Type
ArticleKAUST Department
Electrical Engineering ProgramDate
2014-12-01Permanent link to this record
http://hdl.handle.net/10754/563907
Metadata
Show full item recordAbstract
This study introduces a novel image encryption system based on diffusion and confusion processes in which the image information is hidden inside the complex details of fractal images. A simplified encryption technique is, first, presented using a single-fractal image and statistical analysis is performed. A general encryption system utilising multiple fractal images is, then, introduced to improve the performance and increase the encryption key up to hundreds of bits. This improvement is achieved through several parameters: feedback delay, multiplexing and independent horizontal or vertical shifts. The effect of each parameter is studied separately and, then, they are combined to illustrate their influence on the encryption quality. The encryption quality is evaluated using different analysis techniques such as correlation coefficients, differential attack measures, histogram distributions, key sensitivity analysis and the National Institute of Standards and Technology (NIST) statistical test suite. The obtained results show great potential compared to other techniques.Citation
Abd-El-Hafiz, S. K., Radwan, A. G., Barakat, M. L., & Abdel Haleem, S. H. (2014). A fractal-based image encryption system. IET Image Processing, 8(12), 742–752. doi:10.1049/iet-ipr.2013.0570Sponsors
This research was supported financially by the Science and Technology Development Fund (STDF), Egypt, Grant no. 4276.Journal
IET Image Processingae974a485f413a2113503eed53cd6c53
10.1049/iet-ipr.2013.0570