This repository primarily holds the public sources for simontool.
Simontool is a program that is intended to aid in the development of hardware implementations of the Simon cipher; however, it can also encrypt files. The program is now fast due to the overhead of creating simulation data. The program creates Piece-Wise-Linear wave forms that are of an appropriate format for SPICE simulators.
The original simontool program, as documented is here: http://simon.ece.gatech.edu Please see the document: https://www.bis.doc.gov/index.php/forms-documents/doc_view/320-76-fr-1059 for restrictions.
The current simontool program, including experimental features, is available in this repository. The simontool/manual.txt describes how to use the tool, with odds and ends described at http://degnan68k.blogspot.com/