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-torrentserver-13.0rc3-wheezy-amd64.iso.sig gpg: Signature made Fri Sep 13 09:32:42 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 76aacf3f852f3fa875d4b217777ddaf0594cb088 * md5sum de845a9092b278393711dccf0e49b033 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) iQEcBAABAgAGBQJSMtuyAAoJEIXCXpWhbrlNcNsIANXHvWJdMmtd+FwkoIyjxbF6 HXOJ5Ayj/tL8bn+s8B4jyv7MnqSsCui16IswkmMFkhY5VYlAkORTaP1s1HC/N30O OYp86qxtuvxOBS3J+nZXIDiaZEbNTaxO27rM6wYfAzy1zH/pHoyD+prM99kY8Njv 34b2Ji4mCbr35GsAsdik+d30VNgOnHX2jEs6K94umEDSJRJHpdKMsgX4j1hhPxKh WA66QiGYlACtjYQv9fZWTvmX1wZJZOsI6YZ1zKMrMAo0cRB8rRGWQeZkjwEXp18T MsoI7EkRBfAMDq/bwpfIyDBu6zlng4OWlr9IwvabfrKx5Iuse0CDiaPoefmNsio= =SDfm -----END PGP SIGNATURE-----