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-typo3-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:56:51 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e14236aede992e088eaa15e702ce194d42d74530 * md5sum 5ec9e06e4149d0ecc074f2f1b56e8341 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) iQEcBAABAgAGBQJSc3rYAAoJEIXCXpWhbrlNK8AH/3WVLavarh+Wtoh+bKgeF6Ie QavQLKSWUZoBkA2AC00mNeZ+kbSuqCA0GfwQNHPv2cvScRI1+buGhrNgDdi5R3kO 3xtmRIEu0Lcs2Lzi9DV3FeBhUKXrq5BaNljp2pPdxUeOHanQPpOE9uiq2OFxSI8V ZsjO7Fo1ooSPCCMAIgDiBCa7zK2ZdEyE7Rt1q2cX5iN7Yiab3nFHQYotoJWEAXZE bP7ji45E2L69G2+BD+O44f0DAWYZtJrX4V1rR78ThykUW4DoxigIHCws97ik6inC FRiLjrebArJ4kda4KxlORvxSZCviz/6OcPzypqt70KHp1HD1jumuVu3pBpsBlzU= =JYsP -----END PGP SIGNATURE-----