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-domain-controller-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 08:53:48 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e360a79360ea34626e3a37b918bb601913da0e1a * md5sum 98cd5c6ad26951288e82ca9ca9eb4338 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) iQEcBAABAgAGBQJSc2wUAAoJEIXCXpWhbrlN8W0H/jqR61k2qcSgtH9a8+PoiQJ4 u4/u2ZoTJMQc+K+yZoPQunFu0E51qj/nnzqLDHRwKGD2u8kweUQZk+aCqgeQcUVp bCwrS7RTQmrDbUht4/YL+74MR521SaToI4UfWknEmEKTt1ssS6qM6sHt9f0Bri/5 vynRiMPlqv9tue0oqDNoNYeUG+25PtoBmZkokJblsoXNY9PTg56Vyj/j4guuKdpg Wr57v+qBQ2sqM3EwLh990J2XcG6HvPHatr5A6uaMh9JH2LPPUObg07Z0dRGbiQp7 ksvsOOJnSKVCVCabdfeekYOwgBFccak1ZLJyO/5JQNIMnabs/OMfGowHubUICJU= =ZtPA -----END PGP SIGNATURE-----