There are the first pictures of ADD ON for chip Infectus!
The Infectus Team are working for several days to test this interface!
This Add On interfaced with Infectus Chip allows to downgrade and upgrade the kernel of your console!! The timing attack tries to find/bruteforce a hash value which is a result of the usage of the cpu key (so even if you have that hash you still cannot backwards compute the cpu key). But finding this hash value (I usually refer to it as the CB-auth value) will enable the xbox to boot the original kernel (v 1888). This then allows you to upgrade to a vulnerable kernel (eg 4532) and THEN you can extract the cpu key using the kk exploit.
The possibilities for the future are very intersting...
For more details:
http://www.xboxhacker.net/index.php?topic=8555.0 Stay tuned Guys!!
Infectus StaFF