A Simple, Secure, and Time-Efficient Bit-Plane Operated Bit-Level Image Encryption Scheme Using 1-D Chaotic Maps

Author(s):  
K. Abhimanyu Kumar Patro ◽  
Bibhudendra Acharya
2018 ◽  
Vol 78 (8) ◽  
pp. 10373-10400 ◽  
Author(s):  
Sukalyan Som ◽  
Abhijit Mitra ◽  
Sarbani Palit ◽  
B. B. Chaudhuri

Entropy ◽  
2018 ◽  
Vol 20 (11) ◽  
pp. 843 ◽  
Author(s):  
Congxu Zhu ◽  
Guojun Wang ◽  
Kehui Sun

This paper presents an improved cryptanalysis of a chaos-based image encryption scheme, which integrated permutation, diffusion, and linear transformation process. It was found that the equivalent key streams and all the unknown parameters of the cryptosystem can be recovered by our chosen-plaintext attack algorithm. Both a theoretical analysis and an experimental validation are given in detail. Based on the analysis of the defects in the original cryptosystem, an improved color image encryption scheme was further developed. By using an image content–related approach in generating diffusion arrays and the process of interweaving diffusion and confusion, the security of the cryptosystem was enhanced. The experimental results and security analysis demonstrate the security superiority of the improved cryptosystem.


Author(s):  
Ahmad Pourjabbar Kari ◽  
Ahmad Habibizad Navin ◽  
Amir Massoud Bidgoli ◽  
Mirkamal Mirnia

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