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-vmdk.zip.sig gpg: Signature made Tue Jun 4 14:47:29 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d885dbfd49320a888d32ff0792cfab44f5c96d05 * md5sum b8ac740137fe687064679113cd2013f6 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) iQEcBAABAgAGBQJRrf35AAoJEIXCXpWhbrlN9bcH/ia7uaTYX8MgmIgFw1z5LyBV pxOb4NynOM/EURl5aq4SwqNSe88A0bzuarsSJ0BCYrnPDX1f1/EaxOC4fMFnED7J HuFJnppDgI3PeAAGAYoGeobpBMQed2rPgipDcApEbi99wWa4wDksINNl2D+fexRc 2RSO19f5FcfoHo+pcnYz1Ax9M1TW4PQtQXTl63MBRDEvSyhFUcQJRM2gofTYkxV/ lQn6N6oo6bErieMBEhgWxQ8J6OAMrg6I8BPW2ot+yt2kaCWB7nTMXXl4L8Ipkgti hfM2Oy4R+0ivuoeFHlFK9jSyfHtz+/IH+yiFEMktUdDhaUNzptXGCfcGJrp3k5w= =yKuD -----END PGP SIGNATURE-----