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

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.

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A Novel Audio Cryptosystem Using Chaotic Maps and DNA Encoding

Journal of Computer Networks and Communications ◽

10.1155/2017/2721910 ◽

2017 ◽

Vol 2017 ◽

pp. 1-12 ◽

Cited By ~ 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.

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Lightweight Dynamic Crypto Algorithm for Next Internet Generation

Engineering, Technology & Applied Science Research ◽

10.48084/etasr.2743 ◽

2019 ◽

Vol 9 (3) ◽

pp. 4203-4208

Author(s):

A. H. Al-Omari

Keyword(s):

High Speed ◽

Block Cipher ◽

Cipher Text ◽

Shared Secret ◽

Encryption Decryption ◽

Dynamic Length ◽

And Diffusion ◽

Symmetric Block ◽

Confusion And Diffusion ◽

Secure Transmission

Modern applications, especially real time applications, are hungry for high-speed end-to-end transmission which usually conflicts with the necessary requirements of confidential and secure transmission. In this work, a relatively fast, lightweight and attack-resistant crypto algorithm is proposed. The algorithm is a symmetric block cipher that uses a secure pre-shared secret as the first step. Then, a dynamic length key is generated and inserted inside the cipher text. Upon receiving the cipher text, the receiver extracts the key from the received cipher text to decrypt the message. In this algorithm, ciphering and deciphering are mainly based on simple XoR operations followed by substitutions and transpositions in order to add more confusion and diffusion to the algorithm. Experimental results show faster encryption/decryption time when compared to known encryption standards.

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Secure Image Encryption Algorithm Based on Hyperchaos and Dynamic DNA Coding

Entropy ◽

10.3390/e22070772 ◽

2020 ◽

Vol 22 (7) ◽

pp. 772

Author(s):

Shuqin Zhu ◽

Congxu Zhu

Keyword(s):

Image Encryption ◽

Key Management ◽

Security Analysis ◽

Statistical Characteristics ◽

Hyperchaotic System ◽

Dna Encoding ◽

Chosen Plaintext Attack ◽

Encryption Decryption ◽

The One ◽

Differential Attacks

In this paper, we construct a five dimensional continuous hyperchaotic system and propose an image encryption scheme based on the hyperchaotic system, which adopts DNA dynamic coding mechanism and classical scrambling diffusion encryption structure. In the diffusion stage, two rounds of diffusion are adopted and the rules of DNA encoding (DNA decoding) are dynamically changed according to the pixel value of the plaintext image, that is, the rules of DNA encoding (DNA decoding) used to encrypt different images are different, which makes the algorithm can resist chosen-plaintext attack. The encryption (decryption) key is only the initial value of the chaotic system, which overcomes the difficulty of key management in the “one time pad” encryption system. The experimental results and security analysis show that the algorithm has some advantages of large key space, no obvious statistical characteristics of ciphertext, sensitivity to plaintext and key and able to resist differential attacks and chosen plaintext attack. It has good application prospects.

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A New Image Encryption Scheme Using Dual Chaotic Map Synchronization

The International Arab Journal of Information Technology ◽

10.34028/iajit/18/1/11 ◽

2020 ◽

Vol 18 (1) ◽

Keyword(s):

Image Encryption ◽

Chaotic Systems ◽

Initial Conditions ◽

Chaotic Map ◽

Security Applications ◽

The Common ◽

And Diffusion ◽

Confusion And Diffusion ◽

Sensitivity To Initial Conditions ◽

Diffusion Properties

Chaotic systems behavior attracts many researchers in the field of image encryption. The major advantage of using chaos as the basis for developing a crypto-system is due to its sensitivity to initial conditions and parameter tunning as well as the random-like behavior which resembles the main ingredients of a good cipher namely the confusion and diffusion properties. In this article, we present a new scheme based on the synchronization of dual chaotic systems namely Lorenz and Chen chaotic systems and prove that those chaotic maps can be completely synchronized with other under suitable conditions and specific parameters that make a new addition to the chaotic based encryption systems. This addition provides a master-slave configuration that is utilized to construct the proposed dual synchronized chaos-based cipher scheme. The common security analyses are performed to validate the effectiveness of the proposed scheme. Based on all experiments and analyses, we can conclude that this scheme is secure, efficient, robust, reliable, and can be directly applied successfully for many practical security applications in insecure network channels such as the Internet

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Workshop for Open Source Universal Picture Archiving and Communication Systems (PACS)

10.21236/ada460346 ◽

2006 ◽

Author(s):

Walid G. Tohme

Keyword(s):

Open Source ◽

Communication Systems ◽

Picture Archiving ◽

Picture Archiving And Communication

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Image cipher using image filtering with 3D DNA-based confusion and diffusion strategy

Neural Computing and Applications ◽

10.1007/s00521-021-06225-x ◽

2021 ◽

Author(s):

Zhihua Gan ◽

Xiuli Chai ◽

Xiangcheng Zhi ◽

Wenke Ding ◽

Yang Lu ◽

...

Keyword(s):

Image Filtering ◽

Image Cipher ◽

And Diffusion ◽

Confusion And Diffusion

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Hyperchaotic Image Encryption Based on Multiple Bit Permutation and Diffusion

Entropy ◽

10.3390/e23050510 ◽

2021 ◽

Vol 23 (5) ◽

pp. 510

Author(s):

Taiyong Li ◽

Duzhong Zhang

Keyword(s):

Big Data ◽

Lyapunov Exponents ◽

Image Encryption ◽

Hyperchaotic System ◽

Encryption Scheme ◽

Image Content ◽

Image Security ◽

Level Data ◽

Different Types ◽

And Diffusion

Image security is a hot topic in the era of Internet and big data. Hyperchaotic image encryption, which can effectively prevent unauthorized users from accessing image content, has become more and more popular in the community of image security. In general, such approaches conduct encryption on pixel-level, bit-level, DNA-level data or their combinations, lacking diversity of processed data levels and limiting security. This paper proposes a novel hyperchaotic image encryption scheme via multiple bit permutation and diffusion, namely MBPD, to cope with this issue. Specifically, a four-dimensional hyperchaotic system with three positive Lyapunov exponents is firstly proposed. Second, a hyperchaotic sequence is generated from the proposed hyperchaotic system for consequent encryption operations. Third, multiple bit permutation and diffusion (permutation and/or diffusion can be conducted with 1–8 or more bits) determined by the hyperchaotic sequence is designed. Finally, the proposed MBPD is applied to image encryption. We conduct extensive experiments on a couple of public test images to validate the proposed MBPD. The results verify that the MBPD can effectively resist different types of attacks and has better performance than the compared popular encryption methods.

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