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asap://XACML. jury-rigged

asap://www.XACML. jury-rigged. Client. PEP. PDP. Rule 1 Rule 2 etc. Policy 1. PolicySet. Rule 1 Rule 2 etc. Policy 2. Rule 1 Rule 2 etc. Policy 3. Target Condition. Rule. Subject Resource Action. Target. <Subject> <Attribute AttributeId=“” DataType =“”

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asap://XACML. jury-rigged

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  1. asap://www.XACML.jury-rigged

  2. Client PEP PDP

  3. Rule 1 Rule 2 etc Policy 1 PolicySet Rule 1 Rule 2 etc Policy 2 Rule 1 Rule 2 etc Policy 3

  4. Target Condition Rule

  5. Subject Resource Action Target

  6. <Subject> <Attribute AttributeId=“” DataType =“” <AttributeValue> … </AttributeValue> </Attribute> + </Subject> + Subject can have one or more ‘Attribute’

  7. <Resource> <Attribute AttributeId=“” DataType =“” <AttributeValue> … </AttributeValue> </Attribute> 1 </Resource> 1 Resource can have only 1 ‘Attribute’

  8. <Action> <Attribute AttributeId=“” DataType =“” <AttributeValue> … </AttributeValue> </Attribute> + </Action> + Action can have one or more ‘Attributes’

  9. Confused about Target? • Either inside Policy/PolicySet or Rule • When inside Policy/PolicySet, Target provides more of meta-data. • When inside a Rule, Target provides info required to process the rule.

  10. There are 3 or more XML files in the works each time a request goes to PEP Policy DB 3. Compare policy from step 2 with the ones in DB. (the third or more xml files) 4. Permit/Deny XML file (2nd XML file) Client (Requestor) PEP PDP • Authorization Request in day to day format 2. Authorization Request translated into XML format (1st XML file)

  11. An example of these 3 XML filesRequest XML File Taken from http://sunxacml.sourceforge.net/guide.html#xacml-target Request XML File

  12. An example of these 3 XML filesPolicy XML File This Target provides meta-data

  13. An example of these 3 XML filesPolicy XML File This Target provides rule processing info

  14. An example of these 3 XML filesResponse/Decision XML File

  15. Resources and References • Sun’s XACML Implementation http://sunxacml.sourceforge.net/

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