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-clipbucket-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 15:16:22 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 8115c7ae7b315a0058b3548a519242face84ef98 * md5sum 467870ac1aa8f47db828527d9514e3d6 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) iQEcBAABAgAGBQJQM6Y6AAoJEIXCXpWhbrlNmN8IAOCx68jxFv8hynd654xzWBZb m/6NVWDTWt3jvXurkkgUaxr6BXXZCbfaR+1VY1XOGMJk8MS6lmVkz4hfKhHM9RFe PO8AV5RvB2aOLBFhisSTNY1gZXWoTKOaMYUc3y5EGTGYBZSbFcRKnMGWj0ZMDEuV xlUQzXgOkBcoMW6PX3j6/rz5V4RModVzahDn7Q9p8/dFhD3yfe3YHfS8QgRYidl5 cUMeztko4TJRo70EtfFDtMnwrghXgdFof9oCMh/yHlqw3cyDwKYB8E/5CuQm3aQy 4wGiNGqdZ29chq5v7kyhV0BG7AotzCp4syDfbOQOOF3VfmvWbPNkHUqhQhBvq+c= =zMEz -----END PGP SIGNATURE-----