2.8-2.11

I found the one time pad as the most interesting part of this section. It's interesting how the one time pad is impossible to break. This appeals to me since it's pretty cool to see something that is concrete like this in it's security. The only downside that they indicated was that the pad can only be used once, so generating them can be prohibitive. One part I didn't get completely was the linear feedback shift register. I'm not quite sure how it works and what the matrices that were int he book were used for.