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-deki-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 15:19:47 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum f25f070f94c875694b1accc3104331749d27c295 * md5sum 2d70c865e7286aad25da364856c9fbdf 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) iQEcBAABAgAGBQJQM6cEAAoJEIXCXpWhbrlNXSYIAIjKxcmYAOirD/Q9cxVSiVPd Qwx7mCX3/r42oqkjZaWGfgWOA2ZJW3lJCpZzCgg1gLBZtpYwd4uTM7EbGUzhbG75 3JByoSUtcO9SpRjsAotQb3Jr8djAEPAMbhp3flRkbMGbU8+ZhxB7np76h3FIzht6 nNjehDesrsExEnUHJEslb3dgesmEYQMxxpgogrn7k+XoxZL9VSdnTkaYxwXKxg0A VMEgZ7EPEaiw7HxJt7ck7aiV2ZaMckHL9j2cbpR3FHU8ZnD4wK3kFgjJ4Vc9mfOm mGvCUR3146Vg8a6Lv0wzHoTz2ESaYsAuph2i8R5av0YZcGoYhvLyQi5LfJGorVE= =ms7s -----END PGP SIGNATURE-----