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-limesurvey-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 11:51:12 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 7c0441d0ce2ea8ade3a8638c75b1e16495889f3c * md5sum 82f73f7febe6700f9e9f91e9f0655340 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) iQEcBAABAgAGBQJQM3YiAAoJEIXCXpWhbrlNjOIIAIGsgxKDI0i2d0xnctPYG5t2 xGSwMo+vg4QY4JBksWd5xxcPxk22MJWerqtmHFeijWv/9gHJOwnLiTbOC4P9i018 mw9X0yVDawtPIa7RdxQo5w+ljVV5N+2zcIvk71isoaVjJGfXURuq8ydEAWZO3Epl aTfqaBWT97BEV04TQouD0/QeEGXcQRJxCSEYZj92uj7VZByaCbAwLnv0bFzoTH95 YfUzRfEtWbi3BisCty6a+zHF5P3EDNVXZ5qpZfptfaocdYCRSQf87eQuGjPWWTR2 a/Lhu7/lgl08fnllZjHj+5Rrx4LNX9+lH0hVjE6IE859/edqnuYHmXY35VFhRFY= =Koo/ -----END PGP SIGNATURE-----