[MPlayer-users] [OT] AC3 vs. DTS

Rich Felker dalias at aerifal.cx
Mon Aug 1 20:12:36 CEST 2005


On Mon, Aug 01, 2005 at 11:43:00AM -0400, Giacomo Comes wrote:
> > > For the future I'm still waiting for the next big thing, since I'm not 
> > > that happy with the heavily protected new HD formats. I still want to be 
> > 
> > Heavily protected? Any cryptography where the attacker has the key is
> > not heavily protected, it's just basic obscuring/obfuscation and will
> > be cracked in no time, just like CSS.
> 
> That's completly false. You are talking only about weak encription 
> algorithms like CSS. CSS was a "secret" algorithm. Once people understood
> how it was working (knowing some keys) they found how weak it was 
> and how to guess the keys analizing the encrypted data (what libdvdcss does).

You fucking didn't read what I wrote. If you can play the movie, YOU
HAVE THE KEY. DRM/"content protection" is always obfuscation, not
cryptography.

Rich




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