I guess that it's important to focus on the things that we do know and understand... What I thought was interesting out of this reading was 4.8, the section on password security. I thought that there is a much larger thought process that goes into passwords than I had realized. Also the salt factor seemed like it would greatly improve security, but yet again they say that they already have to work on new ways to keep passwords secure as these encryptions will soon become obsolete.
What I had a harder time understanding, were several things. First I just had a small question on how you could build up a codebook, would it only work for people sending the exact same message? Because otherwise wouldnt the block cipher change more than just one letter in the corresponding ciphertext? Also the output feedback mode confused me a little bit with when you split and XOR everything.
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