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-magento-13.0-wheezy-amd64-ovf.zip.sig gpg: Signature made Wed Oct 16 08:51:49 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 802ed0fda2e4517e5316e90638a567c27536b72a * md5sum 36e1aeae05f8927dd58880265b81917b 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) iQEcBAABAgAGBQJSXlOaAAoJEIXCXpWhbrlNCIcH/2BCP/q9krQAsJXb7SiTeY1i O5nRg0jeHl1benhctyjkklN6umvBvU0pIspivE2sVh2e8jb+pJ6WClp9jgXG0tnu AX/34kErjReve9Fd61PgXA6btM8FwJr6MUcZUyQDlQHvlsubY8FzPT0pn9Jvgszp 3f5K3/2x1QhyTzSMRVqQ0QMyFwBRWdNUooch9wEsQM7/K2BOiKUFlW7n0IjF9AGn H1PLyJr4ZkMKjzTd17mdeq71bCyACZeZZT0y0WM8v04QM0ELQdtCBKf7z6F+RnMS gaYamkK8ANsufFebm4a84dCgFmQ0Pdy5qReNla/1DzQgrOyDuqeE+bbhf44b2Vs= =xow1 -----END PGP SIGNATURE-----