Chinonso, Okereke, Osemwegie Omoruyi, Kennedy Okokpujie, and Samuel John. “Development of an Encrypting System for an Image Viewer Based on Hill Cipher Algorithm”. COVENANT JOURNAL OF ENGINEERING TECHNOLOGY 1, no. 2 (December 23, 2017). Accessed April 25, 2024. https://journals.covenantuniversity.edu.ng/index.php/cjet/article/view/707.