Comments on the security of “Diffusion–substitution based gray image encryption” scheme

Alireza Jolfaei, Xin-Wen Wu, Vallipuram Muthukkumarasamy

Research output: Contribution to journalComment/debate

19 Citations (Scopus)


In this paper, it is shown that the recently proposed image encryption scheme by Pareek et al. (2013) [1] is not secure and the secret key is deduced by a chosen-ciphertext attack. Security flaws of the encryption scheme are discussed and solutions are proposed.

Original languageEnglish
Pages (from-to)34-36
Number of pages3
JournalDigital Signal Processing
Publication statusPublished - Sept 2014
Externally publishedYes


  • Chosen-ciphertext attack
  • Image encryption
  • Permutation
  • Substitution


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