Materials from an elaborate scavenger hunt I designed for the undergraduates in my cryptography course (Math 458) in 2016...
Some of the messages that were encrypted using RSA, ElGamal, and probablistic encryption:
1(a) Fenton Hall
6. QA99 .S56 2013
11. TRUST ME
12. The spy says “no.” So she was not honest with Beb.
(N.B. #9 is flawed, in that it is much easier than intended.)