James A. Donald https://www.metzdowd.com/pipermail/cryptography/2008-November/014866.html jamesd at echeque.com Mon Nov 17 20:26:31 EST 2008 Previous message: Bitcoin P2P e-cash paper Next message: ADMIN: end of bitcoin discussion for now Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Nicolas Williams wrote:
How do identities help? It's supposed to be anonymous cash, right?
Actually no. It is however supposed to be pseudonymous, so dinging someone's reputation still does not help much.
And say you identify a double spender after the fact, then what? Perhaps you're looking at a disposable ID. Or perhaps you can't chase them down.
Double spend detection needs to be real-time or near real-time.
Near real time means we have to use UDP or equivalent, rather than TCP or equivalent, and we have to establish an approximate consensus, not necessarily the final consensus, not necessarily exact agreement, but close to it, in a reasonably small number of round trips.
James A. Donald
https://www.metzdowd.com/pipermail/cryptography/2008-November/014866.html
jamesd at echeque.com
Mon Nov 17 20:26:31 EST 2008
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Nicolas Williams wrote:
Actually no. It is however supposed to be pseudonymous,
so dinging someone's reputation still does not help
much.
Near real time means we have to use UDP or equivalent,
rather than TCP or equivalent, and we have to establish
an approximate consensus, not necessarily the final
consensus, not necessarily exact agreement, but close to
it, in a reasonably small number of round trips.