used for implementing and verifying the design.

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“…Furthermore, discrete chaotic functions are hardware friendly and easy to implement on currently available modules. [12,13,14] .…”

Section: Introductionmentioning

confidence: 99%

A Finite Precision Implementation of an Image Encryption Scheme Based on DNA Encoding and Binarized Chaotic Cores

2021

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One dimensional chaotic maps suffer from limited number of control parameters and converged periodicity, specially under finite precision implementation, making them unsuitable for hardware based ciphering systems. This paper first discusses the limited periodicity of 1D maps under fixed point precision, then, an image encryption algorithm based on DNA encoding and two specially configured binarized chaotic cores is presented. The function of both cores is to perform the confusion and diffusion stages of the image by generating pseudo random numbers with excellent cryptographic properties. DNA encoding adds an extra layer of security to the algorithm by converting both the image and chaotic stream to DNA sequences using specific DNA encoding rule. Initial values of both chaotic cores are image dependent based on a calculated hamming distance. These initial condition and the utilized DNA rules composes the overall secret key of the system with a total length of 336 bits. On the condition that all calculations involved in the scheme are based on binary integer arithmetic, all performed security analysis subjected to the scheme proved the system to withstand known attacks with excellent encryption properties.

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FPGA realization of speech encryption based on modified chaotic logistic map

Cited by 13 publications

References 13 publications

Minimal digital chaotic system

Minimal digital chaotic system

DS2B: Dynamic and Secure Substitution Box for Efficient Speech Encryption Engine

A Finite Precision Implementation of an Image Encryption Scheme Based on DNA Encoding and Binarized Chaotic Cores

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