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-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 17:31:10 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 215c4e49f3149aafda8fd4fef5616f600960250f * md5sum d9cdf7f1aeb08d16a92ad04b3118ec9d 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) iQEcBAABAgAGBQJQM8XVAAoJEIXCXpWhbrlNSyoIAMvb2VnEnlVhtYACFG5G5ONf nqfkHCaTWQzGN9pnJI0BVW/WOw2kx9uCI59EK2RZloCTduuVAVi88Zrweb4mIGl3 Cr+bsHo3FsIXXzTFsobJFT1eKiGnVIgbnlVGdgMqc4a7KLgbeUJkXBAfqXYA4O7N U8Xs/CZA9ZCHT6V1AMyuOfoVIQ1GDTuH+ZzFbnTb6o/Kd+Nv7zpYV6T5ACvBIezb 2ZVtn2pFFiDDi1sxWI+adEW6Sc9UfgqRxvyGrUYDBSMnHgbSlMxoGofNr5L2oPvJ V3ueCptjVB9tzoB8YaRz86376H+Zv75mK/uCT/rTqRXFGdsR1bZEPnmJfsoqOPU= =AHpc -----END PGP SIGNATURE-----