" Not even Betty can decrypt the message once it’s encrypted with Bob’s public key because she doesn’t have Bob’s private key." BRAVO dude! What a splendid job of breaking this incredibly complex system down for us, into nice bite-sized pieces that we can digest. I love how you used Betty and Bob to get your point across, and make the information a lot more palatable, whether we readers have a tech background or not. It's so interesting to get a clue on how encryption does and doesn't work. Thanks Jeffery. You rock! :-)