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-nginx-php-fastcgi-13.0-wheezy-i386-vmdk.zip.sig gpg: Signature made Tue Oct 15 17:04:36 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 63bbb9bc7052de3e93d094656adb6edec4413c27 * md5sum b21ea7d21fec4c69520b2731ceded8b8 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) iQEcBAABAgAGBQJSXXWaAAoJEIXCXpWhbrlNrm0IAOzWsXAwwX4qXdF8JzmcTAG/ 4T9sfbR/w2JTCdvDUjQzjlRvJfYqQrBAXEAaCQzVebh2ex0QeHZxV/PA0F3RCN7h dpJHDnLMh0mCeZXCt8eckj0R+A0y4l0KK5EgsKuYpqMbhK4zsWGd9TvqAx6Sqwwp +odnkHaVBBrwz3ZKGcn+l5ybd8Lzv88dXdTOPLCnwfnulxTq+ezCquAz9TC0Bkr+ o3bE1sl+Fofia83Y9w5G7EMYVgldyTdSm2uEAXAqu7zrVm1CqpjdH156IOzidJg/ 9MFdd0JeYKB5ZCu1EQmNu4mJA9/wgqhjX90pjFde9LRxPlLMnjnLm+fs7QPQHy4= =T9JR -----END PGP SIGNATURE-----