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-vanilla-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 12:38:05 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum c8bf304cb0c0a1266563cad7288e703291771752 * md5sum 0ce6626b9ce4c716befbad50e0f3e83c 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) iQEcBAABAgAGBQJQM4EgAAoJEIXCXpWhbrlNoREIAIWMcsE7GPMyXndkI03EKD3N v9yPox9/viVqHdXhTDZiSntcRNwqJqXoDlduR0OweqGbi9kiGeupHesxUSXFv3Iz GLVSXWrZKAhyoAckFMUFUvI93HDAI1utgtaiWigNW+aoZ5d6Bv4eR5OYNrgTdnkf ywYtqNjEqoC53tgoWvdoKKoJZ0puVFnx5aB5a2m6ddnw2/JAISPZxe4J12/lzh8f RETLkCOjIC2zoSax6tyJ7Gi4kNjQYP5Pv5GP9RnPWXdM0AIQHuL0PCM6o0RJ/dUx efEZPJ+rqo+oCdNlHIbnnA7cE1rW/hRqQWodhA4fxmQ1Iv9bj0P35DVB0RJFgWs= =zzpX -----END PGP SIGNATURE-----