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On the Use of Non-Uniform FFT for Fast and Secure Wireless Communication


Mohamed Ayari


Vol. 20  No. 9  pp. 106-113


The present work sets out to present a new secure and fast image cryptosystem based on two-dimensional non-uniform fast Fourier transform (2D-NUFFT) so as to improve the security level of system data. Taking into consideration the benefits of its image compression properties, the Discrete Wavelet Transform (DWT) in a two-dimensional index is introduced and implemented in the novel cryptosystem to decrease the global time-computation and to Boost Data Security Level. The Singular Value Decomposition (SVD) as well as the randomization process, are performed with 2D-NUFFT to corroborate the efficiency and robustness of the proposed algorithms in contrast to the conventional one investigated in recent works apropos of accuracy, stability and time efficiency.


Image encryption; 2D-NUFFT; 2D-DWT; Singular Value Decomposition; Time-efficiency.