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-sencha-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 16:16:35 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum cd27cabfa00557dfee18c208c9ab3226a71823b3 * md5sum 779fca1f9347f2186e46d5412cf0aa63 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) iQEcBAABAgAGBQJRrhLSAAoJEIXCXpWhbrlNwqYIALIZJBr5NiruJd3S3qwRup/o XO/2mgcuwKBOVdTifxfqPTOrL6Oq4ANocpubQLbGgFAldI6m8GJEZMC7kYJ3rgdL 3FqcsFpgKewpxYjhDqF6xKeD0sb5beCTA8rn6821EpC+tH52T0hhjE1O/q95u+of 02uU/orRn6lhqiq7SVe3U8b3U83soBz6SVmi1p+qgi+K2pxppWAMiKGrMlvF54eY WvxbWIr2bF6aZk7xZr4TBv5W37MRlQGKNeNCwmdwAwFHwVT/JZhTqua+aOA+ROuh oha5kO9oYY6Ebya87sEIdHlsXqyFMA90EYCAMgKMlWOF99PE0f7pRWHaD38Wo1A= =ye7r -----END PGP SIGNATURE-----