2.3, due on september 15

i got a little lost when the book was describing how to decipher the vigenere cipher. vectors always confuse me, so when they’re brought up for any reason, i tend to get a little lost. i was also confused about the shifts of the letters and how that worked.

although, i thought the idea behind this cipher was a pretty good one. i thought it would be really hard to decipher something where the letters were shifted based on where they appeared, not what letter it was. i guess i kinda understood the cipher, but when they were describing how to decipher it, i got a little lost.