Create software that can encrypt and decrypt using a general substitution block cipher. If your program is working, submit the source code of your program. You must demonstrate your program is working during the demonstration. Submit the source code, input file(s), output file(s), and visualizations/results. Please be sure to include thorough comments throughout your program where necessary. The comments should explain the code step-by-step during the demonstration. Provide a detailed description of your algorithm and program flow. Be sure to include a step-by-step description of the tools that you used (compiler, libraries, etc). Zip all files or submit all files at once. This should be in a report format. Prepare a demonstration of your Programs for the class.

python