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-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 16:23:13 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 69ec8b9ce9d515fa017700a276f3cd34e1adf512 * md5sum 82a35ea2c8988b69df4703e3a323721f 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) iQEcBAABAgAGBQJSXWvoAAoJEIXCXpWhbrlNWxYH/112KsKsJ8P/P4YwAieKloDB jCwCbTz23TYTMA7Osfm7FXsFRWSJeBSX0MMeQSxj45rSOwMmtPK9JE1wXmuMB/OT IjvKSzBeHIzuVXH5iV6wrSm2vZj6bFbuFUGhW/Zfzh3VuNwDXRHJ70Spi13LPfzD om0IYS2fT0+VWwAOTQ+XRL9DRFztIicu9box2/+76LGElW9mag3vddSAnJcQ4iDD 8en9AZrlF4Gt4pKCGETxBgKHWu7PTmNJFortpSeQ8T311AXhin2C0bSsmt3ZsWOX bkcEQkNYqN0LSMMr5j+csNAXQ8+jcLbFQUjPEWaEB3W5UrmJZ3CDZUzDCOn26mY= =RQlh -----END PGP SIGNATURE-----