Blinded coins a la digicash http://www.law.miami.edu/~froomkin/articles/oceanno.htm#xtocid583124 On Mon, 9 Dec 2002 Valdis.Kletnieks@VT.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 > > -- Please visit http://www.icannwatch.org A. Michael Froomkin | Professor of Law | froomkin@law.tm U. Miami School of Law, P.O. Box 248087, Coral Gables, FL 33124 USA +1 (305) 284-4285 | +1 (305) 284-6506 (fax) | http://www.law.tm -->It's warm here.<--