Cryptanalysis of a Chaotic Image Encryption Algorithm Based on Information Entropy

Li, Chengqing; Lin, Dongdong; Feng, Bingbing; Lü, Jinhu; Hao, Feng

doi:10.1109/access.2018.2883690

Cited by 209 publications

(92 citation statements)

References 32 publications

(83 reference statements)

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“…The specific properties of chaotic systems, such as initial state sensitive dependence, unpredictability, make them widely studied and applied in the field of information security [8]- [12]. These properties are similar to the counterparts of cryptography [9], [10], [22]. In this section, an image encryption scheme based on the proposed Chua's circuits with 19-and 21-segment piecewise-linear Chua's diodes are proposed to verify its merit for image security.…”

Section: Application In Image Secure Communicationmentioning

confidence: 97%

Generating Multi-Scroll Chua’s Attractors via Simplified Piecewise-Linear Chua’s Diode

Wang

Bao

et al. 2019

IEEE Trans. Circuits Syst. I

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144

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High implementation complexity of multi-scroll circuit is a bottleneck problem in real chaos-based communication. Especially, in multi-scroll Chua's circuit, the simplified implementation of piecewise-linear resistors with multiple segments is difficult due to their intricate irregular breakpoints and slopes. To solve the challenge, this paper presents a systematic scheme for synthesizing a Chua's diode with multi-segment piecewiselinearity, which is achieved by cascading even-numbered passive nonlinear resistors with odd-numbered ones via a negative impedance converter. The traditional voltage mode op-amps are used to implement nonlinear resistors. As no extra DC bias voltage is employed, the scheme can be implemented by much simpler circuits. The voltage-current characteristics of the obtained Chua's diode are analyzed theoretically and verified by numerical simulations. Using the Chua's diode and a secondorder active Sallen-Key high-pass filter, a new inductor-free Chua's circuit is then constructed to generate multi-scroll chaotic attractors. Different number of scrolls can be generated by changing the number of passive nonlinear resistor cells or adjusting two coupling parameters. Besides, the system can be scaled by using different power supplies, satisfying the lowvoltage low-power requirement of integrated circuit design. The circuit simulations and hardware experiments both confirmed the feasibility of the designed system.

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Section: Application In Image Secure Communicationmentioning

confidence: 97%

Generating Multi-Scroll Chua’s Attractors via Simplified Piecewise-Linear Chua’s Diode

Wang

Bao

et al. 2019

IEEE Trans. Circuits Syst. I

Self Cite

144

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show abstract

“…correlation, entropy, histogram variance, Number of Pixel Change Rate (NPCR), Unified Average Changing Intensity (UACI), key sensitivity, robustness against differential attack, sequence test, and NIST randomness test. Considering the quantitative test results of the four special schemes on the metrics, it is concluded that the metrics are far ineffective for security analysis, which are further qualitatively analyzed the inefficiency of the metrics in [1]. Other image cryptanalysis works are separately reviewed in the following three subsections.…”

Section: Survey On Image Cryptanalysis In 2018mentioning

confidence: 99%

“…Security and privacy protection of image data is an everlasting challenge in the cyberspace. Designing image encryption schemes (algorithms, techniques, methods) and further processing in the domain of the cipher-images received intensive attention from researchers in the field of security, signal processing, nonlinear science, and etc [1]. From Web of Science Core Collection, we found about 1,000 publication records published in the year 2018 by inputting "image" and "cryptograph* or encrypt*" in the field of "Topic".…”

Section: Introductionmentioning

confidence: 99%

When an attacker meets a cipher-image in 2018: A year in review

Zhang

Xie

2019

Journal of Information Security and Applications

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135

121

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This paper aims to review the encountered technical contradictions when an attacker meets the cipher-images encrypted by the image encryption schemes (algorithms) proposed in 2018 from the viewpoint of an image cryptanalyst. The most representative works among them are selected and classified according to their essential structures. Almost all image cryptanalysis works published in 2018 are surveyed due to their small number. The challenging problems on design and analysis of image encryption schemes are summarized to receive the attentions of both designers and attackers (cryptanalysts) of image encryption schemes, which may promote solving scenario-oriented image security problems with new technologies.

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“…Hence, the authors claimed that the proposed algorithm can be used as a secure and effective communication method for images. However, Li et al [19] reported some security defects of the chaos-based pseudo-random number generator used in this algorithm. Furthermore, they were able to break its one round version completely with a differential attack.…”

Section: Introductionmentioning

confidence: 99%

Cryptanalysis of a Pixel Permutation Based Image Encryption Technique Using Chaotic Map

Mokhnache¹,

Ziet²

2020

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Recently, a new image encryption algorithm was proposed by Anwar and Meghana. This encryption scheme uses the Arnold's chaotic cat map to permute the image pixels. The resulting image is then confused with both a secret image provided as part of the secret key and a secret value selected randomly from the permuted image. Using a random image as part of the secret key, gives this algorithm an infinite key space which increases its efficiency against brute-force attacks. In order to help improving the security of modern image encryption schemes, this paper presents a cryptanalysis of the proposed algorithm using a combination of chosen-plaintext and brute-force attacks. First, the infinite key space that the secret image offers is broken using a chosen-plaintext attack. Then, the permutation phase is reversed through a series of chosen-plaintext attacks too. Finally, the secret value chosen randomly from the permuted image is easily brute-forced due to its reduced number of possible values. By applying the above method, it is possible to restore the plain version of any image that was encrypted using the former encryption algorithm. Thus, relying on this algorithm to encrypt real sensitive data is not secure.

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Cryptanalysis of a Chaotic Image Encryption Algorithm Based on Information Entropy

Cited by 209 publications

References 32 publications

Generating Multi-Scroll Chua’s Attractors via Simplified Piecewise-Linear Chua’s Diode

Generating Multi-Scroll Chua’s Attractors via Simplified Piecewise-Linear Chua’s Diode

When an attacker meets a cipher-image in 2018: A year in review

Cryptanalysis of a Pixel Permutation Based Image Encryption Technique Using Chaotic Map

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