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-7-turnkey-twiki_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 10:36:15 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1b5a619dfc80c8dc5b7d1e3e2c61a1d96176aec9 * md5sum 738bf069157a2e80d447e0e6e7291359 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) iQEcBAABAgAGBQJSXmwbAAoJEIXCXpWhbrlNaX4H/AnnYneULbzfi+hIJnLfg6ru dWT/w+AEjGC2Ta1P9jrCjmg4Nsox4B8cvIJk6r/Xf2ZOT/z0AGAYGOBjThgq9RUP MnE15cXGYJedlyCyY/pOhNdp+/m0isaS8ikzMTC3LbtVMDwOgsBK7wGOZQcio1wW rbv6RS62W35YJJgYdf7syKqW/G0Cmq5kXHQEQNHUxf4dN8cB1M74lACVTQHaAM4Z ovWr/O9OPNedgq/06E1Or6LAkog/AAMsytepEQtVVJXR/pk4bAnLJRR3KWrXvXO6 ZsJT491qNXZ7XquWx4xGvfKweN8wPgO2A+qwhvNfjITVqo+foEmYe9yGCFOKcnU= =h+Pu -----END PGP SIGNATURE-----