This invention discloses a method and system of the trust management ID management unit for managing the ID of the user heart . ; the user ID management device, the application service providing device for the user ID management center can freely choose a dictionary ID management unit and the Convention on the ID management unit in the state have not decided the trust through provides a method and system that can determine whether to trust the information provided . ; This ID may determine each other reliability according to the type of information that the management device is provided, the non- specific single entity may determine the reliability of the application service provider ID of the device management apparatus according to the plate is possible .
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