What was the most difficult part of the material for you?
Again, I had the most trouble with how and why decryption works (and/or how to break the system), this time for the LFSR sequences. I'm having some difficulty seeing how to set up the recurrence given some part of the key.
What was the most interesting part of the material? How does this material connect to something else you have learned in mathematics? How is this material useful/relevant to your intellectual or career interests?
I think it's cool that the one time pad is totally unbreakable, though it seems highly impractical since you need a secure way to send the key before you send the message, and the key is just as long as the message.
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