| 摘要 |
PROBLEM TO BE SOLVED: To improve the investiture efficiency of access right and to attain the efficient audit of access right distribution, the deprivation of access right and the deprivation of the investiture right for access right. SOLUTION: In the case of distributing access right from a subject K-1 to a subject K when the access right is successively distributed to subjects K0 to K-1, the subject K-1 delivers new distribution route information K-1 obtained by adding the information on the subject K-1 to distribution route information K-2 expressing the distribution route of the access right from the subject K0 to the subject K-2 to the subject K. The subject K presents the distribution route information K and a subject identification ticket 71 and requests an access control monitor 51 to access the resource. The monitor 51 refers to distribution action identification information 72 stored in a distribution management means 55, checks the access right distribution route, and after checking the rough, permits the subject K to access.
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