What is the difference between encryption in the 1930’s vs. the 1970s to today? Include a discussion of the transition from mechanical to digital encryption methods/technologies and the impact upon modern communications. Develop the paper in accordance with APA formatting. Paper must include 3-5 references, and also must include at least 3 figures or graphs (embedded images are fine, but please keep them to a reasonable size). No cover page or abstract is required.