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-twiki-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 10:41:03 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 54b2e9f072845a685a09a2388803d1de8ce7dc83 * md5sum dc2597cd6c28c3e863338bcecb88eadb 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) iQEcBAABAgAGBQJSXm05AAoJEIXCXpWhbrlNJWcH/iz4dXxC7wCqgto6ERVTJE9f YjAafkD9oirPi5kRb70eA7vHeq/PpDTDPkw1ATXW146utdsaFrsiOqdzZNz5J9gg Z4+5t8tNqkvhvepgdFj+9Nh7EPSQP4kbmizqFxfeTMFhik5LGrj1vO6UteMtcmg4 9eVEhxqww/3qC1JmdlCj3QcrqhQ9S5uvjyFMH6Z9owXetv9uj3fRDGT2snAcgg6h vQ744HkTq2H3a2c6BiBA0WCv7vz8M1XbVr7xyzHH97PSZdAUqMU+lH0NU4lV4la2 Jg01+vo1uox6uaaCMtwjhiSoMqmsBzOEmeAK0FV88uNfU+jUeUW4kw/NJaf0nKA= =tXtl -----END PGP SIGNATURE-----