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-silverstripe-12.1-squeeze-i386-openstack.tar.gz.sig gpg: Signature made Wed Jun 5 00:07:27 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum f7bc105054275087a18d5ae96b01b329c50157bc * md5sum a4f9f2ec98ebf3aab11ef030f5452fec 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) iQEcBAABAgAGBQJRroE0AAoJEIXCXpWhbrlNQ3UH/2w7TRqdZKYNVoc00K7DXwWT +k+Nz6GVgtXpE71Jl+nlm3JHWjYCVPNZDb8N4DRRkj4njeWXPNWQRgYR4HjAtNN1 epikuXUfGQlFtq0sZoPH8vmjOT0K/cgzIqEe2iUSRWZ4cDGcZ9lOq0JY+5PUUEIs YIk222+DkgB/hCyWWlq06w4tNTW1AmsryajIXd2OhLMO4weGbE0tMpF9xS5oLMk5 I3RZxk/b8V3bSX62dq8IX8JxfwlYAFeaLGSo3r9qyQHeQ/brvXiRi8I/p62uWc9I 2/vAulfrcr8lQT0Xb3SgUWG4t7McZdAo5tTTTyX0rTapylVwuDjPaTrB/cYTKP4= =7w3v -----END PGP SIGNATURE-----