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-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:21:35 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e380be3f2413c7dd59547777b10e066b9c4da6f3 * md5sum 5fe24f39713814124cc494b34c88013d 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) iQEcBAABAgAGBQJSc3KXAAoJEIXCXpWhbrlNYwQH/2rNjhq3sTL/f6lZoi9dD82N +CT8/+gB0m/L/4kdJ2s257T7L6dQg+GJ1mIYbDTiEXVdzyMHNWKbU9m/G9Sbwgnz fIJsMLt1UDFBMwBVK+r78bRO8/ohOlnjeNivKKXEcJkcAgS/HaQMQcP8TVAmk8wj eDbtvOi4eBWcaz8J8cTJ0/xE11dYDa/OVxQvJ+G85bLGlReBtYc5H4vA4UIqBA3v SifjYI5mxVmCyT6RhCHg7eCQG8PweLEGhACdTMfiO/DYrTEUZAsVpUQJBy8FESLH r0BRdIklibRvmeGXqX1jejkY2DKqyaE2RdbufX1iOVZeQxYgF4fBUEQcHtd3DHE= =Xf+R -----END PGP SIGNATURE-----