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 then ...

Encryption is one of the pillars of modern-day communications. You have devices that use encryption all the time, even if you are not aware of it. There are so many applications and systems using it ...

The magic behind public key cryptography is that two parties can derive a shared key between them without ever exchanging secret (private key) information. Returning to our example of exchanging ...