Marco A. Calamari ([EMAIL PROTECTED]) wrote: > At 22.32 05/07/02 +0200, you wrote: > >On Fri, Jul 05, 2002 at 03:13:05PM -0500 Jim ([EMAIL PROTECTED]) wrote: > >> In what respects would you have to trust the third party? > > ... > > >The third party would have to identify you "in the real world" because > >at the two ends of the transmission, real money will change hands. So > >you have to trust this third party just like you trust your "real life" > >bank. > > This is not true; there are e-cash models that preserve the anonymity. > The bank that accept e-cash ca be able to recognize that is a valid > cash generated, but cannot know what piece is (i. e. no serial number) > Like coins, not like bills. > > But aniway pay for a volunteer, free and peer service sound odd .... > from the beginning. > Could you give an example? If the bank recognizes it like a coin, what keeps me from duplicating a piece of e-cash and haveing it accepted it twice? (I guess the "pieces" of e-cash are data, which means i can make a perfect digital copy of it)
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