ar X iv : 0 80 2 . 08 32 v 1 [ cs . C R ] 6 F eb 2 00 8 Distributed Double Spending Prevention
نویسنده
چکیده
We study the problem of preventing double spending in electronic payment schemes in a distributed fashion. This problem occurs, for instance, when the spending of electronic coins needs to be controlled by a large collection of nodes (e.g., in a peer-to-peer (P2P) system) instead of one central bank. Contrary to the commonly held belief that this is fundamentally impossible, we propose several solutions that do achieve a reasonable level of double spending prevention, and analyse their efficiency under varying assumptions.
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