Text from military crypanalytics about how to identify poly substitutions

plaintext here
ciphertext here

Well, how to feel? Different? You should, because you just completed the final lesson of classical ciphers. What you've just read would have been worth a good deal of money a long time ago. People probably would've have even killed for it so that they could crack their opponents ciphers. And how much is all that worth today? Alot! Alot of AgentPoints, that is.

Because there was so much information covered in this lesson, we're offering not one, not two, but three different CryptAgent Challenges to complete. The first requires you to encipher some text using a polyablphabet substitution (pretty easy). The second asks you to identify several sets of text as either monoalphabetic or polyalphabetic substitutions (a little more work). The final challenge asks you to actually crack a series of messages that you've intercepted. Good luck with the challenges! You're welcome to do none, 1, 2, or even all three challenges! AND, since this is the final section of the classical ciphers, we'll give you a mystery bonus number of AgentPoints if you've successfully completed at least one challenge in all of the classical sections! So what are you waiting for? Get going! If you're not a CryptAgent, you can find out more and register if you like. It's free, and it's fun!