[OLPC Security] Some anti-theft questions

[Tim Newsham]

>   > 1. Is there a way that a stolen laptop can be modified in such a
>   > way that the cryptographic lease doesn't expire? (setting RTC
>   > backwards if that's possible, Is it? I don't really know.)
>
> No.  Write access to the RTC will be protected by the firmware and
> kernel (this code is not yet in place), and only a cryptographically
> signed firmware and kernel can be loaded without a developer key
> (this code is already in place).

What about with an external NTP server?

> Chris Ball   <cjb at laptop.org>

Tim Newsham
http://www.thenewsh.com/~newsham/