Method and device for managing right objects and disusing contents objects

PURPOSE: A management method of a rights object restricting permission about the rights object within a device are provided to interrupt the circulation of the contents by performing the adjustment of right object. CONSTITUTION: In case an abolition notification is received, it determines whether a mutual authentication is effective. A device or a rightful person is whether the lawful holder of a right is determined(415). A password exchange for the reciprocity correspondence operates(425). A compensable right object which the abolition target right object recompenses is determined(430). The amount of compensation is reported to the other party(435). In case compensation is completed, the object is deleted.