On the security of image encryption method

Jinn Ke Jan, Yuh Min Tseng

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


Alexopoulos, Bourbakis and Ioannou proposed two cryptographic schemes for encrypting 2-D gray scale images by using a large family of fractals respectively. Their schemes are based on a transposition of the image elements. However, their schemes will be vulnerable in case that they employ the unique key in their proposed system. In this paper, we show that their transposition encryptions can easily be broken with a pair of plain-image and cipher-sequential data. Meanwhile, we offer some suggestions for 2-D image transposition encryption.

Original languageEnglish
Pages (from-to)261-265
Number of pages5
JournalInformation Processing Letters
Issue number5
Publication statusPublished - 1996 Dec 9

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Signal Processing
  • Information Systems
  • Computer Science Applications

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