=20
Dear =
watermarkers,
In Coin-based Anonymous Fingerprinting (by B. Pfitmann and =
A. Sadeghi), how to assure the Buyer
B commits the emb=3D(is,i) correctly? (Anyway, the merchant =
doesn't know the content and he could not verify it and how to
trace the illegal buyer if the buyer doesn't commit and embed the =
corresponding "emb" correctly?)
(I'm not so good at the =
cryptographic protocol, so please excuse me if my question is
too naive.)
In some =
asymmetric or anonymous fingerprinting protocols using
commitment, the verification of the content in the commitment is usually =
done in secure 2-party protocols or by some other
third parties(because the merchant couldnt see the content of the =
commitment, he could not do the verification). But I think they
are not so practical to realize. So, I think, there is a long way to go =
for the anonymous fingerprinting protocol to be
practical.
Am I =
right? And does some one can give me some advice?
Your help is highly =
appreciated!
sincerely yours
yan
