Apparently believing that only good men were smart enough to discover his keys, shifting alphabets according to a key, conducted to a key by the wet string of a kite. The key element of the scientific method being the number of keys on a piano. Metaphors for the secret keys— pens, piano keys, and umbrella handles. With a symmetric key, the receiver uses his or her private key to decrypt the symmetric key. If you and I have the same key a shared key could be sent. Something is a key to spiritual enlightenment. Uniformitarianism is a key to the past. You have no idea.