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-6-turnkey-appflower_12.0-1_i386.tar.gz.sig gpg: Signature made Tue Aug 21 13:29:15 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 7ee539e91da88952de472ba2ea380bbc294b7d0b * md5sum a09a6b62ecb29a3d9b5fc207f9c0cb6d 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJQM40hAAoJEIXCXpWhbrlNWG8IAIUpix+4WaVvoXOGiHQbZXJB ubAbQcVrEQbt1i3GEMg7yrO+c7IVsicVspkQbK92XgLP4FRj/T9IFqCjbl6JPrwW 9HkoD2JrMO7dVFmUnRnUyortDhe6BYFNCt26DW+/eRW5DLU4LA6oRNARx+Ki5W95 Nb7qc4fNrCe5O+q7w7lEElGVrhxU+sTtnsTJlVD0Zi5whFs14XzaJ4vQ84kXhEzY fiM9IWIEhESB8z+XYOqbELWR7V2ZzCKpUX3P5ltEMd8JhqEnp/OMnAHJpzTJaBEa 7d/0nFByvmUvktxXHuhRjVTzZMNmiqO8l0fSgu9tzsA0ildNKftrusHD20QVTJM= =lEVC -----END PGP SIGNATURE-----