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-orangehrm-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 15:01:26 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 09c61a44cab53c374ee04ce7a3e592482bf4a436 * md5sum ce4fafdf3568c55192069867b869e93d 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) iQEcBAABAgAGBQJRrgE+AAoJEIXCXpWhbrlN9gQH/j0DkIzTzVnErTor38ifBADb fCvyId2KiHE3cUhlKGOwlc5FAnHqUZEeBWnRUhzW/z65nHvic+C1NQEYfmaPNsnd x/BbvBesUEVMlOI047SqzJZ7mJZ3EQtmTLlBsq4u77opbwhtAFhXy2azBB+XKugc NXFGrOpo+yU9Vu9a00FfzQ3smZobI2DhYntU5e4duklJIqYfW968szNpc3PtteXV HrtAE5giJ9DibCCtiEC1hBIxzPJAKvrzSL1rAzb1vw38UxphxR1HbjAyojsYVron Drt0NwDN/a3IedWDjm3KRhv6itkQliXU+aODl0NKpFyCloT229DZzbx6FWLQhp0= =+7qn -----END PGP SIGNATURE-----