On Sat, Apr 26, 2008 at 02:33:11AM -0400, Karsten Nohl wrote:
[...]
> Assuming that hardware backdoors can be build, the interesting question 
> becomes how to defeat against them. Even after a particular triggering 
> string is identified, it is not clear whether software can be used to 
> detect malicious programs. It almost appears as if the processor would 
> need a hardware-based virus-scanner or sorts. This scanner could be 
> simple as it only has to match known signatures, but would need have 
> access to a large number of internal data structures while being 
> developed by a completely separate team of designers.

Wouldn't it be fun to assume that these are already present in all
sorts of devices?

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