Using PGP for Encrypting Files
After downloading a free version of PGP software. I signed up for a private key. My private key is protected by a pass phrase is at least 10 characters long, Alpha numeric characters. I therefore generated key pair, I am now able to receive secure messages and sign documents.
I selected a .jpeg and encrypted it by using PGP Tools and sent it in an email to myself just to test. The jpeg file appeared on my computer desktop with a .pgp extension after the .jpeg, with a lock icon around it, letting me know me know that it was encrypted.
I double click on the lock icon to in order to decrypt it, a message pop up "Message was encrypted to any of the above public keys (s) ." below the messages said the following: "Not possible to decrypt this message because your key ring does not contain usable private key (s) corresponding to any of the above public key (s)."