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-wordpress-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 12:41:56 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 65035683edd144844c93578ab1552160d2d4ffe4 * md5sum e87102655dcde1f50e9daf60718ea7e4 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) iQEcBAABAgAGBQJQM4IHAAoJEIXCXpWhbrlNnVEIALFmaZWI0lObXHVfROJlkORm vmdQpEfBUzWxGJNLE/a5YXeT5xjpOi5yO0JIilQyMBbTlNyvRaZap5vpVZUyUT3S 2XVbc0PCOM8Ky0ACd6MjLz+M/u9CSwiO0gfOyYL16eGkr39O8LbuEr0to4TFw8hl EkXokC7G9f44nqbt24gE1vOjNnZEfZMroABanBzp+csWabn3i49Y8eKYTuSbgKH8 uwQey9za1fao7nAz6FenLjJ6+CI/dT8g1LANKDkETON9b4skHXXZETfkp78Ngk56 XFv7fD5BjYyIwQMEdG/7csydajO4d1IOwD/TopxQf4u/+rK6OUFi0SRKEnccVZQ= =wZ5t -----END PGP SIGNATURE-----