chaos generator

Hardware stream cipher with controllable chaos generator for colour image encryption

1 min read · Sun, Apr 27 2014

chaos generator Circuits colour image encryption

Mohamed L. Barakat, et al., "Hardware stream cipher with controllable chaos generator for colour image encryption" IET Image Processing 8 (1), 2014, 33. 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