Hasan Abdulameer, M. 2018. Image Encryption Using Columnar Transportation Technique and Bits Reversing. Journal of Al-Qadisiyah for Computer Science and Mathematics. 10, 1 (Jan. 2018), Comp Page 54 – 62. DOI:https://doi.org/10.29304/jqcm.2018.10.1.351.