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-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Tue Jun 4 21:58:05 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 71d2c0e301eca655336a8eff4c6708b585a97750 * md5sum 1826843931f04003234213c9820c5387 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) iQEcBAABAgAGBQJRrmLeAAoJEIXCXpWhbrlNovAH/iF2F/7O68eolEaimHCVX/c3 BCH8brE5xmUOiHZmR3S7sL27xZ+Hmua9foyaIRbpj+vzQpeL8Q9cLmTYIiiQBm8a Y7LghegAiWFMX8EWmK3mrdaamIX97g1oyqeA6Iz2K18cS+g5vbIPQ669IOSPc1+4 hDSCmApAsxfpyEgZNcp3vVbDmP4W8TjjnSdVlU5Ju686PlM6vOddH0DK0xddFEVQ +DXHWZaA2tdrC9+SVIyYlismVbBnlfdvcNKS8/f7vaSOWPEzWL09OJh7fl8E4+7j tiv8j9q4VPUaq0op3YfSCExQI5xq2BgLEaqwYdJduAfIbDKtsQB7ZwTCMJHI7pU= =rLSg -----END PGP SIGNATURE-----