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-mambo-12.1-squeeze-amd64-vmdk.zip.sig gpg: Signature made Tue Jun 4 14:08:16 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b8b922d73f3f4d04197b5b72d2e391aababdee93 * md5sum 14d01bc9917c06257ae785a71f7fd805 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) iQEcBAABAgAGBQJRrfTGAAoJEIXCXpWhbrlN09MH/2HUTexepv0MmDZkOZOGJsD/ AyUKwuhYYp82N/mrIqmzISo67U+LvQBGbT2rM7zptfBHWQlQcPFcSwhALXpvPmBn my/P6l6KsEnB9Kzn8yeYv7xrgWOaNs0wE/On3f+dIkCiqrX5I50F3gT1SV3z/loa 4Zijz3+wkyxC4SBgQTXl7EbuQ7syA+KPUzkGDb886NdLCX6Xn22V8V2xt0aot8L8 jjwUX4db2XUaAWTiaYmM/JkJyfOGM3KilTE57oY5t140+QoiUtH3Gn261iOaly/g uZL9lndgqN5rQXyEN0bSsuhjoRyLzOeSSJQjFyt8tmtiuFlgtNVd9TtnOYf+4kY= =OlnU -----END PGP SIGNATURE-----