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-roundup-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 10:02:41 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum bcc2e370d4a789effa2fcbaf9fb2092d49b24efe * md5sum 0af8dacf46388ff55050becc286fb869 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXmQ5AAoJEIXCXpWhbrlNE5QIAN31KFI1zqxNFnzeT7ZJ6+Gw Dcaez5v2T6Ls079P2467d2BdIxNAdMzX1ZMt0RO2jywNMPNMMJU6YTqIGasKpKuS JVivv63lsM74B6Kr2lhQBgSF/YsIFx149ZqmAa9MOyT8zFvFw8XXAGDNDz4fZXGk ZWC413ndZXnlLr2nLSzmdbz6t7q+I9nTpFXtmkPFvvyzgkxkCozbJK6gSIbS1sQu ymYZpnZPByU55OedjIpTftaNhaKGte9d1QG0YFLbKgJ5JcDha2R7UEbjCWCkqIRk CbnDj4JYddtkqWqswsAi77VnLGdK7Tzx7OFylS43kV1clmgri9JcF54EX0NvDv0= =Y4DF -----END PGP SIGNATURE-----