Scribit Jonathan S. Shapiro dies 30/05/2006 hora 10:04: > Read permission on capabilities implies transitive write permission.
OK. Would it be possible then to have to sets of permissions: read/write, read-only and nothing for data pages, and read and nothing for capability pages? > > I wonder if a write notice flag could be interesting. [...] > This notice generally comes too late to be any good -- the horse has > already left the barn. I was fearing to come to that conclusion... > Also, it requires dynamic monitoring that is generally agreed to be > too expensive in practice. A comparable technique has sometimes been > used to handle dynamic security level tainting in MLS systems. For he sake of my curiosity, would the removable proxy idea I sketched before be possible in Coyotos? Would it still be too expensive that way? > > Then again, this breaks Flexibility. > I have seen several references to the "Flexibility" design goal. Is > this goal described somewhere? http://hurd.gnufans.org/bin/view/Hurd/RequirementsForUser#FlexibilityRequirement Curiously, Nowhere man -- [EMAIL PROTECTED] OpenPGP 0xD9D50D8A
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