In our previous installment in the encryption series, we looked at how you could encrypt your files using PGP. Apps that use the PGP technology have several advantages over other encryption ...

They say, "send me your public key". I do send them said key, and they send me back a PGP encrypted file. When I go to open it, PGP complains an tells me that I lack the private keys to open the file.

I've been looking around the internet for an example that shows how to encrypt a file with an existing PGP public key that was sent to me. The examples I find generate the key pair on the fly and ...