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-symfony-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Wed Jun 5 00:46:39 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1b91ed0232e5be74667c74adacf7ed2de00064f3 * md5sum e246e40a3726b6fe40b64445a793fe5d 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) iQEcBAABAgAGBQJRropjAAoJEIXCXpWhbrlNxcYH/jKjJvIE+MWmd6wuK2QNUgvw Q+iFeIj7Vt4Z2ULBH2Y0U91QMp8o/debfyCdp+8pS646hriwLls8201Y6ovzHv8V eYrQXY5JVd/S3rHOZZ88qVX6gIgOiuYe9HgjwWuL4HqR8cuUEMMzfa70SAP/N+iW saCtlNMwOA/JsWhmo9sLqcKrhklNwSSzZRVaTVuu6R050a8iON9rHuu2nu0mqUSR MuIcC31hMJYcfXB+VGV6x2uRniZctct3CBDAnEouba4I3ToWyH60ev/PaLV+LNHF +VhFKSsRzZVOi8Fr678JLQfWVZ0oyLYicfODkzXcDLpKPM/VCospVWsJ8nDDasU= =dgH6 -----END PGP SIGNATURE-----