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 debian-6-turnkey-collabtive_12.0-1_i386.tar.gz.sig gpg: Signature made Tue Aug 21 13:38:39 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 76f724c4b4b24fd99365dbb94d6fbb4e8de0190d * md5sum a8cfcba30cd7fc652494586b0ebe74d0 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) iQEcBAABAgAGBQJQM49XAAoJEIXCXpWhbrlNbQ0H/R5B/D6ITzlbnXjXZE+MqVtg QBu6qjGkZ8NiuLEKyi8KzeQunvXKA00oegAiRP6RlOI4wA7885sBPHDflKwLdkYa bPIToThmSuM3H6v3Nv80RSylZif1tRkCoq8Ph4hUv+7+KG7k8+3rFxoUQ4EpCI/4 WM79VL3eBOoJW4dkKObQDQNaH2sA8GUR8z4cEHWi1G9b6Fuw/cF6Tzm+HSQFc8Xa i22jb09XX6F20+0d3Sirm7J0SDArZSFc4ZMqWypQukBCtHuB7eI9kOUvOPiPPMZZ DjlivsRlYq/qgoBkocoNnP6WQytnctuzqLKwNeDY1FaNYOkEjSy6xJbpADf5sKY= =9yV1 -----END PGP SIGNATURE-----