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Subject: Re: [xacml] [policy model]: Object semantics proposal
I think regex expressions could provide wider expressive power. What I worried about was there seems to be no standard or no de-fact standard for representing regular expression on tree structures. Moreover, there seems to be no available algorithms or software products. It could require a mechanism for making tree pattern matching and more. Does anyone know about this? regards, Michiharu Kudo From: bill parducci <bill@parducci.net> on 2001/10/26 19:39 Please respond to bill parducci <bill@parducci.net> To: Michiharu Kudoh/Japan/IBM@IBMJP cc: xacml@lists.oasis-open.org Subject: Re: [xacml] [policy model]: Object semantics proposal in addressing the topic of section 2.2 (Object Hierarchy With Wild Card Notation) i would like to propose that we consider regex expressions instead of simple wildcards. this will allow for much more robust decision request attributes. to put it in context with michaharu's example... in a system where you have the follwing: c:/winnt/system32 c:/winnt2/system32 c:/winnt3/system32 c:/winnt4/system32 c:/winnt5/system32 c:/winnt[n]/system32 and you wanted access to only: c:/winnt3/system32 c:/winnt4/system32 c:/winnt5/system32 you could express this as path="c:/winnt[345]/system32" rather than list each individually (as would be necessary with just "*" notations). b Michiharu Kudoh wrote: > > I post a proposal of object semantics. > It is similar to the one I posted last week. > > (See attached file: XACMLObjectSemantics.pdf) > > regards, > Michiharu Kudo > Internet Technology TEL +81-46-215-4642 > Tokyo Research Laboratory FAX +81-46-273-7428 > IBM Japan Ltd. Internet: kudo@jp.ibm.com > ---------------------- Forwarded by Michiharu Kudoh/Japan/IBM on 2001/10/22 > 20:28 --------------------------- > > From: Michiharu Kudoh on 2001/10/15 20:03 > > To: "'xacml@lists.oasis-open.org'" <xacml@lists.oasis-open.org> @internet > cc: > > From: Michiharu Kudoh/Japan/IBM@IBMJP > Subject: [xacml] [policy model]: Subject semantics proposal > > I post a proposal of subject semantics. > > >Action Items: > >2. Submit subject semantics proposals. > > regards, > Michiharu Kudo > Internet Technology TEL +81-46-215-4642 > Tokyo Research Laboratory FAX +81-46-273-7428 > IBM Japan Ltd. Internet: kudo@jp.ibm.com > *******Attachment(s) have been removed******* > > ------------------------------------------------------------------------ > Name: XACMLObjectSemantics.pdf > XACMLObjectSemantics.pdf Type: Portable Document Format (application/pdf) > Encoding: BASE64 > Download Status: Not downloaded with message
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