Information processing system, information processing method, electronic money service providing system, and recording medium

摘要

An electronic money system requires lower management and running cost, and features higher flexibility. An acquirer/brand holder managing an electronic money brand manages all keys used for authentication processing in the system, and issues the keys, as necessary. The acquirer/brand holder distributes keys, according to a tie-up agreement, to issuers issuing IC cards and a POS center, an MMK center, and an affiliate merchant terminal unit, which are apparatuses for users to use the IC cards or for managing them. The acquirer/brand holder, however, does not distribute an issued key to a cybershop to which a user can access by using a personal computer and a reader/writer; instead, the acquirer/brand holder saves the issued key itself, and carries out authentication processing with a predetermined IC card upon a request from the cybershop.