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-joomla25-12.1-squeeze-i386-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 21:32:39 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum caa4af4445c5b588b9c10f15cfb0aa857ee11bbf * md5sum 8fe073bcf8b531aa0147d4af3b4fe482 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) iQEcBAABAgAGBQJRrlzrAAoJEIXCXpWhbrlNpzUIAK033n5Jvw0Cjo+R+UMTzDl0 SCtNr8Z4Vj16YoKw0IUJwkyGXJpOCfzQVpwZ2EseP4yaXLEU7lHyzV64UBUXlBeC +l0d5+Man7ehpCif1bioeLgKXV9qK0S1E8UW5HckaJRAZXRrv7e7rpQzuCt2jYtg qbrxbFJ2ZxtCWiTiq5o/q5lpi2UBG9suHEqUAY3dUgfwUbtWEBve3VNTt0LNnfGs YFBraAdcqlT4vlVbRbKOsslVNSFfLDLVPJXlguAuvp3CwDJJlqKL52lwRsK4Eiqt 0DdrC4n0Kp7MHHNwwgK5+gTirOdjkAQPP/N2qoBfOGlWYIalHBLKdZz6WbZ1qRs= =HUzN -----END PGP SIGNATURE-----