Synchronized hybrid chaotic generators: Application to real-time wireless speech encryption

Azzaz, Mohamed Salah; Tanougast, Camel; Sadoudi, Saïd; Bouridane, Ahmed

doi:10.1016/j.cnsns.2012.12.018

Cited by 52 publications

(25 citation statements)

References 24 publications

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“…As previously mentioned, chaos generators and chaotic signals have been implemented extensively in the field of private communications [1,14,29,34]. However, we still search for a criterion for choosing the best chaotic masking signal.…”

Section: Selection Criteria For the Chaotic Signalmentioning

confidence: 98%

Performance improvement of chaotic encryption via energy and frequency location criteria

Soriano-Sánchez

Posadas–Castillo

Platas-Garza

et al. 2015

Mathematics and Computers in Simulation

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Section: Selection Criteria For the Chaotic Signalmentioning

confidence: 98%

Performance improvement of chaotic encryption via energy and frequency location criteria

Soriano-Sánchez

Posadas–Castillo

Platas-Garza

et al. 2015

Mathematics and Computers in Simulation

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“…In recent year, the speech encryption signal has been widely used in civilian communication and military systems, so that the protection for these signals is a very important requirement [1], [2]. It is generally possible to classify speech encryption techniques into two kinds; analog and digital schemes [3].…”

Section: Introductionmentioning

confidence: 99%

FPGA Design of Encryption Speech system using Synchronized Fixed-Point Chaotic Maps Based Stream Ciphers

2019

ijeat

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In this work, speech encryption using synchronized fixed-point chaotic map-based stream ciphers (SFPCM-SC) is suggested. Five chaotic maps named quadratic, henon, logistic, lozi and duffing are synchronized by using master-slave synchronization technique and then used to generate the pseudo random bit generator (PRBG) using fixed-point converter. The PRBG is then Xor-ed with digitized speech signal where the encrypted signal is created. In the other side, the same map is synchronized with the master one and used to recover the original speech signal. First this work is simulated by using MATLAB and then built the design using Xilinx system generator (XSG). Finally, the hardware co-simulation is applied for the proposed system by using FPGA SP605 XC6SLX45T device. The results show that the error between master and slave become zero after a small period and the original speech signal is recovered with real time environment in successful.

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“…The histogram analysis has been taken account to prove the strength of our algorithm, and the results are shown in Figs. 4,5,6,7,8,9, and 10. Histogram of input speech sample shown in Fig.…”

Section: Histogram Analysismentioning

confidence: 99%

“…The chaotic methods generally rely on large numbers (chaos) belong to nonlinear dynamics field [4]. Chaoticbased cryptographic functions follow deterministic dynamics, non-guessable behavior with non-linear functions and chaos properties [5][6][7]. Chaotic-based cryptography combines the traditional cryptographic techniques and the chaotic synchronization to enhance the degree of security [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Speech encryption using chaotic shift keying for secured speech communication

Sathiyamurthi¹,

Ramakrishnan²

2017

J AUDIO SPEECH MUSIC PROC.

109

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This paper throws light on chaotic shift keying-based speech encryption and decryption method. In this method, the input speech signals are sampled and its values are segmented into four levels, namely L 0 , L 1 , L 2 , and L 3 . Each level of sampled values is permuted using four chaotic generators such as logistic map, tent map, quadratic map, and Bernoulli's map. A chaotic shift keying mechanism assigns logistic map for L 0 , tent map for L 1 , quadratic map for L 2 , and Bernoulli's map for L 3 for shuffling the speech samples at every level. Further, the sampled values are permuted using Chen map which uncovers the chaotic behavior. Various testing methods are applied to analyze the efficiency of the system. The results prove that the proposed system is highly secured against the attackers and possesses a powerful diffusion and confusion mechanism for better speech communication in the field of telecommunication.

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Synchronized hybrid chaotic generators: Application to real-time wireless speech encryption

Cited by 52 publications

References 24 publications

Performance improvement of chaotic encryption via energy and frequency location criteria

Performance improvement of chaotic encryption via energy and frequency location criteria

FPGA Design of Encryption Speech system using Synchronized Fixed-Point Chaotic Maps Based Stream Ciphers

Speech encryption using chaotic shift keying for secured speech communication

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