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-phplist-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 16:39:50 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum e4a63fc360715eaee5b11adadc6bdfaf5463c5f2 * md5sum ec6a34f2db11b7342eb721c64a3b0e18 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) iQEcBAABAgAGBQJQM7nNAAoJEIXCXpWhbrlNQ8UIANsKYaQkEosrC5sDsjBQD4R9 nOnOmyugIBGag4do0HIXguZ+eFjeBVtkbDK0GCfJz3yXXUo/1qur/nK7IyT9bSt6 y+dqyFb6w27ZaQdGg4nFJxA11E5WwvuByTYCl0kKSxJc0eYcMld8hzTEPVHysGZr UmCeAFH5zaKpPGD4OgOeh/Vr1j4prdz1dU+h/sFED6jXJHZyopdqGPUUtwR5AyDR cvRJZZbzJrkicaJXmvKIKTmbvQxYd3EplntYK0r1flSE1e6F0JPIPRqIHa7bWTJ+ BAj9tq+PoFdNTanLap4ZcTb4SxodSlqLdZX/B8XlxqmneP7Qhsemfp15JBkC/N0= =Z+JB -----END PGP SIGNATURE-----