scholarly journals Secure Medical Image Processing Using Chaos And Dna Encryption Enhanced Using Reversible Data Hiding

2019 ◽  
Vol 8 (6S) ◽  
pp. 1062-1067 ◽  
Keyword(s):  
Piecewise Linear ◽  
Chaotic Map ◽  
Logistic Map ◽  
Extraction Process ◽  
Test Results ◽  
Dna Encoding ◽  
Piecewise Linear Chaotic Map ◽  
Medication Information ◽  
Standard Information ◽  
Picture Transmission

Paper In the field of medication, information security is central. The photographs that are dealt with in the information base and those that are transmitted over the web ought to be shielded from threatening exercises. This paper proposes a novel picture encryption plan helped with reversible information covering framework to improve the nature of the shielded picture transmission. Confusion and DNA encoding norms are utilized for the encryption philosophy. Piecewise Linear Chaotic Map (PWLCM) and Logistic Map are related with produce all parameters the demonstrated calculation needs and DNA encoding headway fills in as an accomplice instrument. The information disguising and extraction process in the blended area submits mistake during the unraveling framework. This is in light of the way that the pixel estimations of the blended spread picture change during the information concealing technique. Thusly the usage of reversible information covering structure rather than the standard information masking methods helps in recuperation of the spread picture, acknowledging immaculate unscrambling. The test results display that the proposed procedure beats the current secure picture transmission approachs

scholarly journals A FAST DIGITAL CHAOTIC GENERATOR FOR SECURE COMMUNICATION

2010 ◽  
Vol 20 (12) ◽  
pp. 3969-3987 ◽  
Author(s):  
SHIH-LIANG CHEN ◽  
TINGTING HWANG ◽  
SHU-MING CHANG ◽  
WEN-WEI LIN
Keyword(s):  
Secure Communication ◽  
Piecewise Linear ◽  
Chaotic Map ◽  
Logistic Map ◽  
Minimal Length ◽  
Statistical Testing ◽  
Large Parameter ◽  
Hardware Cost ◽  
Piecewise Linear Chaotic Map ◽  
Large Parameter Space

In this paper, we propose a digitalized chaotic map, Variational Logistic Map (VLM), modified from classical logistic map to be used in secure communication. Compared with classical logistic map, VLM has large parameter space without windows and can be implemented at low hardware cost. Referring to statistical testing suites SP800-22 and TestU01, VLM with the proposed scrambling method can significantly improve the output complexity as compared with other logistic-map based generators and piecewise linear chaotic map. Experiments show that the throughput of a 32-bit VLM is up to 3200 Mbps in 0.18 μm process. Furthermore, a chaotic crypto scheme, Multi-VLM (MVLM), constructed by four 32-bit VLMs can generate an output sequence with a minimal length equal to 2128-1 by a 128-bit external key.

GENERALIZED ARITHMETIC CODING USING DISCRETE CHAOTIC MAPS

2012 ◽  
Vol 22 (10) ◽  
pp. 1250256 ◽  
Author(s):  
QIUZHEN LIN ◽  
KWOK-WO WONG ◽  
JIANYONG CHEN
Keyword(s):  
Chaotic Maps ◽  
Piecewise Linear ◽  
Chaotic Map ◽  
Interval Mapping ◽  
International Standards ◽  
Arithmetic Coding ◽  
Initial Value ◽  
Compression Performance ◽  
Piecewise Linear Chaotic Map ◽  
Generalized Arithmetic

Making use of the Lebesgue measure preserving property of the piecewise linear chaotic map, a discrete piecewise linear chaotic map is employed to perform the generalized arithmetic coding, which is an optimal entropy coding algorithm adopted by international standards. After a number of message symbols have been encoded by the reverse interval mapping, an enlargement on the encoding interval is performed and some codeword bits are exported accordingly. Based on the enlarged encoding interval, the subsequent symbols are encoded with the modified chaotic maps, the lower and upper bounds of which are determined by the final encoding interval of the symbols already encoded. In the decoding process, the message symbols are recovered by iterating the corresponding chaotic map from an appropriate initial value. The encoding interval enlargement is tracked by performing reverse interval mapping on the decoded symbols. More codeword bits are shifted into the register to form the initial value for decoding the subsequent symbols. Simulation results verify that the compression performance of our scheme is very close to the entropy bound and is comparable to traditional finite-precision arithmetic coding. In addition, cryptographic capability can be integrated into our scheme to make it a joint compression and encryption scheme. Its security is enhanced when compared with the existing schemes based on traditional arithmetic coding.

A Novel Joint for Image Encryption and Coding Using Piecewise Linear Chaotic Map

2016 ◽  
Vol 13 (10) ◽  
pp. 7137-7143
Author(s):  
Bin Wang ◽  
Shihua Zhou ◽  
Changjun Zhou ◽  
Xuedong Zheng
Keyword(s):  
Image Encryption ◽  
Binary Data ◽  
Piecewise Linear ◽  
Chaotic Map ◽  
Secret Key ◽  
Initial Value ◽  
Tent Map ◽  
Piecewise Linear Chaotic Map ◽  
Plain Image ◽  
Gray Level Image

Due to the features of chaotic maps, they are widely used into encrypting and coding information. Inspired by the tent map which is used to code and encrypt binary data, a novel joint for image encryption and coding based on piecewise linear chaotic map is proposed in this paper. We divide piecewise linear chaotic map into 256 parts according to the property of gray level image. In order to enhance the security of image, the image is subsequently encrypted by the piecewise linear chaotic map in which the secret key of image encryption is determined by the initial of chaotic map. This stage of image encryption possesses high key and plain-image sensitivities which results from the secret key related to plain-image. Finally, the encrypted image is coded by the piecewise linear chaotic map with a different initial value. The experimental results validate the effect of the proposed system and demonstrate that the encrypted and coded image is secure for transmission.

Deterministic stochastic resonance in a piecewise linear chaotic map

1998 ◽  
Vol 58 (6) ◽  
pp. 8009-8012 ◽  
Author(s):  
Sitabhra Sinha ◽  
Bikas K. Chakrabarti
Keyword(s):  
Stochastic Resonance ◽  
Piecewise Linear ◽  
Chaotic Map ◽  
Piecewise Linear Chaotic Map

scholarly journals A Nonlinearly Modulated Logistic Map With Delay for Image Encryption

Electronics ◽  
2018 ◽  
Vol 7 (11) ◽  
pp. 326 ◽  
Author(s):  
Shouliang Li ◽  
Benshun Yin ◽  
Weikang Ding ◽  
Tongfeng Zhang ◽  
Yide Ma
Keyword(s):  
Lyapunov Exponents ◽  
Image Encryption ◽  
Chaotic Maps ◽  
Chaotic Map ◽  
Logistic Map ◽  
Delay Model ◽  
Test Results ◽  
Bit Plane ◽  
Differential Attacks ◽  
Image Encryption Algorithm

Considering that a majority of the traditional one-dimensional discrete chaotic maps have disadvantages including a relatively narrow chaotic range, smaller Lyapunov exponents, and excessive periodic windows, a new nonlinearly modulated Logistic map with delay model (NMLD) is proposed. Accordingly, a chaotic map called a first-order Feigenbaum-Logistic NMLD (FL-NMLD) is proposed. Simulation results demonstrate that FL-NMLD has a considerably wider chaotic range, larger Lyapunov exponents, and superior ergodicity compared with existing chaotic maps. Based on FL-NMLD, we propose a new image encryption algorithm that joins the pixel plane and bit-plane shuffle (JPB). The simulation and test results confirm that JPB has higher security than simple pixel-plane encryption and is faster than simple bit-plane encryption. Moreover, it can resist the majority of attacks including statistical and differential attacks.

A Novel Medical Image Tamper Detection and Recovery Scheme using LSB Embedding and PWLCM

2014 ◽  
Vol 6 (2) ◽  
pp. 1-22
Author(s):  
Lin Gao ◽  
Tiegang Gao
Keyword(s):  
Medical Image ◽  
Piecewise Linear ◽  
Chaotic Map ◽  
Visual Quality ◽  
Tamper Detection ◽  
Experimental Results ◽  
Least Significant Bit ◽  
Piecewise Linear Chaotic Map ◽  
Watermark Embedding ◽  
Recovery Scheme

A novel medical image tamper detection and recovery scheme based on Least Significant Bit (LSB) embedding and Piecewise Linear Chaotic Map (PWLCM) is proposed in the paper. To meet the demand of medical usage, the proposed scheme not only improved the precision of detection compared with block-wise scheme of watermark embedding, but also guaranteed the security of the scheme by applying PWLCM. To evaluate the proposed scheme, a former scheme proposed by Xiao et al is used for comparison; the two scheme's visual quality, accuracy of detection, recovery quality and security are tested during the experiment. The experimental results suggest that the proposed scheme meets the demand of visual quality and security for using in medical image tamper detection and recovery.

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