scholarly journals Combined Image Encryption And Steganography Algorithm In The Spatial Domain

2018 ◽  
Author(s):  
Aya H. S. Abdelgader ◽  
Raneem A. Aboughalia ◽  
Osama A. S. Alkishriwo
Keyword(s):  
Image Encryption ◽  
Spatial Domain

scholarly journals Image encryption under spatial domain based on modify 2D LSCM chaotic map via dynamic substitution-permutation network

2021 ◽  
Vol 11 (4) ◽  
pp. 3070
Author(s):  
Rana Saad Mohammed ◽  
Khalid Kadhim Jabbar ◽  
Hussien Abid Hilal
Keyword(s):  
Image Encryption ◽  
Diffusion Processes ◽  
Color Image ◽  
Chaotic Map ◽  
Spatial Domain ◽  
Key Space ◽  
Main Color ◽  
Differential Attacks ◽  
And Diffusion

Image encryption has become an important application aspect of information security. Most attempts are focused on increasing the security aspect, the quality of the resulting image, and the time consumed. On the other hand, dealing with the color image under the spatial domain in this filed is considered as another challenge added to the proposed method that make it sensitivity and difficulty. The proposed method aims to encode a color image by dealing with the main color components of the red (R), green (G), and blue (B) components of a color image to strengthen the dependence of each component by modifying a two dimensional logistic- sine coupling map (2D- LSCM). This is to satisfy the statistical features and reduce time-consumption, and benefit from a mixing step of the second of advanced encryption standard (AES) candidates (serpent block cipher) and modified it to achieve in addition of confusion and diffusion processes. The experimental results showed that our proposed method had the ability to resist against statistical attacks and differential attacks. It also had a uniform histogram, a large key space, complex and faster, closer Shannon entropy to 8, and low correlation values between two adjacent pixels compared with other methods.

scholarly journals Image compression and encryption based on wavelet transform and chaos

2019 ◽  
Vol 43 (2) ◽  
pp. 258-263
Author(s):  
H. Ga ◽  
W. Zeng
Keyword(s):  
Wavelet Transform ◽  
Image Compression ◽  
Frequency Domain ◽  
Image Encryption ◽  
Rapid Development ◽  
Spatial Domain ◽  
Encryption Algorithm ◽  
Chaotic Mapping ◽  
Image Compression And Encryption ◽  
Image Encryption Algorithm

With the rapid development of network technology, more and more digital images are transmitted on the network, and gradually become one important means for people to access the information. The security problem of the image information data increasingly highlights and has become one problem to be attended. The current image encryption algorithm basically focuses on the simple encryption in the frequency domain or airspace domain, and related methods also have some shortcomings. Based on the characteristics of wavelet transform, this paper puts forward the image compression and encryption based on the wavelet transform and chaos by combining the advantages of chaotic mapping. This method introduces the chaos and wavelet transform into the digital image encryption algorithm, and transforms the image from the spatial domain to the frequency domain of wavelet transform, and adds the hybrid noise to the high frequency part of the wavelet transform, thus achieving the purpose of the image degradation and improving the encryption security by combining the encryption approaches in the spatial domain and frequency domain based on the chaotic sequence and the excellent characteristics of wavelet transform. Testing experiments show that such algorithm reduces the memory consumption and implements the complexity, not only can decrease the key spending and compress the time spending, but also can improve the quality of decoded and reconstructed image, thus showing good encryption features with better encryption effect.

Quantum Image Encryption Based on Iterative Framework of Frequency-Spatial Domain Transforms

2017 ◽  
Vol 56 (10) ◽  
pp. 3029-3049 ◽  
Author(s):  
Han Wang ◽  
Jian Wang ◽  
Ya-Cong Geng ◽  
Yan Song ◽  
Ji-Qiang Liu
Keyword(s):  
Image Encryption ◽  
Spatial Domain ◽  
Quantum Image ◽  
Quantum Image Encryption ◽  
Iterative Framework

Implementation Color-Images Cryptography Using RSA Algorithm

2017 ◽  
Vol 7 (11) ◽  
pp. 181
Author(s):  
Ali Saleh Al Najjar
Keyword(s):  
Information Security ◽  
Image Encryption ◽  
Color Images ◽  
Public Key ◽  
Open Channels ◽  
Image Security ◽  
Rsa Algorithm ◽  
The Media ◽  
Encrypted Images ◽  
Difficult Issue

Absolute protection is a difficult issue to maintain the confidentiality of images through their transmission over open channels such as internet or networks and is a major concern in the media, so image Cryptography becomes an area of attraction and interest of research in the field of information security. The paper will offer proposed system that provides a special kinds of image Encryption image security, Cryptography using RSA algorithm for encrypted images by HEX function to extract HEX Code and using RSA public key algorithm, to generate cipher image text. This approach provides high security and it will be suitable for secured transmission of images over the networks or Internet.

Nature Inspired and Transform Based Image Encryption Techniques: A Comparative Study

2020 ◽  
Vol 5 (5) ◽  
pp. 1075-1092
Author(s):  
Bhagyashri Pandurangi R ◽  
Chaitra Bhat ◽  
Meenakshi R. Patil
Keyword(s):  
Comparative Study ◽  
Image Encryption

Image Encryption Based on Partitioning and Rearranged Pixels Position

2017 ◽  
Author(s):  
Jamila H. Al-A’meri ◽  
Salah T. Allawi ◽  
May M. Abbas
Keyword(s):  
Image Encryption
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