Misc
Voter Registration
You’re encouraged to register (and vote); I have voter registration forms if anyone would like one.
Either return them to me or to the GOLD office.
Questions?
Substitution Ciphers
See The Black Chamber web site for discussion, examples, and tools
Breaking Them
Frequency analysis of letters, pairs, short words, i.e., the most common letters, letter pairs, and words in a ciphertext generally correspond to the most common letters, etc. in the plaintext’s language.
Try It
In groups...
- Remind yourselves of the ciphers you constructed last time (or make up a new one)
- Encipher a message of 1 or 2 sentences and put the ciphertext in this Google doc (double check to make sure it’s enciphered and copied into the doc correctly)
- Try to decipher another group’s message without knowing their key.
Next
Start reading Enigma.
Read chapter 1.