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-vmdk.zip.sig gpg: Signature made Tue Oct 15 16:44:41 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum dda1995a39544d25dea3e2f1084c34f81fc2605d * md5sum 182539cfd990fe33b7ccd1a35e0ac8d2 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) iQEcBAABAgAGBQJSXXDwAAoJEIXCXpWhbrlNI3EH+wV6fKUqng7OAP5bSi+2seaJ DbzhCEWzaz5CErY6mo09PLLh3qaLv5GI41mHspuUkoGBgekq5KWuvwvfUbcmh/sb 0X090JejVR7F5ghuj6Xpfnb/XhtUX0ovDr33EqsGxVoM9YtSPOW//SIlJfMaIPC+ ExbnAJFfKyfoztF+JN/fXF8imYjkIIkSWNVGVAORbrGMy+UCT6tgptX+NPiZM7Zi wNEYWbS2ZKvUvpjarGi1FPx82rP3Juf05vVjBpVfD5x8983CL92w1McUWeGVC8Os YkeDubcLNSNGWn3HvqTVJSXkqYgf0foTs8CZNEJfRzmrc/6vmpGlG4yPLHZRpJo= =fPCM -----END PGP SIGNATURE-----