An electronic money system without any origin detecting

摘要

An electronic cash protocol for transactions that are typically between a customer (10), a vendor (20), and a bank (30) including the steps of using a one-way function f1(x) to generate an image f1(x) from a preimage x1; sending the image f1(x1) in an inblinded form to a second party, and receiving from the second party a note including a digital signature, wherein the note represents a commitment by the second party to credit a predetermined amount of money to a first presenter of the preimage x1 to the second party.