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-mantis-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 16:44:52 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c2d4f164093d1cb50871b829adb52e320dc83455 * md5sum a5c0cecbda7e6b005bf252f0df15136e 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) iQEcBAABAgAGBQJSXXD5AAoJEIXCXpWhbrlN0rEH+wdeZHgA8i1LyS9sBZiR07rR FG5Y8Kywf5XQGlKhhODBWtqS/3aNknuv0eMbyKxCD+tO8l7vEIlI+okVerrxeTJn ocn7t/yaKp58F6SLq8+gIvQ/87CbF3Zu3aec2A7B20/djMQLAgM+IYqOkrliNZwn 2abwslrbu3gtyjKPv119CfdXTRazxvfv743xNlUJKQ8XXGsR8t7l852KrmVHYzOd db/wDhG345pZVw3lo7Unu7eSg71Mj4iKMTyxW1p49sAnnNxTYSrIDnNK6rmVsOFD m93+MENu6gFR6XrynZDAvFyAoqJUGckuL6DIiZsuTi/9mjPYBdBIiu+uO6pg+L4= =Q7yL -----END PGP SIGNATURE-----