gpg

• Encrypt file for self

  gpg --encrypt ["name" | --recipient <self@mail.com>] <file>

  This will create an encryped <file>.gpg file in same directory. Opening it normally will show gibberish.

• Decrypt a file

  gpg --decrypt <file>.gpg

  This will ask for your gpg passphrase and output the original <file>.

• Export public key to server (so can encrypt files there)

  gpg --armor --export <self@mail.com> > pub.key

  • Copy pub.key to server (via scp or copy-paste), then

  gpg --import pub.key