| http://www.w3.org/ns/prov#value | - FIG. 17 is a flow chart for explaining the processing for de-ciphering in Embodiment. [0139] The processing for de-ciphering shown in FIG. 17 is a function added to all of the withdrawing machine 2, device in the user's side 4, and IC card 1 each applicable to the electronic purse system.
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