RE: [xacml] Resource-location

Hi David,

That’s an interesting use case you wrote below. Would you use string for the data-type in that case? I was thinking that the ipAddress, dnsName, and anyURI data types would work well for this attribute too.

Thanks for the info.

From: David Brossard [mailto:david.brossard@axiomatics.com]
Sent: Wednesday, August 07, 2013 8:47 AM
To: Tolbert, John W
Cc: xacml@lists.oasis-open.org
Subject: Re: [xacml] Resource-location

Hi John,

It sometimes makes sense to define where a resource is located. Imagine a purchase order (PO). A PO would have been issued in a given location e.g. Texas. You could then write a rule as follows:

a user can view a purchase order if and only if user.location==resource.location.

You can then use urn:oasis:names:tc:xacml:1.0:resource:resource-location to implement the resource location attribute. We have quite a few location-based access control use cases here at Axiomatics that are like that.

Cheers

David.

On Wed, Aug 7, 2013 at 5:35 PM, Tolbert, John W <john.w.tolbert@boeing.com> wrote:

Hello,

Questions for those who have created policies with resource attributes (from section 10.2.6 “Identifiers” in the core, p.97):

Has anyone used the following identifier, and if so, for what purpose?:

urn:oasis:names:tc:xacml:1.0:resource:resource-location

I am imagining a use case where one might want to direct/restrict certain user groups to specific network locations or environments. Examples may include production / pre-production / development, or different views of the same resource for different user groups.

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David Brossard, M.Eng, SCEA, CSTP
Product Manager
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