Hardware stream cipher with controllable chaos generator for colour image encryption

Mohamed L. Barakat, Abhinav S. Mansingka, Ahmed Gomaa Radwan, Khaled N. Salama

Research output: Contribution to journalArticlepeer-review

58 Scopus citations


This study presents hardware realisation of chaos-based stream cipher utilised for image encryption applications. A third-order chaotic system with signum non-linearity is implemented and a new post processing technique is proposed to eliminate the bias from the original chaotic sequence. The proposed stream cipher utilises the processed chaotic output to mask and diffuse input pixels through several stages of XORing and bit permutations. The performance of the cipher is tested with several input images and compared with previously reported systems showing superior security and higher hardware efficiency. The system is experimentally verified on XilinxVirtex 4 field programmable gate array (FPGA) achieving small area utilisation and a throughput of 3.62 Gb/s. © The Institution of Engineering and Technology 2013.
Original languageEnglish (US)
Pages (from-to)33-43
Number of pages11
JournalIET Image Processing
Issue number1
StatePublished - Jan 1 2014

ASJC Scopus subject areas

  • Signal Processing
  • Software
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering


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