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-zurmo-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:49:56 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c973fb57782d3609a7be7512ba08dceb45138064 * md5sum bbbd37e8e35aa25ad1c072ba9756d05f 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) iQEcBAABAgAGBQJSc3k9AAoJEIXCXpWhbrlN02UH/ijww2Yck7NXenLaKuz8IiWF 9p5LclsaxQkDrpl2O6SdsdDygbnSDDUetZ0d8poqIwhYC43H74jm8o7IaWFlWtzL 1EN7Dwa+K3ASrUKOnobt/8C9OUTzvwqv1j4eIvYyK/DrzbWKCpxfyj/PZnxAhMsy icMSIb2EDx7WOp1yaK2/3R2UBiSIn0XcEx3dwiODlpoSmQcgRvRuAyoKmFpFIC5R D0X3j3/YKxrA2Elc5bN2tyclK9pueT/iB221X4IsBbwuJvv+EBZwCncyySIxnuwj Qd210CFmVam8jQf679271OmAbCh3HioErX+ZeH64QKw2wiDt2Ph7MXL3uv65CUg= =Cju4 -----END PGP SIGNATURE-----