| http://www.w3.org/ns/prov#value | - However, if encryption is executed in the ???group??? mode, any one belonging to the same group as the user who recorded the data can reproduce the encrypted recorded data. [0079] If the user is not a registered one, i.e. if the user is a guest user (if the answer at the step S121 is NO), the encryption setup process at the step S122 is skipped and no encryption is executed. [0080] Subsequently, t
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