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-12.1-squeeze-amd64-vmdk.zip.sig gpg: Signature made Tue Jun 4 14:33:29 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 67b4d3a4c6e34bdd8471ae4ab336974fcbb3c142 * md5sum a285168a6571e3af2133585d48cad95b 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrfqxAAoJEIXCXpWhbrlNXKYIAI2yJXSTB4XhYdWuNN3BCHuf AWyRqA7a4VQLU3DPGwa/+q0TWB1SD1BNUBH2bG4Z2S+RnlJJyA8PhM5tEsIzTqeu bxNIoIOysJGLUvJ20vU35gE0mmbYIlBiExtJ4SOVUVwN/FPFXVf1LJRaHVGVQVfi yRzz35eQqg98PWvI3fBzemU1/QcnV1KKVseXNa0wOPiZTakVRPehLSWotORRxek8 BgUMY8yv7wYfnEbtPD4y0tUmhgv029AlJXhrKVf3nFCmfV1allgGz4njogB/+b0A tGZVSB6TQBsk8VfuiwZSv6GOd9TZAb/qS4BuabhovSC2A8O4nsT2WxFcyQ3Ybuc= =UAex -----END PGP SIGNATURE-----