Abstract: This electronic money transfer system provides an electronic money transfer method and a system for the same which allow handling electronic money in a sense that is very similar to cash, and which allow avoidance of loss of the electronic money even at a time of loss or theft of a terminal for operating the electronic money. To this end, first, information of an electronic certificate for a terminal (A) of a user A is sent from a terminal (B) of a user B to an electronic money management server (300), and information of the electronic certificate for the terminal (B) is sent from the terminal (A) to the electronic money management server (300). Thus, the terminals to perform the transaction are authenticated.

Abstract: A method of encoding a transaction flow is described. The method comprises: receiving information from a user about a transaction type to be executed; creating a transaction flow comprising a sequence of states, where at least some states include text to be displayed and inputs to be enabled for that state; and encoding the transaction flow into a machine-readable code.