Stephen Pollei wrote:
Yes thats for the encrypted(HDCP) scenario, both made a handshake
using a 40 key vector and some addition rules. Each key is only
56bits . There is a master matrix involved. It has been shown that
techniques from linear algebra suffice to recover this master matrix.
Furthermore once one has this master matrix you can fabricate whatever
per device keys that you need. The whole hdcp scheme was designed to
fit into less than 10,000 gates IIRC.
http://citeseer.ist.psu.edu/cache/papers/cs/25911/http:zSzzSzwww.cs.berkeley.eduzSz~dawzSzpaperszSzhdcp-drm01.pdf/a-cryptanalysis-of-the.pdf
and a few other places talk about it's weaknesses.
The really odd thing is that its weaknesses aren't even that relevant
since all a pirate needs is a chip such as the SiliconImage 9021 which
comes with the keys already installed.
--
JRT
_______________________________________________
Open-graphics mailing list
[email protected]
http://lists.duskglow.com/mailman/listinfo/open-graphics
List service provided by Duskglow Consulting, LLC (www.duskglow.com)
