This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-postgresql-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:26:00 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 17ac20ac012eaaeb2d504775f7fa60232d9bad49 * md5sum ac2d723adffc2fc222c37f4a398e0b10 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSc3OiAAoJEIXCXpWhbrlNPS8H+gLBTSzMWpSbtKu+YFxduxHj o9xj9vd45jK0QKfHxWOpdExJZq5L8YCoouwboZuV8pzS9LlGJgEtBuihJb6QbVKC K9mcahfZejuWn6EvsnKXKZzLGJh0xiuw0zPAK6dqQDuRFEXy4K7S9wYXRfElSQFT kPphHw69FnqH+yDWm60e/PP0TnED7k3+POj8jJZA+Lebme+xLt09GnqDvMEFYKnm sA8C7upQdHAMEC6I52VLrfUxt/iC/HzvlrmiDE+6SUweiYtnEYEbsgtQJFvv59Kn K6Jux8D3i6ua69zsFlJRgmq6wTPMTaVEk0YINoPokALoZsa6jV1TBUt76NUPtW0= =mjQ1 -----END PGP SIGNATURE-----