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-pligg-12.1-squeeze-i386.iso.sig gpg: Signature made Thu Apr 18 13:39:55 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 40da8856be0eae610f5325301c1e1eac9455120a * md5sum 42f74f55a8ab54d98ea360f3ef51e516 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) iQEcBAABAgAGBQJRb/eZAAoJEIXCXpWhbrlNPogH/1Gcg8j2l8Rcjvqs4d2HaMcG v26mPB8ueMYKaLHHFwsGAkG/ualh/GVtkJxlGf8B1DUfkIq35lQUNBRb5g42vf6Y clmPgynXix4JMYA7d+YA1Fi/DGKstouaYANJgl9TYk4xkC3S2J/QLRTWnWcQBUCn egkFofBy+buO/vrlFO926L+cWtne2EH8eucOQtJWLKtWEi4lDhfVP9VNIpg/iRdr 1yvfj9LuHc3rGnIWbqMBSd0rMbjh0CK8WeBbl9iRYp9k9XIJsEvrMxmd/nThSRw6 iYp5guo+ydrom3WkHXL3VXI/GFH5iRhWA5JK+xYxzFvQi6r84V6y885K++ypgf8= =d3NE -----END PGP SIGNATURE-----