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-fileserver-12.1-squeeze-amd64-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 13:48:17 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 04ac2f21c1a1e1968f94a5f575c545c607c32d0f * md5sum 5683df94a42d4a6f764cfed7c5a02565 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) iQEcBAABAgAGBQJRrfAaAAoJEIXCXpWhbrlNp60IALkMzc3eTUtdc+WKRd15l9GS T0gVMDqLLTJZeFkqSv2pLMTOtFKZs6q+wlTIVba5qC7NZSWAT5iZ6uCwpIRtlKWt SORNsI5q6OpPlmbBjazzlb5pv2xPO9Eb3T8W4gUrsjuH5OunXPO0/IbTmK8ZKJfa dy0Uo7fGqeo1PSy9+BZN8JAdowm2fgUqDwg9EiKsTrHRD/KFTEOaMcWOmSZnWAWH MvMHZGTI+zid+hfBDMuMeqQCZcF5hajT6Kg6zHfCOOaapWsW3PQUOkaA3yQHT42+ JmVXeEFEDFLKjZFBxiNN8heUpBjGQw8L7CxnJlhnYdpBEYfsJ1OfVkrRf+nD6bU= =hymj -----END PGP SIGNATURE-----