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-openvpn-13.0rc3-wheezy-amd64.iso.sig gpg: Signature made Fri Sep 13 08:38:14 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 811eab21f4782d6066f356bb329422c40fd45579 * md5sum a9c62b23f6b765a4e13dfb7bc635784b 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) iQEcBAABAgAGBQJSMs7vAAoJEIXCXpWhbrlN6bYIAJRm7M4chQPl8dq+UBOyJbmr /FU+UKqAB/z3/biu64s5nZOKHusG1PR8VE9t+YQJ0pioWNBqJqm34kuCuqvPRZfZ m2DGEd4aKwijPAbZhMMatSlzwqOgVwMg+EvBFdgRXIXggyBhEdRmLUUc0tUundV6 sMDvizs8HJkgB0B4BNt408+SCNzwMJaiSWql1Tcr0JOjz6CcS4tOUnAKK+vvDIaf fESCLCrd5HzRb2cRqv5zsqLyYbiqT5X7q2hEecESLrWuRHkiTdBWP+UJ0czUqS0v CVuNJ8LS0TjJH/o1De2COitkcrXsaeGiP2Ab/ogqSwQXWhjU87APZsJgEIumfFo= =bn9N -----END PGP SIGNATURE-----