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-joomla15-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 07:31:27 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a1730dbd78ae32590a386dd690d8219859cb0a86 * md5sum 969058ae7e751132b948eda51e66abd7 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) iQEcBAABAgAGBQJSXkDEAAoJEIXCXpWhbrlNIaAH/2sEXlEbjtNNuMAgbdMOjvGJ Zd/UDW+ZQVXby4u2QAeEBJAQ2oiC4lwCsdKB+R4xZK8ybk/eKtbjFLr5641opToJ grD/Zv5ub4/t2NYxcVOaiRZ7Vve3QDYhGCZ4RtwlQcqiB7aSF/0NQMIMgnm6QqAs IVt9GmjjVndAiEkK+GleQSorPq9KUtkdxyqadSMCO0+/oIoBgHb70VoEDILb5GVK AMIiBSqjMggcwY/QKcNY2+xEmQdIgM+h1ZETew0S4MVjjWzo7Qwja7qzaWn4G1Jd NtKDMzjQ2ZQAvR/923UTRmzzU0ECSnZ3QHlZVc6xMJlZ36ebqNqnbwb6hDuTFm0= =N7fH -----END PGP SIGNATURE-----