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-joomla25-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 16:12:14 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum dbe742a6d95c5ba06d57d191aa0767057f14f36d * md5sum 154cb7e59646e87be0474264338c1d7a 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) iQEcBAABAgAGBQJSXWlSAAoJEIXCXpWhbrlN4okIAJUzbIFbz+2CIVpGa2TsCKzw 4qL3g3dFOmr9CWW0SV4SiYujs2tLvutpWsbNzSJCyKtveJzTik35sT/dzChuvxcu 2IlyOv7mwYSI++5FnznJ7oKdG2GFuVnJV5UreyeYXfKfZxuuaerx50qCz9WjMEnP XiPoRTS0nRNe08bervGFwb74WdjbQXmbeWu2ML1fMI2YOyxVOfjtnzKdogSXgo9W lIDFZteJPqXUGRy7Vjyf7M2gCXWuPPXgu1Ue6fKtjfYWwKUHwqzTOMeaoPuRGcCj 6DHpD6o70IR067VaktayGx4yJBR1OtV4rmhRDVl1Xn6xjsZCWD0iJ3VUO/VwtAo= =7S0q -----END PGP SIGNATURE-----