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-elgg-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 11:40:11 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum bccc88acfd7f827554ad3347bce7c33d17b8897c * md5sum 91c457b5a95712aeb1db29cc447d0ac6 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) iQEcBAABAgAGBQJQM3OPAAoJEIXCXpWhbrlN1PoH/02HUx3Pi/9eeh/b69ieGAiu RZT6jfiJdUmG7aEiRMHYNh114SaN6T6muay9iCz/T543H5+XN0bYgI7auKP0hTBm jgSViFcPndHf4mGJRyT1k8vDF0wHZ8kF6vHrULQSq78KJfWzoWB4DrmMZtvGvHsN 8utdhqXlzzFfJTYmpW66U1huiDfrAlaWDbzzabkVYu3FrzdHCJecNiEySHy/+KL/ z1x+mps2BNLSQliW6FrfUOAf6UNIwTyKvfAy2/9jHDoxk9KfvD4sDuIHWhHIN5Mk LMxPPUW6zT+hhoVFxkXQ5Qd4ZixSN/RNi3Sha4Gohxzqy6kejCBgaYhFeP2VBmE= =6mG+ -----END PGP SIGNATURE-----