From: Chris Schumann (cjs_at_visi.com)
Date: Mon Oct 15 2001 - 09:01:32 EDT
Using a scope or logic analyzer will probably be of no use.
The system is designed to make itself useless without that
password, and it would be trivial to send the password to a
chip and have it remembered.
Then when a password is required, it is sent to the chip, and
it decides if the two match, never showing the stored password
outside the package. If one were VERY serious about finding it,
you might be able to shave the top of the chip housing off and
probe the chip while it's live, but for years chips have had
sensors to detect such invasion and can disable themselves.
Best to replace the chip at that point.
Chris
----- Original Message -----
From: Quantrill, Adam <AQuantrill_at_scigen.co.uk>
...
> >From a technical point of view, CarMichael, I'd check out each
> chip on the system board on the internet, looking for non-vol
> devices such as eeproms, SPI eeproms and the like. (From your
> post you may have already done this) When you've
> identified them, get the data sheet and it would be a matter of
> reading off the data probably with a scope or logic analyser at
> bootup time. Then you might be able to reconstruct the password.
>
> - Adam
This archive was generated by hypermail 2.1.3 : Thu Jan 23 2003 - 09:57:38 EST