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-sitracker-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Wed Jun 5 00:33:26 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b2cda853558a6699d4c0b863d083190e979160de * md5sum cde9fbc69a6d2362733ca432e2fca5c4 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) iQEcBAABAgAGBQJRrodLAAoJEIXCXpWhbrlNa/8H/R87XDmM0v7DbN/P44wqKhaO 02z2OD9Rb27kPt0l3eo73Faw1LhEtxns5UdX9qqOLTu/3LZjxCP0M81IQriaiGA0 8BjzY+7Ybg6cE2RLHxvby1wxuQe9mdqUpytp76GpgEavBXXi+FCTdyAe0DKrLfOJ 3bkq83pVe/yOZKna1LR1FIaRuBzeeDebpfvI0b1Wt0fqmhrZd4urBuuc8mOtXwjv A6j8vjDD/z2m5nP7A1cMRciHIJ3NHgLVL/NpYwlJONgcxH/UT8cV0S6SJO7zflI4 nZ+gKCJGktSwfU+Zf7SYoomopfBL5CDu1AyT+2jnAAwJ6ovvxYzFDvaCtSmmsWA= =UipH -----END PGP SIGNATURE-----