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-bugzilla-12.1-squeeze-amd64-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 12:37:26 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum bf7310ea11a81be17ab3c8ee4415fb04c9ad5640 * md5sum af7910845960eb3391b7de81b4f0ce40 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) iQEcBAABAgAGBQJRrd9/AAoJEIXCXpWhbrlNEuIH/iapOYLxRn+9S2M8tRgDlorH uWZCjao4ZpubA5Xva0hQtuWHhvDENTM4bfbPUE1+HiCfHGfBXCP4c+BhVEtGj2ZN ioBSsGiBEs4aEa4NNBatwyC5Vaa0MY6Uon1PI5SnoXeTHuVGsnBNEStyo+IQEcBk 6aGLcfY/y5YNseE6/pdaV1M68auVNVScZTYD3ZnewkDzxTrhrZeH1yt0DKV8tY92 /1e61PVFPV+hWxdyg/9Z+LwNelO4YwHHqhkb71p1JDE7+kv49V/HrofxHtooEP1F EKNn7wlKrBIE3wiydRx1nfWooVhUP2vtC8wrZItnJ5/4/ggWudc9uv/KZi2GysU= =36QH -----END PGP SIGNATURE-----