The Interesting
It's crazy to me that technology has developed with such great extent that within years of DES being implemented that they had to have reviews to decide whether to keep it or if it was already outdated.
Also, while reading this section, I realized that password security is really cool. I was thinking it would be fun to have my password be an ASCII string of numbers for some strange punctuation mark that is never used.
Also, while reading this section, I realized that password security is really cool. I was thinking it would be fun to have my password be an ASCII string of numbers for some strange punctuation mark that is never used.
The Challenging
- What is XORed? I have seen that used this entire chapter and have no idea what it is.
- How exactly does a Cipher Feedback and the Output Feedback mode work? (CFB). There is a small section on them, but the encryption method isn't very well documented.
- In OFB, page 137 says that if the adversary knows a particular plaintext Pj and cipherext Cj, he can attack it. Is Pj and Cj an individual letter or is it 8 bits?
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