Sec 2.3, due Sept. 14th

1. The most difficult part of this section for me was on page 21, when it gives an explanation of why the procedure given earlier finds the key length. That just kinda got me a little confused, because I felt like I understood everything up until then. The other thing that was a little difficult was the second method to finding the key. Probably just because I was comfortable with the first method, and I didn't really want to pay attention and learn the second method even though it says that it's more efficient and accurate. So I'll probably just need to read through that a few more times, but I was content with finding the key using the first method.
2. I think that Vigenere Ciphers are really cool and interesting! It's so cool how they use vectors and different shift amounts and keys and stuff. This book keeps coming up with new ways to encrypt messages and it's so cool, especially when it uses math. I just am really interested in this stuff. I enjoy reading, and I can't wait to learn more!