Section 5.4.2

Difficult: I have done these encryptions a lot, so nothing was difficult. I work in the security lab, so cryptography is becoming second nature.

Reflective: It is interesting that we don't make use of an NP-Hard problem for encryption. It isn't even NP-Complete, and could possible live in P. It is interesting that we are depending so much on something we think is hard, but not provably so.