Richard J. Lipton and Rafail Ostrovsky. Micro-payments via ecient coin- ipping. In Proceedings of Second Financial Cryptography Conference, '98, volume 1465 of Lecture Notes in Computer Science LNCS, pages ??{??, February 1998.  Home/Search   Document Not in Database   Summary   Related Articles

.... [4, 18] the probabilistic polling scheme[6] of Jarecki and Odlyzko, the Electronic Lottery Ticket proposal[15] of Rivest, Wheeler s similar Transactions Usings Bets [19] Pedersen s similar scheme[14] and the related proposal for micropayments by ecient coin ipping by Lipton and Ostrovsky[9] (this last paper includes an excellent survey of the eld) Applications of micropayments include paying for each web page visited, and for each minute of music or video as it is streamed to the user. In principle, micropayments could be implemented by electronic checks. Merchant and user are ....

....user includes w into his commitment to x 0 , and thus into his commitment to his own H chain. Assuming that the selection rate is 1=1000, then the user s i th is payment is selected if (x i mod 1000) is the same as (w i mod 1000) A mathematically rigorous version of this approach can be found in [9]. Note that, at the end of the selection protocol, the merchant learns whether a given micropayment has been selected. In principle therefore, he might deny giving the user the expected merchandise if the payment was not selected. But this cheating possibility is not worrysome: since we are ....

Richard J. Lipton and Rafail Ostrovsky. Micro-payments via ecient coin- ipping. In Proceedings of Second Financial Cryptography Conference, '98, volume 1465 of Lecture Notes in Computer Science LNCS, pages ??{??, February 1998.

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