I made the code of this program for graduate school assignment on ITS.
you can check in MY GITHUB for the code.
Keywords : PHP DES, Data Encryption Standard in PHP
To appreciate the IPR (Intellectual Property Rights), reference sources that I use and I have learned will be displayed.
Reference : https://github.com/sapelord/DES
Author : Moch. Zawaruddin Abdullah, www.zawaruddin.blogspot.com