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-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 08:28:48 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b03e3319f47895d802efc91e2a856c2a795019d6 * md5sum 5295e15aba777ffdedbb2c221676c2ae 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) iQEcBAABAgAGBQJSXk43AAoJEIXCXpWhbrlNPSYH/iKzgs8V+qIPj17Omyxxu3D2 /qhgkfbrMg4z+s63tizluAR0HCtMA1nMe9n7FIYZ9d8kMnQaqGX/eFm8gW0QIpHb dR/38W4GWnttWYmfihWn/2O73L4Nr6PW3AZWHbEn0e9zoOnDU4fGwbODIk8Em2CE M6/rzRlqJ8wQuEiO5UuvkQve7tLMWKf31pghhfTKMduoUdbo40GlHNrsiYmC3Z5c BNrCHd7Jc2TFsmY755OTJgb/jRXOLieDmNgvEZ69y3E9EjevBHU8N81F3kofnVWn PKX+8ayFhfwCKvsZlRfXm1oT7r7ytHmekhA/5iJvb6A6UzwvXuZqeBsjhvnpago= =mRrB -----END PGP SIGNATURE-----