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-openphoto-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 09:25:29 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum eedd9669853aec803ea5d55904aa28e1d41879f4 * md5sum 925bf3b2973fe6351d0337d9bfce4422 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) iQEcBAABAgAGBQJSXlt+AAoJEIXCXpWhbrlNUKkH/i71NEF1JF0uZL3S3xgB/u2b 0G4XbZ5x29w9LAm+ZS2x/i590HMj9O7/Vx213XX1k6yR5dzx0TIMq2jlHobAJf6Y f+YGd/m1BvQ8HsaTFS8q1zyOlPBMeFdv351LPPTmZvHYtTCktsXdEItY7KxXg8UK iwx9xZp+skriEIgzc2XAMMrqtu10gex81A40VRsy+poWYjmdFBqLdOkrbiHRPwcv oMD5EFi5hXcpAKW5ZwAb5sRN4P7IwGNyWMg0iCe+RnYRf2+Fuu9t5I3nSfm2I+x2 uTU9QkF/hUYAHyRPO68LRzmqfy3OenGOiBj+xi7YCnpbd7x4XI3pmXV2WWtbfUM= =M7mr -----END PGP SIGNATURE-----