7.3-7.5 Bit Commitment, Diffie-Hellman Key Exchange, and The ElGamal Public Key Cryptosystem

• I thought the part about predicting football game outcomes was very interesting. It put an interesting perspective on the topic of sending a message that can't be changed but needs to be deciphered by the sender.
• I didn't really understand the difference between the Computational and Decision Diffie-Hellman Problems.