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-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 22:13:41 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 48b1cf3119e3fea6db73f2f441ef3f07341bd81b * md5sum 3f2ebc1fb268f531ce660467cd5b6cc0 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) iQEcBAABAgAGBQJRrmaMAAoJEIXCXpWhbrlNVPsH/3wkDssS3k6jUyFGssCm8Qby x4pjbD6+w+igb4idqANt7WqOEQSfcvSyHc1+3AJkuw18PK05L2BcVsjz4TnnL7da XaC7IuxRrR7z/9XJSwZGJnNDEW5lMTJk6rELR8CVamlNccfU9MbJmuR5DRTRM3SA Ca5jIPglBqcEKho2QpAyUXmY4uDAGlNOS81qdoUZA1XAXmGglMdxAt5v5wsdzPu2 /bKtT+2PYiWRjVBBPkCEu7JXrjNCEnN3y4aaHf7VqNK6LQi3zCnuybRE7ZrW7a9V pfL+Thlm+fE8kYgjTOX0wC5lqKDm0rrVWo00BRG79o8d27enCjHYsQHscSMcLes= =d6WB -----END PGP SIGNATURE-----