Micropayments, redux

Andrew Odlyzko odlyzko at dtc.umn.edu
Mon Dec 16 23:13:12 EST 2002


The Micali-Rivest Peppercoin scheme <http://www.peppercoin.com>
seems awfully hard to distinguish from an instance of the
probabilistic polling scheme invented by S. Jarecki and myself,
which was presented at the first Financial Cryptography conference
in 1997, published in "Financial Cryptography," R. Hirschfeld, ed., 
Lecture Notes in Computer Science #1318, Springer, 1997, pp. 173-191, 
and is available online at

   <http://www.dtc.umn.edu/~odlyzko/doc/polling.pdf>

and

   <http://www.dtc.umn.edu/~odlyzko/doc/polling.ps>.

(This scheme is also covered by US patent #5,999,919.)

Andrew

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