Abstract
Methods of image encryption based on fractional Fourier transform have an incipient flaw in security. We show that the schemes have the deficiency that one group of encryption keys has many groups of keys to decrypt the encrypted image correctly for several reasons. In some schemes, many factors result in the deficiencies, such as the encryption scheme based on multiple-parameter fractional Fourier transform [Opt. Lett. 33, 581 (2008) ]. A modified method is proposed to avoid all the deficiencies. Security and reliability are greatly improved without increasing the complexity of the encryption process. © 2009 Optical Society of America
© 2009 Optical Society of America
Full Article | PDF ArticleCorrections
Qiwen Ran, Haiying Zhang, Jin Zhang, Liying Tan, and Jing Ma, "Deficiencies of the cryptography based on multiple-parameter fractional Fourier transform: erratum," Opt. Lett. 34, 2945-2945 (2009)https://opg.optica.org/ol/abstract.cfm?uri=ol-34-19-2945
More Like This
Qiwen Ran, Haiying Zhang, Jin Zhang, Liying Tan, and Jing Ma
Opt. Lett. 34(19) 2945-2945 (2009)
Ran Tao, Jun Lang, and Yue Wang
Opt. Lett. 33(6) 581-583 (2008)
Jun Lang
Opt. Express 20(3) 2386-2398 (2012)