Double image encryption method using the Arnold transform in the fractional Hartley domain

2013 ◽  
Author(s):  
Juan M. Vilardy ◽  
César O. Torres ◽  
Carlos J. Jimenez
Keyword(s):  
Image Encryption ◽  
Arnold Transform ◽  
Double Image ◽  
Encryption Method

Video Image Encryption Technique Using Maximum-Length Cellular Automata and Arnold’s Cat Map

2015 ◽  
Vol 764-765 ◽  
pp. 992-996
Author(s):  
Arum Sulgi Cho ◽  
Xiao Wei Li ◽  
Sung Jin Cho ◽  
Seok Tae Kim
Keyword(s):  
Cellular Automata ◽  
Image Encryption ◽  
Video Image ◽  
Maximum Length ◽  
Experimental Results ◽  
Arnold Transform ◽  
High Security ◽  
Xor Operation ◽  
Arnold’S Cat Map ◽  
Encryption Method

In this paper, we propose a video image encryption approach by using maximum length cellular automata (MLCA) methods. First, the plane images of video of the encryption method are obtained by dividing frame units. Then the XOR operation and Arnold transform are applied to each of RGB plane images. Lastly, the encryption image is encrypted by the basis image of MLCA. To demonstrate the usefulness of the proposed method, we carry out preliminary experiments and present the experimental results. The experimental results show that the proposed method provides high security.

Double image encryption by using Arnold transform and discrete fractional angular transform

2012 ◽  
Vol 50 (2) ◽  
pp. 248-255 ◽  
Author(s):  
Zhengjun Liu ◽  
Min Gong ◽  
Yongkang Dou ◽  
Feng Liu ◽  
Shen Lin ◽  
...  
Keyword(s):  
Image Encryption ◽  
Arnold Transform ◽  
Double Image

scholarly journals A Multi-User Encryption and Authentication System Based on Joint Transform Correlation

Entropy ◽  
2019 ◽  
Vol 21 (9) ◽  
pp. 850
Author(s):  
Zhao ◽  
Chi
Keyword(s):  
Image Encryption ◽  
Secure Communication ◽  
Theoretical Foundation ◽  
Double Image ◽  
Plain Text ◽  
Authentication System ◽  
Joint Transform Correlation ◽  
Encryption And Authentication ◽  
Encryption Method ◽  
Optical Image Encryption

Optical image encryption technology based on joint transform correlation (JTC) has attracted increasing attention from researchers. We propose a multi-user secure communication system based on the special properties of JTC. Multiple users utilize their own fingerprints to encrypt the plain-text in the encryption process, and each user must be first authenticated at the beginning of the decryption process. Only users with legitimate identities can perform the decryption process, whereas unauthorized users with false identities cannot, so the security of the system is greatly improved. Furthermore, we propose a multi-user double-image encryption method, which can better meet the needs of different security environments. Considering the possibility of overlapping images at the output end, we prove that a JTC-based image encryption system can avoid overlapping images at the output when the distance between the input images is 3W (W is the side length of a square image), which provides a theoretical foundation for further research. Finally, a numerical simulation demonstrates the effectiveness and feasibility of the proposed idea.

Image encryption based on Fractional wavelet transform, Arnold transform with the double random phases in HSV color domain

2020 ◽  
Vol 13 ◽  
Author(s):  
Aarushi Shrivastava ◽  
Janki Ballabh Sharma ◽  
Sunil Dutt Purohit
Keyword(s):  
Wavelet Transform ◽  
Image Encryption ◽  
Fractional Fourier Transform ◽  
Color Image ◽  
Random Phase ◽  
Arnold Transform ◽  
Time Frequency ◽  
Key Space ◽  
Secret Keys ◽  
Fractional Wavelet Transform

Objective: In the recent multimedia technology images play an integral role in communication. Here in this paper, we propose a new color image encryption method using FWT (Fractional Wavelet transform), double random phases and Arnold transform in HSV color domain. Methods: Firstly the image is changed into the HSV domain and the encoding is done using the FWT which is the combination of the fractional Fourier transform with wavelet transform and the two random phase masks are used in the double random phase encoding. In this one inverse DWT is taken at the end in order to obtain the encrypted image. To scramble the matrices the Arnold transform is used with different iterative values. The fractional order of FRFT, the wavelet family and the iterative numbers of Arnold transform are used as various secret keys in order to enhance the level of security of the proposed method. Results: The performance of the scheme is analyzed through its PSNR and SSIM values, key space, entropy, statistical analysis which demonstrates its effectiveness and feasibility of the proposed technique. Stimulation result verifies its robustness in comparison to nearby schemes. Conclusion: This method develops the better security, enlarged and sensitive key space with improved PSNR and SSIM. FWT reflecting time frequency information adds on to its flexibility with additional variables and making it more suitable for secure transmission.

Double-image encryption based on iterative gyrator transform

2008 ◽  
Vol 281 (23) ◽  
pp. 5745-5749 ◽  
Author(s):  
Huijuan Li ◽  
Yurong Wang
Keyword(s):  
Image Encryption ◽  
Double Image ◽  
Gyrator Transform

scholarly journals Image Encryption Method based on Hybrid Fractal-Chaos Algorithm

2017 ◽  
Vol 10 (6) ◽  
pp. 221-229 ◽  
Author(s):  
Sandhya Halagowda ◽  
◽  
Sudha Lakshminarayana ◽  
Keyword(s):  
Image Encryption ◽  
Chaos Algorithm ◽  
Encryption Method

scholarly journals Color image encryption method based on computer generated hologram and θ modulation

2019 ◽  
Vol 68 (11) ◽  
pp. 110502
Author(s):  
Si-Xing Xi ◽  
Na-Na Yu ◽  
Xiao-Lei Wang ◽  
Qiao-Fen Zhu ◽  
Zhao Dong ◽  
...  
Keyword(s):  
Image Encryption ◽  
Color Image ◽  
Color Image Encryption ◽  
Computer Generated Hologram ◽  
Encryption Method
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