A color image encryption technique using exclusive-OR with DNA complementary rules based on chaos theory and SHA-2

et al. 2020

Entropy

Bit-level and pixel-level methods are two classifications for image encryption, which describe the smallest processing elements manipulated in diffusion and permutation respectively. Most pixel-level permutation methods merely alter the positions of pixels, resulting in similar histograms for the original and permuted images. Bit-level permutation methods, however, have the ability to change the histogram of the image, but are usually not preferred due to their time-consuming nature, which is owed to bit-level computation, unlike that of other permutation techniques. In this paper, we introduce a new image encryption algorithm which uses binary bit-plane scrambling and an SPD diffusion technique for the bit-planes of a plain image, based on a card game trick. Integer values of the hexadecimal key SHA-512 are also used, along with the adaptive block-based modular addition of pixels to encrypt the images. To prove the first-rate encryption performance of our proposed algorithm, security analyses are provided in this paper. Simulations and other results confirmed the robustness of the proposed image encryption algorithm against many well-known attacks; in particular, brute-force attacks, known/chosen plain text attacks, occlusion attacks, differential attacks, and gray value difference attacks, among others.

Section: Robustness Against Occlusion Attackmentioning

confidence: 84%

Section: Gray Value Degree (Gvd) Analysismentioning

confidence: 87%

Section: Encryption Qualitymentioning

confidence: 99%

Section: Encryption Qualitymentioning

confidence: 99%

See 2 more Smart Citations

Fast and Efficient Image Encryption Algorithm Based on Modular Addition and SPD

Butt

et al. 2020

Entropy

“…A new encryption algorithm for the color image was proposed in [29] that employs the hash-256 function to amend the control parameters and initial values of the chaotic system. The red, green and the blue channels of the image arranged into vector array form of one-dimensional.…”

Section: Introductionmentioning

confidence: 99%

3C3R, an Image Encryption Algorithm Based on BBI, 2D-CA, and SM-DNA

Han

Mudassir

et al. 2019

Entropy

Color image encryption has enticed a lot of attention in recent years. Many authors proposed a chaotic system-based encryption algorithms for that purpose. However, due to the shortcomings of the low dimensional chaotic systems, similar rule structure for RGB channels, and the small keyspace, many of those were cryptanalyzed by chosen-plaintext or other well-known attacks. A Security vulnerability exists because of the same method being applied over the RGB channels. This paper aims to introduce a new three-channel three rules (3C3R) image encryption algorithm along with two novel mathematical models for DNA rule generator and bit inversion. A different rule structure was applied in the different RGB-channels. In the R-channel, a novel Block-based Bit Inversion (BBI) is introduced, in the G-channel Von-Neumann (VN) and Rotated Von-Neumann (RVN)- based 2D-cellular structure is applied. In the B-channel, a novel bidirectional State Machine-based DNA rule generator (SM-DNA) is introduced. Simulations and results show that the proposed 3C3R encryption algorithm is robust against all well-known attacks particularly for the known-plaintext attacks, statistical attacks, brute-force attacks, differential attacks, and occlusion attacks, etc. Also, unlike earlier encryption algorithms, the 3C3R has no security vulnerability.

Security of multimedia communication with game trick based fast, efficient, and robust color‐/gray‐scale image encryption algorithm

Trans Emerging Tel Tech

Han

Qian

et al. 2020

Freshly, an innumerable chaotic system based complex and more time‐consuming image encryption algorithms have been proposed. The majority of those have scrambling and diffusion like two phases or rounds before performing the actual encryption, which leads toward extra time consumption. So unlike those, this article presents a novel image encryption algorithm that is based on game trick. The proposed novel method is DNA based and it can accomplish dual function with one round, that is, scrambling for the bit planes and diffusion for the pixels, So we called it as DNA‐SPD. First of all, a random matrix equivalent to the size of the original image is generated through a python random array generator and seed value of the 512‐bit hexadecimal key of the original image. Second, it performs the pixel adaptive additions with MA between pixels of a plain image, random matrix, the integer value of the hash key entity, and the decimal number (DN). Third, it extracts each channel from the color image and convert it into the binary bit planes, then transformed it into the DNA bit planes through particular DNA rules. Finally, a universal DNA rule utilized to get back encrypted pixels. Various security analysis and comparison of projected results show that the proposed novel encryption method gives better results in a lesser amount of time. The proposed algorithm is robust against the well‐known and effective attacks, that is, known/chosen plaintext attacks, differential attacks, and the statistical attacks. Therefore, the proposed algorithm is more secure and reliable for the security of image communication.