Visual Meaningful Encryption Scheme Using Intertwinning Logistic Map

A visually meaningful image encryption scheme with an asymmetric structure based on the discrete wavelet transform (DWT) and Schur decomposition is proposed in this study. First, the RSA algorithm is used to generate the initial values for the chaotic system to produce the random sequence. Then, both scrambling and diffusion operations are performed on the plain image to obtain the preencrypted image. Moreover, the Schur decomposition is applied on the preencrypted plain image to obtain the upper triangular and orthogonal matrices. Second, the cover image is scrambled followed by a DWT operation. Four subbands are then formed, namely, LL, HL, LH, and HH. Finally, the former upper triangular matrix and orthogonal matrix are embedded into subbands LH and HH produced by the cover image. After the application of the inverse DWT and inverse scrambling operation, the final visually meaningful cover image embedded with a secret plain image can be obtained. No one can identify any useful information about the plain image from the final embedded cover image, nor can anybody know that there is any hidden secret image. Experimental simulations show that the normalized correlation values between the original cover image and the final visually meaningful cover image are approximately 0.9997. Therefore, the proposed encryption scheme is imperceptible for secret image communications.

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“…Reference [21] Reference [36] Reference [37] Reference [38] Figure 8: e bar chart of the PSNR. [11] 99.60 33.48 Reference [17] 99.6395 33.3992…”

Section: Oursmentioning

confidence: 99%

Visually Meaningful Image Encryption Scheme Based on DWT and Schur Decomposition

Dong

Huang

2021

Security and Communication Networks

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“…[3,5,25,26,27,28], ours has the smallest correlation values in all directions therefore, the proposed cryptosystem protects the images against statistical attacks. In addition to the fact that the cryptosystem owns a key space suitable to resist to the brute force attack, also, the cryptosystem must be very sensitive to their keys [34][35], where even there is only a tenuous variance of 10 −15 between the encryption and decryption keys leads to failure of decryption. To evaluate the sensibility of key of our proposed algorithm, we decrypt Lena image with tenuous variance in any of the parameters of the secret key, the results are shown in Figure 10.…”

Section: The Correlation Coefficientsmentioning

confidence: 99%

A Tweakable Image Encryption Algorithm Using an Improved Logistic Chaotic Map

Herbadji¹,

Derouiche²,

Belmeguenaï³

et al. 2019

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This paper aims to improves the chaotic behavior of classical logistic chaotic map for image encryption. First, this classical technique was enhanced, and the effectiveness of the improved technique was verified by the bifurcation diagram and Lyapunov exponent, in comparison to the classical technique. On this basis, an efficient tweakable image encryption algorithm was proposed to protect the security of digital image transmission. The proposed algorithm adopts a confusion-diffusion architecture. With the aid of the tweak, each original image is encrypted as multiple different images using the same secret key-stream. The experimental results prove that the proposed algorithm, despite its simplicity, can withstand several types of attacks through image encryption. The research results shed new light on the data security in the transmission of digital images.

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“…Various cryptographic applications have adopted digital chaos in their designs such as image encryption [1]- [6], S-box [7], [8], image watermarking [9], [10], pseudo-random number generators [11], [12], security protocols [13], [14], and hash function [15]- [17]. There are also other chaos-based applications that have been proposed such as secure speech encryption based on chaotic map [18], image encryption [19], and chaos-based compressive sensing encryption [20].…”

Section: Introductionmentioning

confidence: 99%

A Novel Hash Function Based on a Chaotic Sponge and DNA Sequence

et al. 2021

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Many chaos-based hash functions have convoluted designs that are not based on proper design principles, complicating the verification of security claims. We address this problem by proposing a hash function based on a chaotic sponge construction and DNA sequence. DNA sequence is used to design state transition rules of a deterministic chaotic finite-state automata (DCFSA), a chaotic structure that enhances the chaoticity of digital chaotic maps. We use a DCFSA configuration consisting of four states associated with logistic maps. Analysis shows that the DCFSA configuration is efficient and has high chaotic complexity. Both DCFSA and DNA are used to design the sponge-based hash function. An input message is transformed into a DNA sequence and divided into fixed-length blocks. Each block is absorbed into a sponge structure via DNA-XOR. The sponge state is then updated with a new DNA sequence by iterating DCFSA as a compression function. Statistical evaluations indicate that the proposed hash function has near-ideal diffusion, confusion, collision resistance and distribution properties. The proposed hash can also extend the provably secure notions of the sponge construction, specifically the indifferentiability from random oracles. Furthermore, the hash function has a high level of performance as compared to other chaosbased hash functions.INDEX TERMS Chaotic map DNA data integrity finite state automata hash function security

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Visual Meaningful Encryption Scheme Using Intertwinning Logistic Map

Cited by 24 publications

References 22 publications

Visually Meaningful Image Encryption Scheme Based on DWT and Schur Decomposition

Visually Meaningful Image Encryption Scheme Based on DWT and Schur Decomposition

A Tweakable Image Encryption Algorithm Using an Improved Logistic Chaotic Map

A Novel Hash Function Based on a Chaotic Sponge and DNA Sequence

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