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-openphoto_12.0-1_i386.tar.gz.sig gpg: Signature made Tue Aug 21 14:24:37 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 2b9a29ff8b7fc5ddd5694cd2913e38637dd37b17 * md5sum ec393bdff6779923a12edf7da1f5f099 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) iQEcBAABAgAGBQJQM5ocAAoJEIXCXpWhbrlNUcoIAJNbyOJSEouqZHuSQ0FubzKy A3zRZ+MLvuGtFGfhl1aodq6pc/bT1KDyTwztcZHDZS2qzaCrFvQIsg62AN9Mz2Qq tzWdTKNmZf9QXO1rna/NFE1xLyhDJzWokWg3NL6nMmbJlsInEj955SV1QkGJ/9Ka YiFqTRdwVz3yRxATKNRyoDuMe3ngiFCYIE6I7l/iLCE7hv1qmgnA5fAqGMeaOyIB FuDrBjJMsctzadcXee/OCfmWECvxUyu+JBJKQ+eYN4NolvM1CkVunzhpnvlKg8VW N5CLvAJADm99YWOekeL0WtLMhFv9VC0mxpQk1f3WG8nZJl5sXoBIgLna33FpgH8= =Sd4g -----END PGP SIGNATURE-----