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-phpnuke-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 09:37:35 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1fbaedc41f20cdfe94c267c8520290e96c4319e4 * md5sum 775add3cb76f48105bdb86791d2fe73a 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXl5VAAoJEIXCXpWhbrlN1RkIAIbRsrb71MuOZ2OlXfFy2DYw ixSdJnw9eaVA1FzEJQfaW6SYO7F5PGUsISMKDpRg33i/GmCAroy8rrBnzHm0MIGX wuvtYotOYpvK5ibuS3KLR4ZXWsqUqYd1fkolKUBfUrPu1Q8WArluANCSdovRasj8 JWsVe+aU/YKN+Qe7LQyjiiPxP96qrgu9s/If/yAFj3Lvt88Fu9MnBzE0WHoHsmlV SYPf//GoUjnx3z+N4xEyWh2WMn+KnhkHYvj+ea0441NelkilbdZbye7LP0k0N80s wXE1LRCyE1KNN1WqqPL7SEFX4UNvSi5KS8YNO8X/Gc6KlD6u9Sa35QFRwzpnkiw= =zfZX -----END PGP SIGNATURE-----