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-mantis_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 09:12:48 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 24d82fcaafd15aa22026153f67f84dc96c728535 * md5sum b46288f36e28c7c8fa102549f87001e2 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) iQEcBAABAgAGBQJSXliJAAoJEIXCXpWhbrlNqhgH/jywrINNLaQxewBQomm3c13O aNiol27/Y01dCPSZtWGPqG6BhbdaxAeKln7E6DC+hboX4ksycyVu4kCuNpsgiCBy /20NMbgdgAy5/PUD2dhnNHnvRn/G+c2yMWut5OO8XWn1pVoeUjWKxlyQMPiWVMOb Q0jwYyehQEr6RMedwizitBo3QOXViBTKHsUD2IwpmGiTXkFQc0/Q9Nt5sblDELX/ hO1pG1ghTyJZNQPypD+Z2QQ6S+6mh83gHI4riEnWR3LnkKE5ZFd23LLaucKQKFN6 kcB5v6mHNERIUaVA59RBosSUJas5k1lxkmowvs6nUSjkm/K1HwUkuteQiiXwFDw= =LJjZ -----END PGP SIGNATURE-----