8.4-8.5,8.7 Birthday Attacks, Multicollisions, Using Hash Functions to Encrypt

• I thought it was fascinating learning about the statistics of finding a pair of birthdays in a group of thirty or the odds of finding two license plates with the last 3 digits. I thought this was very cool. I also enjoyed learning about how to use hash functions although I didn't understand it all completely.
• The most difficult part to understand was the Multicollisions section. I was very confused on how the we could find multiple messages that have the same hash function. I didn't really understand it.