Vol. 47, Issue 1, pp. 131-139

  1. Archive
  2. Optica Applicata Vol. 47, Issue 1, pp. 131-139 (2017)
Vol. 47 Issue 1 pp. 131-139

A known-plaintext attack on iterative random phase encoding in fractional Fourier domains

Fucheng Yin, Qi He, Zhengjun Liu

Keywords

image encryption, phase encoding, known-plaintext attack

Abstract

Known-plaintext attack is considered for decrypting the image generated by iterative random phase encoding in fractional Fourier transform domains. The double random phase encoding in Fourier domains is introduced to design the known-plaintext attack procedure. The decryption test is explored without both fractional order and these random phase masks. Some numerical simulations are made to demonstrate the validity of the known-plaintext attack.

Vol. 47
Issue 1
pp. 131-139

1.59 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology