CDR: Re: Burglar Politics, Tempesting PC's that watch TV and DVD

[David Honig]

At 12:28 PM 10/14/00 -0400, Sean Roach wrote:
>At 10:31 AM 10/11/2000, Ray Dillinger wrote:
>...
>>Also, it looks like the sort of thing that could be designed around.
>>If someone were building a "secure laptop" they could make a video
>>system and drivers that wrote the bits in a different, randomized
>>order each time, and which only wrote the changed bits.  If anybody
>>is actually making a product like this, it would be a strong
>>indication that *somebody* with money to spend on R&D considers
>>it a valid threat model, because nobody makes products without a
>>market.
>
>This could easily be the recipe for a flickering monitor.  First of all, 

1. RD's idea sounds like something the content-protection folks
would like... writing to a RAM-based display in customized, random
order...

2. Electronics are so much faster than human visual flicker fusion
frequencies...