On Fri, Jul 05, 2002 at 09:14:27AM +0100, Matthew Byng-Maddick wrote: > On Thu, Jul 04, 2002 at 10:54:11PM +0200, Hadmut Danisch wrote: > [backdoored network cards] > > I don't think so. As far as I understood, the > > bus system (PCI,...) will be encrypted as well. You'll have > > to use a NIC which is certified and can decrypt the information > > on the bus. Obviously, you won't get a certification for such > > an network card. > > Surely the obvious thing is that you build a network card without > this property, and get it certified, and get the key to decrypt > the data. Then you add the backdooring technology, at which point > you have the advantage that you both have a certified "secure" > network card, and the key to decrypt data for you on the bus. > > Not that I'm sure this helps, but it might.
Another question is: How will you print? Certainly, you can't use just a plain printer. Could be any microcontroller pretending to be a printer. So you need a certified and tamper resistant printing device. But what do you print on? Yes, you need certified paper which refuses to agree with being copied. Hadmut --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]