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US 2009/0024629 A1Published application
Access control device and method thereof
OwnerKoji Miyauchiinventor
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OwnerKoji Miyauchiinventor
Estimating the term…
Access control appropriate to each processing node is achieved by evaluating information published by the processing node. An access control device (4) ranks subjects of consumption activities by their trust values, and determines whether or not the ranked subjects include any subject whose rank is improved from the last time. When there exists a subject whose rank is improved from the last time, a subject having data to which access control information is set against the subject with an improved rank is made a proposal that the protection level in the access control information against the subject with an improved rank should be decreased. The access control device (4) also judges whether or not the ranked subjects include any subject whose rank is worsened from the last time. When there exists a subject whose rank is worsened from the last time, a subject having data to which access control information is set against the subject with a worsened rank is made a proposal that the protection level in the access control information against the subject with a worsened rank should be increased.
An access control device for separately controlling access of one or more second subjects to data that is kept in one or more of multiple processing nodes by each of one or more first subjects, the second subjects being subjects excluding the first subjects, the processing nodes holding data of the first subjects each controlling access of the respective second subjects to the data of the first subjects based on access control information, comprising:
An access control method for separately controlling access of one or more second subjects to data that is kept in one or more of multiple processing nodes by each of one or more first subjects, the second subjects being subjects excluding the first subjects, the processing nodes holding data of the first subjects each controlling access of the respective second subjects to the data of the first subjects based on access control information, comprising:
An access control program for separately controlling access of one or more second subjects to data that is kept in one or more of multiple processing nodes by each of one or more first subjects, the second subjects being subjects excluding the first subjects, the processing nodes holding data of the first subjects each controlling access of the respective second subjects to the data of the first subjects based on access control information, the access control program causing a computer to execute:
Dependencies are inferred from the claim text.