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Subject: Re: [xacml] Delegation with open attribute categories
Do you mean that both <Subject> and <Attributes Category="Subject"> could be used? When it comes to access requests, I would guess that it is not a major problem. However, for delegation, I would suggest that we do not define a delegation model for the old formats. That would be very messy. But I am not sure what the gain would be. XACML 3.0 policies would not be understandable by a 2.0 PDP in any case. A 3.0 implementation can internally translate 2.0 policies into 3.0 form, so it could load both types of policies. Am I correct? Regards, Erik Anne Anderson - Sun Microsystems wrote: > I know it is "messy", but would it make sense to try to support both > formats, just for backwards compatibility? I know we have specified > an exact equivalence between each of the old category formats and a > corresponding id for a new category, but would it be possible to > actually support the old category formats in addition? > > Just a thought and a question... > > Regards, > Anne > > Erik Rissanen wrote On 09/20/06 08:55,: >> All, >> >> I have looked into how to map the delegation model in the new format >> with the open attribute categories. It turns out to work very well and >> the categories simplify the delegation specification a lot. Everything >> can be done with the normal matching rules and there is no need for any >> special delegation treatment, except for the process which generates the >> administrative requests. (I hope I am not overlooking anything here.) >> There is only one issue with indirect delegates. I have added issues >> 49-52 in the issues list to cover what I have done so far: >> >> http://wiki.oasis-open.org/xacml/IssuesList >> >> I suggest that, if people like this, I will update the delegation >> profile draft accordingly. >> >> What I have done solves issue 33 (how to match any delegate), so if >> people like my proposals, we could close that issue. >> >> Also, should we reopen issue 9, backwards compatibility? It is marked as >> closed since everything so far has been backwards compatible. The open >> categories are not directly backwards compatible, so that is not true >> anymore. >> >> Best regards, >> Erik >> >> >
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