Hal wrote:
>There is some work going on to use this as the basis for a patent
free cash system >(http://ecoin.net/mmdh/), although I suspect that
the issue will eventually have to >be tested in court.
[Feel free to forward this to the list].
Nobody conten[d]s, nor could they, that Wagner blinding infringes on existing blind signature patents. There is being cautious and being paranoid. Shying away from Wagner blinding falls into the latter category. Ben Laurie, a list member, wrote an implementation of Wagner blinding available via CVS. Ben can give you the details.
Also, please remember that the blind signature patent holders not once issued a credible threat to take legal action against a third-party blind signature implementation. Sure, DigiCash under David Chaum frequently hinted that they own the space and would vigorously go after perceived patent infringers, but the truth is that not a single implementer has ever received a cease-and-desist letter from a DigiCash attorney. So by all means, I would just ship it.
--Lucky Green <shamrock@cypherpunks.to>
"Among the many misdeeds of British rule in India, history will look upon the Act depriving a whole nation of arms as the blackest."