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Subject: RE: Another Group - Role Distinction?
I will take this opportunity to post the NIST RBAC paper, as www.list.gmu.edu seems to still be down. I believe what Simon is describing is what they call Restricted and Unrestricted Hierarchies. Hal > -----Original Message----- > From: Simon Y. Blackwell [mailto:sblackwell@psoom.com] > Sent: Friday, July 27, 2001 6:59 PM > To: 'xacml@lists.oasis-open.org' > Subject: Another Group - Role Distinction? > > > Is it the case that groups propagate "up" whereas roles > propagate "down" for > security purposes? > > For example: > > humans is a subgroup primates > X is a member of humans > ---------------- > X is a member of primates = True > > humans is a subgroup primates > X is a member of primates > ----------------- > X is a member of humans = Unknown > > junior auditor is a child-role of senior auditor > X can play role junior auditor > ----------------- > X can play role senior auditor = Unknown > > junior auditor is a child-role of senior auditor > X can play role senior auditor > ----------------- > X can play role junior auditor = True > > > > Simon Y. Blackwell > CTO > Psoom, Inc. > Voice & Fax: 415-762-9787 > > > ------------------------------------------------------------------ > To unsubscribe from this elist send a message with the single word > "unsubscribe" in the body to: xacml-request@lists.oasis-open.org >
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