Blinded coins a la digicash
http://www.law.miami.edu/~froomkin/articles/oceanno.htm#xtocid583124
On Mon, 9 Dec 2002 Valdis(_dot_)Kletnieks(_at_)VT(_dot_)EDU wrote:
On Mon, 09 Dec 2002 17:47:58 EST, Edward Lewis said:
Does anybody have a reference on an authorization scheme that
doesn't imply any authentication?
World readable files.
We know how to do that already ;)
I was thinking more along the lines of a zero-knowledge proof or
something like that - a scheme where you can prove you're authorized to
do something(*) without having to prove who you are first.
(*) and explicitly ruling out the 'null check, everybody is allowed' case ;)
/Valdis
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