Unlinkable Divisible Electronic Cash

  title={Unlinkable Divisible Electronic Cash},
  author={Toru Nakanishi and Yuji Sugiyama},
Recently, some divisible electronic cash (e-cash) systems have been proposed. However, in existing divisible e-cash systems, efficiency or unlinkability is not sufficiently accomplished. In the existing efficient divisible cash systems, all protocols are conducted in the order of the polynomial of log N where N is the divisibility precision (i.e., (the total coin amount)/ (minimum divisible unit amount)), but payments divided from a coin are linkable (i.e., anyone can decide whether the… CONTINUE READING

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