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-joomla15-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 13:47:21 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum baffefe0fe4c2e6e7160a6e4cb27896d7cf58785 * md5sum 33b7d39726c00919fc2c225e03de1b6e 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) iQEcBAABAgAGBQJRre/gAAoJEIXCXpWhbrlN0J4H/j97AhHDt19rz7rdAFeRAQPw YHxCHfvz6EotEV2FHs4pxsr8IthYdLJFQSjau++HllHuxQjh6MU7SlfIXeIFmbni RroPdyrwwti+CqirKky9/GQK5aF/Htd5VJL+TfsUrCpvVhlN2YWZO8XAs9K1iFi4 nDK9rjVy+sY/GU2fSi43Lr6prnMh66wqhNzIC7X9qgPc8OSx25+uJ+f1/Kb6UG3c Ux/OqsaCqpTg1sTsSpWjxmIdxrgjBWIEUFamLkzGnf6bZvK2fibSEPczQuF+mzOc hDmFj9vmUa5ApfCVGJmfCtsBiqrw5EhljTl7By4uxq8yaJzMS00miee7IeHN4Jk= =ndko -----END PGP SIGNATURE-----