[U-Boot] secure embedded linux system

[Wolfgang Denk]

Dear Simon,

In message <CAPnjgZ359pN2di57u2GQv5thOjayTMyXpkfz02HamqxvmdAMbw at mail.gmail.com> you wrote:
> 
> > Please correct me if I'm wrong - but while this can protect against
> > software attacks, it cannot protect your system when someone has
> > physical access, say with a JTAG debugger, correct?
> 
> That's correct - they could in that case just change the software in
> memory after it has loaded, perhaps involving some timing skill.

Or, even simpler, just halt the system and load aand run a version of
U-Boot without any security restictions^H^H^H^H^H^H^Hfeatures.

Best regards,

Wolfgang Denk

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