| http://www.w3.org/ns/prov#value | - The user is an individual, a corporate, a group composed of a plurality of persons, and so on. [0011] Next, as more specific concepts of the user authentication device according to aspect 1, the user authentication devices according to aspects 2-4 in which the user authentication device comprises a portable recording medium will be described. [0012]FIG. 2 shows a user authentication device accordi
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