scholarly journals A Novel Audio Cryptosystem Using Chaotic Maps and DNA Encoding

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
S. J. Sheela ◽  
K. V. Suresh ◽  
Deepaknath Tandur
Keyword(s):  
Deoxyribonucleic Acid ◽  
Chaotic Maps ◽  
Chaotic Behavior ◽  
Dna Encoding ◽  
Radio Communication ◽  
Security Applications ◽  
Comparison Results ◽  
Good Potential ◽  
Encryption Decryption ◽  
Cryptographic Attacks

Chaotic maps have good potential in security applications due to their inherent characteristics relevant to cryptography. This paper introduces a new audio cryptosystem based on chaotic maps, hybrid chaotic shift transform (HCST), and deoxyribonucleic acid (DNA) encoding rules. The scheme uses chaotic maps such as two-dimensional modified Henon map (2D-MHM) and standard map. The 2D-MHM which has sophisticated chaotic behavior for an extensive range of control parameters is used to perform HCST. DNA encoding technology is used as an auxiliary tool which enhances the security of the cryptosystem. The performance of the algorithm is evaluated for various speech signals using different encryption/decryption quality metrics. The simulation and comparison results show that the algorithm can achieve good encryption results and is able to resist several cryptographic attacks. The various types of analysis revealed that the algorithm is suitable for narrow band radio communication and real-time speech encryption applications.

Secured Transmission of Clinical Signals Using Hyperchaotic DNA Confusion and Diffusion Transform

2021 ◽  
pp. 782-805
Author(s):  
S. J. Sheela ◽  
K. V. Suresh ◽  
Deepaknath Tandur
Keyword(s):  
Communication Systems ◽  
Disease Diagnosis ◽  
Hyperchaotic System ◽  
Dna Encoding ◽  
Good Potential ◽  
Encryption Decryption ◽  
Picture Archiving And Communication ◽  
Cryptographic Attacks ◽  
And Diffusion ◽  
Confusion And Diffusion

Secured transmission of electrophysiological signals is one of the crucial requirements in telemedicine, telemonitoring, cardiovascular disease diagnosis (CVD) and telecardiology applications. The chaotic systems have good potential in secured transmission of ECG/EEG signals due to their inherent characteristics relevant to cryptography. This article introduces a new cryptosystem for clinical signals such as electrocardiograms (ECG) and electroencephalograms (EEG) based on hyperchaotic DNA confusion and diffusion transform (HC-DNA-CDT). The algorithm uses a hyperchaotic system with cubic nonlinearity and deoxyribonucleic acid (DNA) encoding rules. The performance of the cryptosystem is evaluated for different clinical signals using different encryption/decryption quality metrics. Simulation and comparison results show that the cryptosystem yield good encryption results and is able to resist various cryptographic attacks. The proposed algorithm can also be used in picture archiving and communication systems (PACS) to provide an efficient sharing of medical image over the networks.

Secured Transmission of Clinical Signals Using Hyperchaotic DNA Confusion and Diffusion Transform

2019 ◽  
Vol 11 (3) ◽  
pp. 43-64 ◽  
Author(s):  
S. J. Sheela ◽  
K. V. Suresh ◽  
Deepaknath Tandur
Keyword(s):  
Communication Systems ◽  
Disease Diagnosis ◽  
Hyperchaotic System ◽  
Dna Encoding ◽  
Comparison Results ◽  
Encryption Decryption ◽  
Picture Archiving And Communication ◽  
Cryptographic Attacks ◽  
And Diffusion ◽  
Confusion And Diffusion

Secured transmission of electrophysiological signals is one of the crucial requirements in telemedicine, telemonitoring, cardiovascular disease diagnosis (CVD) and telecardiology applications. The chaotic systems have good potential in secured transmission of ECG/EEG signals due to their inherent characteristics relevant to cryptography. This article introduces a new cryptosystem for clinical signals such as electrocardiograms (ECG) and electroencephalograms (EEG) based on hyperchaotic DNA confusion and diffusion transform (HC-DNA-CDT). The algorithm uses a hyperchaotic system with cubic nonlinearity and deoxyribonucleic acid (DNA) encoding rules. The performance of the cryptosystem is evaluated for different clinical signals using different encryption/decryption quality metrics. Simulation and comparison results show that the cryptosystem yield good encryption results and is able to resist various cryptographic attacks. The proposed algorithm can also be used in picture archiving and communication systems (PACS) to provide an efficient sharing of medical image over the networks.

scholarly journals A New Beta Chaotic Map with DNA Encoding for Color Image Encryption

2020 ◽  
pp. 2371-2384
Author(s):  
Sarab M. Hameed ◽  
Ibtisam A. Taqi
Keyword(s):  
Deoxyribonucleic Acid ◽  
Chaotic Maps ◽  
Color Image ◽  
Signal To Noise Ratio ◽  
Chaotic Map ◽  
Key Generation ◽  
Dna Encoding ◽  
Xor Operation ◽  
Industrial Inspection ◽  
Plain Image

Images hold important information, especially in military and commercial surveillance as well as in industrial inspection and communication. Therefore, the protection of the image from abuse, unauthorized access, and damage became a significant demand. This paper introduces a new Beta chaotic map for encrypting and confusing the color image with Deoxyribonucleic Acid (DNA) sequence. First, the DNA addition operation is used for diffusing each component of the plain image. Then, a new Beta chaotic map is used for shuffling the DNA color image. In addition, two chaotic maps, namely the proposed new Beta and Sine chaotic maps, are used for key generation. Finally, the DNA XOR operation is applied between the generated key and shuffled DNA image to produce the cipher image.  The experimental results prove that the proposed method surpassed the other methods in terms of Mean Square Error (MSE), Peak Signal-To-Noise Ratio (PSNR), entropy, and correlation coefficient.

scholarly journals VoIP Speech Encryption System Using Stream Cipher with Chaotic Key Generator

2021 ◽  
pp. 240-248
Author(s):  
Mahmood Khalel Ibrahem ◽  
Hussein Ali Kassim
Keyword(s):  
Stream Cipher ◽  
Chaotic Maps ◽  
Initial Conditions ◽  
Local Network ◽  
Average Delay ◽  
Performance Quality ◽  
Chaotic Cryptography ◽  
Wireless Telecommunication ◽  
Encryption Decryption ◽  
Voice Data

Recently, with the development multimedia technologies and wireless telecommunication, Voice over Internet Protocol, becomes widely used in communication between connecting people, VoIP allows people that are connected to the local network or the Internet to make voice calls using digital connection instead of based on the analog traditional telephone network. The technologies of Internet doesn’t give any security mechanism and there is no way to guarntee that the voice streams will be transmitted over Internet or network have not been intercepted in between. In this paper, VoIP is developed using stream cipher algorithm and the chaotic cryptography for key generator. It is based on the chaotic maps for generating a one-time random key used to encrypt each voice data in the RTP packet. Chaotic maps have been used successfully for encryption bulky data such as voice, image, and video, chaotic cryptography has good properties such as long periodicity, pseudo-randomness, and sensitivity to initial conditions and change in system parameters. A VoIP system was successfully implemented based on the on ITU-T G.729 for voice codec, as a multimedia encoding of Real-time Transport Protocol payload data, then, apply a proposed method to generate three-mixed logistic chaotic maps [1] and then analysis the encryption/ decryption quality measures for speech signal based this method. The experimental work demonstrates that the proposed scheme can provide confidentiality to voice data with voice over IP performance quality, minimum lost in transmitted packet, minimum average delay, and minimum jitter.

Sufficient condition for chaotic maps to yield chaotic behavior after FM

2008 ◽  
Vol 44 (3) ◽  
pp. 1240-1248 ◽  
Author(s):  
A. Ashtari ◽  
G. Thomas ◽  
W. Kinsner ◽  
B.C. Flores
Keyword(s):  
Chaotic Maps ◽  
Chaotic Behavior ◽  
Sufficient Condition

scholarly journals Extinction and Permanence of a Three-Species Lotka-Volterra System with Impulsive Control Strategies

2008 ◽  
Vol 2008 ◽  
pp. 1-18 ◽  
Author(s):  
Hunki Baek
Keyword(s):  
Chemical Control ◽  
Small Amplitude ◽  
Floquet Theory ◽  
Impulsive Control ◽  
Chaotic Behavior ◽  
Control Strategies ◽  
Perturbation Techniques ◽  
Top Predator ◽  
Volterra System ◽  
Comparison Results

A three-species Lotka-Volterra system with impulsive control strategies containing the biological control (the constant impulse) and the chemical control (the proportional impulse) with the same period, but not simultaneously, is investigated. By applying the Floquet theory of impulsive differential equation and small amplitude perturbation techniques to the system, we find conditions for local and global stabilities of a lower-level prey and top-predator free periodic solution of the system. In addition, it is shown that the system is permanent under some conditions by using comparison results of impulsive differential inequalities. We also give a numerical example that seems to indicate the existence of chaotic behavior.

Improving Security of RFID Authentication Protocol Based on Fast Fourier Transform and Deoxyribonucleic Acid

2017 ◽  
Vol 7 (10) ◽  
pp. 82
Author(s):  
Vibhu Grewal
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Deoxyribonucleic Acid ◽  
Security Threats ◽  
Dna Encoding ◽  
Ensemble Techniques ◽  
Significant Performance ◽  
Heterogeneous Ensemble ◽  
Performance Gains ◽  
Single Technique

RFID based applications used for many purposes like tagging and tracking for tag and reader in IoT deployment. This is because of its powerful features compared with similar techniques such as barcodes. In contrast, various attacks and security threats cause to RFID system. The aim of this paper is to use a heterogeneous ensemble of Fast Fourier Transform algorithm and Deoxyribonucleic acid (DNA) sequence operations. This is different from existing ECC work in the sense that we are proposing to combine state-of-the-art encryption methods by ensemble techniques instead of focusing on single technique. Our proposed protocol is highly secure and its strength is based on FFT and DNA encoding rules. When compared with ECC technique we validate and demonstrate our approach experimentally and it leads to significant performance gains.

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