W. Aboshosha, B., M. . M. Dessouky, R. . A. Ramadan, A. . El-Sayed, and F. . H. Galalb. “Evaluation of Lightweight Block Ciphers Based on General Feistel Structure (GFS)”. WAS Science Nature (WASSN) ISSN: 2766-7715, vol. 1, no. 1, Sept. 2018, https://worldascience.org/journals/index.php/wassn/article/view/32.