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-lighttpd-php-fastcgi_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 16:34:21 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 8956deacbbc5b26ca364a8fb98862b1e6066d5e9 * md5sum a0c00632f294830eada224e135bde010 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) iQEcBAABAgAGBQJSXW6HAAoJEIXCXpWhbrlNFJgIAJc7TwSVc/fcnb8w89ST2wGP XSm4WxRk9RVvJLbrenJKKOIR+RMDn9MDVFZY0qC4H3mQ4UubilIW0RgC5ycjPflO Q36ZztK2Maa6xoxzWQhL4Rmnk8MQwUS0C8ImPZ/rq/BdUk1z+krhcKBTKGtZ8aU/ Ld6KNf8b75fpXl5iXndlb9+dsaEPkancsOMFVGG20db49pRZRXsip2ztOxhXXP7n 4666SNJ7PCV5U+ESIAUFjUo47qkqGoJZt9TQRUQRzZ7r8LHEloZe8IQBLBT8k0xq QRsO2Wkvtc4RNZjpZQ+Ifmlju3YA957oMr40/2P3YmOYuh3VX7xG5worVYkIArg= =2H9Q -----END PGP SIGNATURE-----