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-mantis-12.0-squeeze-x86-vmdk.zip.sig gpg: Signature made Tue Aug 21 11:54:43 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 56fd9267c2f44f79521e6e6b9b42363e109e8441 * md5sum 0967db865612a43811fff40afc1e0d47 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) iQEcBAABAgAGBQJQM3b4AAoJEIXCXpWhbrlNvUUH/3hLjUVNGb85lAzfGxRMWwkq +9chAkgAnsYt8ad/ij9wG9Fr9RoYVR2UzA3kr1kpxnc4LtQWRJH2ySpDD3PQVCqt 3kysBtux39Rfw7/0nQhHrJCbNltgQ+dgxboxbTXU6QzdZ9wkTZRBU9To+rVJdwPm OADbo+6wfsnu9ydsR7oxGL+1ssg5v1PE8dCDx9bD62Vz3/6os3bGbobeeqnz5gg1 RFw8AxRWZlPTYiPrnZLI3o4ZypG9v5PDNLTCGuU7HHOPv/MRhYm8of+TRvyr3IOy qoY/y7T1iK8UYV4HB2mHRyd834Z+Wl5QmdoAyBjsei0piGbNiHaBkB6aDCFpR60= =Rv69 -----END PGP SIGNATURE-----