Asymmetric Cryptosystem Using Structured Phase Masks in Discrete Cosine and Fractional Fourier Transforms

2020 ◽  
pp. 27-39
Author(s):  
Shivani Yadav ◽  
Hukum Singh
Keyword(s):  
Fourier Transforms ◽  
Fractional Fourier Transforms ◽  
Asymmetric Cryptosystem

scholarly journals Self Fourier functions and fractional Fourier transforms

1994 ◽  
Vol 105 (1-2) ◽  
pp. 36-38 ◽  
Author(s):  
David Mendlovic ◽  
Haldun M. Ozaktas ◽  
Adolf W. Lohmann
Keyword(s):  
Fourier Transforms ◽  
Fractional Fourier Transforms

scholarly journals Continuous vs. discrete fractional Fourier transforms

1999 ◽  
Vol 107 (1) ◽  
pp. 73-95 ◽  
Author(s):  
Natig M. Atakishiyev ◽  
Luis Edgar Vicent ◽  
Kurt Bernardo Wolf
Keyword(s):  
Fourier Transforms ◽  
Fractional Fourier Transforms

Analysis of Structure Parameters for Anamorphic Fractional Fourier Transforms System

2010 ◽  
Vol 37 (7) ◽  
pp. 1717-1720
Author(s):  
张军勇 Zhang Junyong ◽  
卢兴强 Lu Xingqiang ◽  
林尊琪 Lin Zunqi
Keyword(s):  
Fourier Transforms ◽  
Structure Parameters ◽  
Fractional Fourier Transforms

scholarly journals The Weighted Fractional Fourier Transform and Its Application in Image Encryption

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Tieyu Zhao ◽  
Qiwen Ran
Keyword(s):  
Fourier Transform ◽  
Theoretical Analysis ◽  
Image Encryption ◽  
Fourier Transforms ◽  
Fractional Fourier Transform ◽  
Rapid Development ◽  
Matrix Group ◽  
Future Developments ◽  
Security And Reliability ◽  
Fractional Fourier Transforms

With the rapid development of information, the requirements for the security and reliability of cryptosystems have become increasingly difficult to meet, which promotes the development of the theory of a class of fractional Fourier transforms. In this paper, we present a review of the development and applications of the weighted fractional Fourier transform (WFRFT) in image encryption. Relationships between the algorithms are established using the generalized permutation matrix group in theoretical analysis. In addition, the advantages and potential weaknesses of each algorithm in image encryption are analyzed and discussed. It is expected that this review will provide a clear picture of the current developments of the WFRFT in image encryption and may shed some light on future developments.

Analysis and comparison of discrete fractional fourier transforms

2019 ◽  
Vol 160 ◽  
pp. 284-298 ◽  
Author(s):  
Xinhua Su ◽  
Ran Tao ◽  
Xuejing Kang
Keyword(s):  
Fourier Transforms ◽  
Fractional Fourier Transforms
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