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-clipbucket-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 11:31:50 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 94fa585fb0da58b6903a7c2b00ec023e3f4bb01e * md5sum bb124c6ab3232d81939f6dddc5ecfa55 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) iQEcBAABAgAGBQJQM3GWAAoJEIXCXpWhbrlNuj0IAKbWLjnMWpb9z2xyxLJNoNWi I2fOSKWivHBpHV/Eu0/lPrajrzDJjzhFh3cGMeerNLwhDsAm6zTWWoUiqywTI8mt zyANKXkQNLUTViz17fdzSegJJnBD63WqUL/V78ILe37/O3kfLmb/ReIbaWMHbXbd oNwhNbBG+u46+u0ivJ9fgcg8kxQcfjpQO1CKN+dXf9jZOnpqg0jq6ISI1SHq7c9Z 149xDc6Pln5RrROEmQQyEr8ysRtF8pslCQZKhVK0rwr9uOpqnwLugjWNsDTAGkvH gV90uNBZqHMVPKsOJIRumGeEyeyMxV+pNJshLma0r/3BCYbLGC0Dadh2eqq1p0g= =b39H -----END PGP SIGNATURE-----