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-13.0-wheezy-i386-vmdk.zip.sig gpg: Signature made Tue Oct 15 20:32:41 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 9df3fd39cdd1102cf038ebf9b2f61d8977e53d6f * md5sum 203c0b70d648e621dc972202563a3c79 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) iQEcBAABAgAGBQJSXaZfAAoJEIXCXpWhbrlNWjsIANPNrfprPrn/gYHRdzKsLCSk axAXrAKaPLLCeBBEuMD3Yxkb/npMztHONgUQcqgLC4dq2dMD4NFWzvtiDuFT3sxa S01x7PJkCpSDMl9ndEg4WzDu2fZEP6Z7JMe+3RmJZ6ET2JYvyi31osHOx0UkHXVm pqaEFp76RfuU8UUeEPaggKYFehL/yUFW++RKVFErgBm6OyUzwKmNAnUnq25R/Uop LJz9m+9o/ZMf6ET/az3ew220zc4HbAxM3h3SC3WU9KJ7BC0mSUz62MxeAxeIsRf8 6nFmFfwayHftZGsP2oTAHFQx9XGCi0WdLerjKe4hj9VmHQogPSTZttr5I7+Z0Qw= =LJI6 -----END PGP SIGNATURE-----