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 debian-7-turnkey-phpnuke_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 17:48:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 640f0fa1dabfff459c2defa3d1919c4e7e8c7a56 * md5sum 6d071c372399a1352c331e9ebcbba8e7 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) iQEcBAABAgAGBQJSXX/LAAoJEIXCXpWhbrlN/QsIAMcn+eEhcrYIUI4JQQeF2ONG lzixPukWWJMSUSLMIk5vkviTeAM+VoHm7AvYEQIasrmO8FIgx/d7UadrWqP0awyj J+DIR9CbF3G5RvP7SD2qQoOP8/4Xfmuy18Kz+p6vHU5I2Cx0wMfo72AHIEkRjWJ/ SFM6Wbtd4fQWseDzKsoWfeRLz3JTwoGppt6+IQ2Z8V/Kbn5rR5ULCCPGQSHDAO4s oDeZqD5Y65PMnymY9iHIVzmutbzIs3bDWuGWQiRNxgq9a+w+zn68Yxlz3fDUZdAG y5ghvbPiIf/Dif1xaYeN7mnymF5lOnofUBQxyQcOgIPcxUPW6hTcKSAkKj7RYzQ= =VLn6 -----END PGP SIGNATURE-----