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 debian-7-turnkey-oscommerce_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 09:36:39 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1342d9164da5b5983ad745bb6bd538282dcd94b5 * md5sum 6908fd30b6fed49b61ba17b1e9edc641 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) iQEcBAABAgAGBQJSXl4gAAoJEIXCXpWhbrlNRHcIAOI6o9ackVU+C8EzhAgAB+ze GtLzZFLAEZ42Kn7oiCrhaY/oRASkbw82pcDhfYx9w6saSUelfy+rGbRQ8MANzkFX 4E9WOfkNgazXzZ8OgCvmur43hyxER9/UyYhE+oj3cVAgngnbB1ZIpxVXoiTChxy3 yGmMXflTU5fPopdSqB94EF6uqlH8NHvzubrRMaXxoIWPH94arMLeE4gAePIbd4eY Pzqv3/87rWl4/N6uafZJXAEteW7HrXhRqe4oJZyrNiI71azxSUjdYDimOTRcc81j lVHU3cMm6OTMuZXt/IPZOxSQZD5FtJp7mZsd5SnsX+u/S2HLR/5F89p4F0BEeVY= =A2Ba -----END PGP SIGNATURE-----