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-elgg-12.1-squeeze-i386-vmdk.zip.sig gpg: Signature made Tue Jun 4 20:56:10 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1ab04f11f6726247dcd5d756353cd4fdd8f99cfe * md5sum f1b7c3f8cdaf011b8adfadd4466cbebd 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) iQEcBAABAgAGBQJRrlRdAAoJEIXCXpWhbrlNvPEIANAxLFibl11HKnfWIIX9cxH/ QWQ5pDC4LD/35f+T76MYpnQFgip0MrIfwo1rZXfu8zT60YtHlpRw3GiDpF690fOC qQhFwpDMHlI111+xvs/W3Y4I0d0g/p6pCq6XouqX0JnQx58qixYKnWhdrIltVHHh R52MZ2aTmjOmiGrk/10UjviyqOqbVAlbi1mOWjwPo53jEpjKJQcVXaLe9DD9nIr9 80l0nZul9f2DKu1aIVhTOLS/P9NrRJSbuAJ12M9qlPz56JOvHwEQ64W5YWjnUgz8 XKM4uzGyq25kNu9csoGFvorHQUpTo6YEu4JqDz2jRSRVAUOz02LBO843a9lIB4Q= =gy2y -----END PGP SIGNATURE-----