We present new micropayment schemes that are more … of magnitude, while preserving a simple interface for … schemes, may be entirely hidden from the users. … [p. 152] Scheme "MR1" … improves on Rivest's lottery scheme by making it … payment. … [p. 153] Scheme "MR2" … solves the problem that probabilistic schemes … may - by bad luck - charge the … Scheme "MR3" … is a variant … [that gives] the bank greater control and flexibility over …
Google-1
Google-2
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