Fresnel domain nonlinear optical image encryption scheme based on Gerchberg–Saxton phase-retrieval algorithm

2014 ◽  
Vol 53 (3) ◽  
pp. 418 ◽  
Author(s):  
Sudheesh K. Rajput ◽  
Naveen K. Nishchal
2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Tieyu Zhao ◽  
Qiwen Ran ◽  
Lin Yuan ◽  
Yingying Chi ◽  
Jing Ma

The optical image encryption has attracted more and more researchers’ attention, and the various encryption schemes have been proposed. In existing optical cryptosystem, the phase functions or images are usually used as the encryption keys, and it is difficult that the traditional public-key algorithm (such as RSA, ECC, etc.) is used to complete large numerical key transfer. In this paper, we propose a key distribution scheme based on the phase retrieval algorithm and the RSA public-key algorithm, which solves the problem for the key distribution in optical image encryption system. Furthermore, we also propose a novel image encryption system based on the key distribution principle. In the system, the different keys can be used in every encryption process, which greatly improves the security of the system.


2015 ◽  
Vol 63 (8) ◽  
pp. 771-776 ◽  
Author(s):  
Tieyu Zhao ◽  
Qiwen Ran ◽  
Lin Yuan ◽  
Yingying Chi ◽  
Jing Ma

2015 ◽  
Vol 35 (8) ◽  
pp. 0807001 ◽  
Author(s):  
侯俊峰 Hou Junfeng ◽  
黄素娟 Huang Sujuan ◽  
司徒国海 Situ Guohai

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