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-12.0-squeeze-x86-vmdk.zip.sig gpg: Signature made Tue Aug 21 12:10:12 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 88ea7ba7664e119744af628ec12161d8d3cb7165 * md5sum 843b53047ce1dc2cc03cc31fcaea3427 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) iQEcBAABAgAGBQJQM3qYAAoJEIXCXpWhbrlNb1sH/0ouezmV9sle3UgeZkxY+Sma KoXZmGXBJtS1796kKLNwehsimPpfZoU67ghhuFxSu9OuMQm4S0QQwgpZfOvzn2W+ NNBmM1WKXzUlcwm2EpSw603uxWUl7fZVleDYT8B539C6TQcQngwilbBvqzs2lEtS SZ5sAP4jWGs+4oBcDPjCA5obrOjnA3aXaQ7kF55H42YNiE+jCBCB3FgaNoiH+SSC bKe0ZOM0QuadMclO1vPHtQTwDyFaQ6093RCintZDcAKn0LuY0sZe6Noj090UNwm5 G3wtgmzwZuO1Gc7tVrgm146ABmO+4eWKqGevP/hzOy/K3HtJqts6fZrPOxXQwNM= =oR0c -----END PGP SIGNATURE-----