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gpg

GNU Privacy Guard. See gpg2 for GNU Privacy Guard 2. More information: https://gnupg.org.

  • Sign doc.txt without encryption (writes output to doc.txt.asc):

gpg --clearsign {{doc.txt}}

gpg --encrypt --recipient {{alice@example.com}} {{doc.txt}}

  • Encrypt doc.txt with only a passphrase (output to doc.txt.gpg):

gpg --symmetric {{doc.txt}}

  • Decrypt doc.txt.gpg (output to stdout):

gpg --decrypt {{doc.txt.gpg}}

  • Import a public key:

gpg --import {{public.gpg}}

gpg --export --armor {{alice@example.com}}

gpg --export-secret-keys --armor {{alice@example.com}}