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-zurmo-12.1-squeeze-i386-openstack.tar.gz.sig gpg: Signature made Wed Jun 5 01:36:30 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 12c07075611eeda77b1c689a8ec8b7440452d63e * md5sum 6d45154e09129663daabef7a615e38e5 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) iQEcBAABAgAGBQJRrpYTAAoJEIXCXpWhbrlNjyAIALxUDRfczGQ2FUh3ukj1WTms yvVRkJjfMgdhQ0ifUXyvP3ImYhMHswS7J9bfqXbQp1nkI6b4aa3NdNitdk1yHT59 8C8dlXQNnFCknWBTCWlyAUQIVInSQmkK+6xYhGGJvRUxlPmf2hcHI1uZ/MMXdBa4 aWwTDoUmVgjufrt+bG2jzmVJCqfGlHlAjxjmHcDOENlOHdjcoWJMFskibQQ+WIkW G+aur1tv0xo0hC1r7wlm0Jq3Vunf1BKExRIOl1u2v5BeyL2M3JiNhJTSdTkR2rAz TurPFiKs188dyazXic/ovnDk1g5rLyL1MmWuI7PIsiXalFsenpqWdWXy+lGQ9hA= =N9UE -----END PGP SIGNATURE-----