PGP stands for "Pretty Good Privacy." PGP is most often used for sending encrypted messages between two people. It works by encrypting a message using a public key that's tied to a specific user; when that user receives the message, they use a private key that's known only to them to...
PGP encryption gets around this problem using public key encryption. Everyone is assigned two keys: a public one that you can share with everyone and a private one, which you keep to yourself. What makes this system possible is that the codes only work one way. If Key A encrypts a file...
You'll get a public PGP key belonging to the Linux distribution. You may get this from the Linux distribution's website or a separate key server managed by the same people, depending on your Linux distribution. You'll use the PGP key to verify that the checksum's digital signature was ...