Make a revised copy of Figure 7.15. Using a colored highlighter, mark all the paths along which the encryption key travels, and mark all locations in which it resides (“Spot the key”). Using a...

Make a revised copy of Figure 7.15. Using a colored highlighter, mark all the paths along which the encryption key travels, and mark all locations in which it resides (“Spot the key”). Using a highlighter of a different color, mark all paths along which the plaintext travels, and mark all locations in which it resides (“Spot the plaintext”).

FIGURE 7.15