Image Encryption Based on Block-wise Fractional Fourier Transform with Wavelet Transform

Panna, Bhaskar; Kumar, Sumit; Jha, Rajib Kumar

doi:10.1080/02564602.2018.1533892

Cited by 15 publications

(6 citation statements)

References 26 publications

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“…To reduce time complexity, images can be encrypted using chaos and transformation techniques such as Discrete Cosine transform (DCT) and DWT [19][20][21][22][23][24][25][26][27][28]. In the past few years, chaos has played a vital role in image encryption due to its some unique features such as sensitivity in initial conditions, unpredictability, pseudo randomness, ergodicity, and non-deterministic behavior [29][30][31][32][33][34].…”

Section: Plos Onementioning

confidence: 99%

A lightweight noise-tolerant encryption scheme for secure communication: An unmanned aerial vehicle application

et al. 2022

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In the modern era, researchers have focused a great deal of effort on multimedia security and fast processing to address computational processing time difficulties. Due to limited battery capacity and storage, Unmanned Aerial Vehicles (UAVs) must use energy-efficient processing. In order to overcome the vulnerability of time inefficiency and provide an appropriate degree of security for digital images, this paper proposes a new encryption system based on the bit-plane extraction method, chaos theory, and Discrete Wavelet Transform (DWT). Using confusion and diffusion processes, chaos theory is used to modify image pixels. In contrast, bit-plane extraction and DWT are employed to reduce the processing time required for encryption. Multiple cyberattack analysis, including noise and cropping attacks, are performed by adding random noise to the ciphertext image in order to determine the proposed encryption scheme’s resistance to such attacks. In addition, a variety of statistical security analyses, including entropy, contrast, energy, correlation, peak signal-to-noise ratio (PSNR), and mean square error (MSE), are performed to evaluate the security of the proposed encryption system. Moreover, a comparison is made between the statistical security analysis of the proposed encryption scheme and the existing work to demonstrate that the suggested encryption scheme is better to the existing ones.

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Section: Plos Onementioning

confidence: 99%

A lightweight noise-tolerant encryption scheme for secure communication: An unmanned aerial vehicle application

et al. 2022

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“…As the Fourier coefficients of the transformed function represent the contribution of each sinus and cosine function at each frequency, the signal can then be evaluated for its frequency content. An inverse Fourier transform converts data from the frequency domain into the time domain, exactly as you might expect [25,26].…”

Section: Fourier Transform and Wavelet Transformmentioning

confidence: 99%

Encryption System for Hiding Information Based on Internet of Things

Naman

Hussien

Al-Dabag

et al. 2021

Int. J. Interact. Mob. Technol.

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<p class="0abstract">One of the unexpected intelligence tactics known in World War II was to conceal the data in images that were reduced to the size of a point that was used in every text and transported in front of the enemy's eyes. In the new age, and after the expansion of Internet science and the use of the Internet worldwide, we will establish a security feature of the IOT service that will work more reliably and more effectively to deal with the Internet of Things and ensure the work of the services that the customer interacts with. A secret-key stenographic scheme that embeds four gray-scale secret size (128*128) pixel images into a size (512*512) pixel cover image in this work. Wavelet transform is the method used in this project to analyze the cover into its frequency components. In this work, combinations of steganography and cryptography were made to increase the level of safety and make the device more difficult for attackers to beat. The resulting stego-image that will be transmitted did not raise any suspicion by both objective and subjective evaluation, so the primary objective of Steganography is achieved. The proposed system was designed by using (MATLAB R2018b) and running on a Pentium-4 computer. The Internet of Things works with the encryption system for data in a synchronized manner with the technological development, and in order to maintain the stability of any Internet of things service, whether it is information signal services, visual or audio data, a remote control system, or data storage in the Internet cloud, we must focus on data preservation from internet pirates and internet system hackers. The picture Figure<strong> </strong>4 below shows the method of encryption and dealing with the Internet of things system..</p>

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“…Images play a very crucial role in terms of confidentiality and secrecy [1][2][3][4][5][6][7]. The Internet is an open and unsecured network.…”

Section: Introductionmentioning

confidence: 99%

Image encryption based on fractional discrete cosine transform and DWT with interplane arrangements in dost domain

Sundaram

Panna

Jha

et al. 2022

IET Image Processing

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In this paper, a novel color image encryption scheme based on fractional discrete cosine transform (FrDCT) and discrete wavelet transform (DWT) with interplane arrangements in the discrete orthonormal Stockwell transform (DOST) domain is presented. Color images are encrypted using the keys of FrDCT and coefficients of interplane arrangement of DWT sub-bands. These keys are applied on three independent planes, that is, R, G, and B. To ensure the correct decryption of the encrypted image, every key need to be clearly understood in the correct sequence and its exact values. FrDCT has the advantageous feature of storing real-valued coefficients, and the energy of the image can be represented with very few coefficients. Therefore, transmitting and storing the encrypted image becomes easy. FrDCT may be considered a real-valued cosine version of fractional Fourier transform (FrFT), which is used successfully for storage and transmission due to its property of compacting energy distribution. Furthermore, for more robustness, interplane arrangements are explored. The concept of interplane arrangements has not been substantially reported in the existing literature. The comparison of the technique with other similar encryption techniques available in the literature has been carried out by performing different experiments to examine the efficacy of the proposed method. It is found that the proposed method outperforms other existing techniques.

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Image Encryption Based on Block-wise Fractional Fourier Transform with Wavelet Transform

Cited by 15 publications

References 26 publications

A lightweight noise-tolerant encryption scheme for secure communication: An unmanned aerial vehicle application

A lightweight noise-tolerant encryption scheme for secure communication: An unmanned aerial vehicle application

Encryption System for Hiding Information Based on Internet of Things

Image encryption based on fractional discrete cosine transform and DWT with interplane arrangements in dost domain

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