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How to Send and Receive Encrypted Data with GnuPG

GNU Privacy Guard (also called GPG or GnuPG) is an implementation of the OpenGP standard that allows you to encrypt/decrypt and sign data communications. It is one of the single most important tools you can use for secure communications on the Linux desktop.

Several applications make use of GPG and, once you have a solid understanding of how it works, you can make the most out of it