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-roundup-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 18:46:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 82872c62181b4c31f441b5ff68c289bcee6c2e03 * md5sum 79cccde1ae22d656f3adc72fed896cdc 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) iQEcBAABAgAGBQJSXY1iAAoJEIXCXpWhbrlN5y8IAKnHPoFvtkmUh38/38jHwXGn ObtMepnJ5AcGfkpA85O+IQ/apehdNjBfzi9wgrqfm6w+NpRvFVLGtox5vAnjgHao uvqrIvau8KZlt/vkHT6jzFWEws72vGviBgNoqxMi0L5IdUd4V1M5Na2MKt+j+otM FqkUdEz5GnGa0TTLzrORmsgEhMtRG5RqDxtclGff5HI1SmN6FupXNUBdBCYTpP6G rp+GfSgipRMAGocuuPIMq3BURP6rDs0iDs1FZSpB6SpYjH3r60nTfC/soPFOd6A3 xCvzewrwZxzmG8RwcroLwrWWgr5Az1va6vt3Uzs0zXs4jKLkWljN161yh7lx11o= =aUeA -----END PGP SIGNATURE-----