Re: DRMTICS 2005 Call for Papers

Francois Grieu correctly wrote:
> Not quite all academic DRM proposals work like this
> [...]
> Secure unremovable identification is not bound to be security
> thru obscurity.
[...]
> Provably, the ID nor the bitwream can not be recovered without
> the key, or breaking the cipher.
[...]

and

> Note: the above simple scheme is very vulnerable to a
> collusion of users buying the same music

Ay, there's the rub. [Hamlet III,i,65]

-- 
--Bryan