9.1-9.4 Digital Signatures

• I thought the RSA signature part was really interesting. It was cool to think about proving that you discovered something without actually telling anyone what you did. I also found it interesting to see how to use the birthday attack to get a fraudulent signature.
• I'm still a little confused on how the hash functions work and how they're secure. I think I need to see an example of one to understand it better. The ElGamal Signature Scheme was also a little confusing but I think I understood it after a while.