Implementation of Block-Based Symmetric Algorithms for Real Image Encryption

2019 ◽  
pp. 127-140
Author(s):  
Ritu Shaktawat ◽  
Rajdeep Singh Shaktawat ◽  
Isha Suwalka ◽  
N. Lakshmi
Keyword(s):  
Image Encryption ◽  
Real Image ◽  
Block Based

Block-Based Arnold Chaotic Map for Image Encryption

2019 ◽  
Author(s):  
Eko Hari Rachmawanto ◽  
Ignatius Moses Setiadi De Rosal ◽  
Christy Atika Sari ◽  
Heru Agus Santoso ◽  
Fauzi Adi Rafrastara ◽  
...  
Keyword(s):  
Image Encryption ◽  
Chaotic Map ◽  
Block Based

scholarly journals An Ethical Approach of Block Based Image Encryption Using Chaotic Map

2015 ◽  
Vol 9 (9) ◽  
pp. 105-122 ◽  
Author(s):  
Kamlesh Gupta ◽  
Ranu Gupta ◽  
Rohit Agrawal ◽  
Saba Khan
Keyword(s):  
Image Encryption ◽  
Chaotic Map ◽  
Ethical Approach ◽  
Block Based

scholarly journals Magic cube puzzle approach for image encryption

2020 ◽  
Vol 6 (3) ◽  
pp. 290
Author(s):  
Achmad Fanany Onnilita Gaffar ◽  
Rheo Malani ◽  
Arief Bramanto Wicaksono Putra
Keyword(s):  
Image Encryption ◽  
Performance Metrics ◽  
Random Permutation ◽  
Data Encryption ◽  
Large Space ◽  
Encrypted Image ◽  
Plain Image ◽  
Block Based ◽  
Key Length ◽  
Magic Cube

In principle, the image encryption algorithm produces an encrypted image. The encrypted image is composed of arbitrary patterns that do not provide any clues about the plain image and its cipher key. Ideally, the encrypted image is entirely independent of its plain image. Many functions can be used to achieve this goal. Based on the functions used, image encryption techniques are categorized into: (1) Block-based; (2) Chaotic-based; (3) Transformation-based; (4) Conventional-based; and (5) Miscellaneous based. This study proposes a magic cube puzzle approach to encrypt an 8-bit grayscale image. This approach transforms a plain image into a particular size magic cube puzzle, which is consists of a set of blocks. The magic cube puzzle algorithm will diffuse the pixels of the plain image as in a Rubik’s Cube game, by rotating each block in a particular direction called the transposition orientation. The block’s transposition orientation is used as the key seed, while the generation of the cipher key uses a random permutation of the key seed with a certain key length. Several performance metrics have been used to assess the goals, and the results have been compared to several standard encryption methods. This study showed that the proposed method was better than the other methods, except for entropy metrics. For further studies, modification of the method will be carried out in such a way as to be able to increase its entropy value to very close to 8 and its application to true color images. In essence, the magic cube puzzle approach has a large space for pixel diffusion that is possibly supposed to get bigger as a series of data has transformed into several magic cubes. Then, each magic cube has transposed with a different technique. This proposed approach is expected to add to a wealth of knowledge in the field of data encryption.

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

Entropy ◽  
2020 ◽  
Vol 22 (1) ◽  
pp. 112 ◽  
Author(s):  
Khushbu Khalid Butt ◽  
Guohui Li ◽  
Sajid Khan ◽  
Sohaib Manzoor
Keyword(s):  
Image Encryption ◽  
Encryption Algorithm ◽  
Plain Text ◽  
Diffusion Technique ◽  
Permutation Methods ◽  
Plain Image ◽  
Block Based ◽  
Bit Planes ◽  
Differential Attacks ◽  
Image Encryption Algorithm

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.

Image encryption scheme based on block‐based confusion and multiple levels of diffusion

2016 ◽  
Vol 10 (6) ◽  
pp. 593-602 ◽  
Author(s):  
Brindha Murugan ◽  
Ammasai Gounden Nanjappa Gounder
Keyword(s):  
Image Encryption ◽  
Encryption Scheme ◽  
Multiple Levels ◽  
Block Based

scholarly journals Block-Based Optical Color Image Encryption Based on Double Random Phase Encoding

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 4184-4194 ◽  
Author(s):  
Osama S. Faragallah ◽  
Mohammed A. Alzain ◽  
Hala S. El-Sayed ◽  
Jehad F. Al-Amri ◽  
Walid El-Shafai ◽  
...  
Keyword(s):  
Image Encryption ◽  
Color Image ◽  
Random Phase ◽  
Color Image Encryption ◽  
Phase Encoding ◽  
Double Random Phase Encoding ◽  
Random Phase Encoding ◽  
Block Based ◽  
Optical Color
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