Monday, November 28, 2005

Xbox 360 - Hard to hack

Check out the link but here's the tech bits on some of what has to happen to crack the Xbox 360.

  • The flash is encrypted with a per-box key
  • The key is stored inside the CPU
  • The boot ROM is stored inside the CPU
  • Also inside the CPU is a hypervisor that verifies the running state of the kernel, making sure there is no modification (RAM checksums), else the Xbox 360 panics and blows up!
  • The CPU contains RAM inside of it to store the checksums
  • All interrupt/exception handling is done by the hypervisor
  • All code runs in kernel mode
  • The emulator for first generation games can be updated via an official Microsoft download burned to CD by the user, though the CDs’ content will be encrypted and signed with public key cryptography. The boot ROM is stored inside the CPU.


At 12/05/2005 12:01 PM, Blogger Sageish said...

the Xbox modding community is rather small (considering how many xboxes are out there)... I wonder why Microsoft would put so much energy into locking down the 360.


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