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I have to implement an rbac in mica motes. I've read that Xacml helps in implementation of rbac. But I searched tutorials and google and I'm not able to find anything relevant.Can some one please explain how it should be done or any lead to references.

Thanks

Coral Doe
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rutzara
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  • This doesn't make sense to me. TinyOS and nesC are about programming embedded systems in a low-level language. XACML is an XML based language/architecture dealing with expressing and enforcing access control policies. What's the relation? – martijno Aug 23 '12 at 19:59
  • Thanks, my question was how to enforce access control in these embedded systems.as i know there are some interfaces in OSGI for XACML and i was not sure how do they enforce it in tinyos , for eg an implementation of smart grid – rutzara Aug 26 '12 at 14:43
  • I meant implementation of communication among devices in smart grid. – rutzara Aug 26 '12 at 14:50

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This blog would help you to know about xacml [1]. you can find the xacml samples that have been used rbac use cases from here [2] [3]. Actually in XACML, you can achieve both abac and rabc, it is based on how you define the xacml policy. in your policy, you can defined a "foo" resource can be read by role "bar". But actually you want to check the authorization for user "bob". Then there must be a PIP [4] where, it helps to find the roles of "bob".

[1] http://xacmlinfo.com/category/xacml/ [2] http://xacmlinfo.com/2012/08/16/xacml-sample-for-on-line-trading-application/ [3] http://xacmlinfo.com/2012/08/16/resource-filtering-with-xacml/ [4] http://xacmlinfo.com/2011/12/18/understanding-pip/

Asela
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  • Hi thanks for your references.But dou you have any idea how do they implement it in tinyOS .As i dont have any experience in tinyOs before im not able to implement access control in NesC language – rutzara Aug 20 '12 at 15:53