Article View: csd.cmsc818z
Article #27Re: Information Path Theorem
From: Bill Arbaugh
Date: Thu, 09 Nov 2000 20:21
Date: Thu, 09 Nov 2000 20:21
36 lines
2395 bytes
2395 bytes
Bishop is correct. Look at the definition of ITP and the axioms for the Ring Policy. ------------------------------------------------------------------- Bill Arbaugh www.cs.umd.edu/~waa University of Maryland waa@cs.umd.edu College Park 301.405.2774 ------------------------------------------------------------------- On Thu, 9 Nov 2000, Arunesh Mishra wrote: > Hi All, > > Bishop mentions that the information path theorem holds > for the Ring Policy. I think it cannot hold because a > subject can read from an object of much lower integrity > (say 1) and write to a less lower integrity level (say 2 ) > thus violating the theorem ! > Was this a typo or what I have written does not make > sense ? > > Arunesh. > > > > > ------------------------------------------------------------------ > Arunesh Mishra First Year PhD Student > Room 4140, A.V. Williams, arunesh@cs.umd.edu > College Park, Md 20742. www.cs.umd.edu/~arunesh > University of Maryland Dept. of Computer Science > ------------------------------------------------------------------ > > Be what you want to be ! > >
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10f190,27b33aa239947559 X-Google-Attributes: gid10f190,public X-Google-ArrivalTime: 2000-11-09 12:52:32 PST Path: arc1-ca.pugleaf.net!supernews.google.com!sn-xit-02!sn-xit-03!supernews.com!logbridge.uoregon.edu!newsfeed.mesh.ad.jp!sjc-peer.news.verio.net!news.verio.net!news.sanjose1.Level3.net!Level3.net!den-news-01.qwest.net!haven.umd.edu!cs.umd.edu!ringding.cs.umd.edu!waa From: Bill Arbaugh <waa@cs.umd.edu> Newsgroups: csd.cmsc818z Subject: Re: Information Path Theorem Date: Thu, 9 Nov 2000 15:21:31 -0500 Organization: U of Maryland, College Park, MD 20742 Lines: 37 Message-ID: <Pine.SOL.4.21.0011091519290.1258-100000@ringding.cs.umd.edu> References: <Pine.SOL.4.21.0011091509070.22858-100000@wonka.cs.umd.edu> NNTP-Posting-Host: ringding.cs.umd.edu Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Trace: cronkite.cs.umd.edu 973801294 3854 128.8.126.2 (9 Nov 2000 20:21:34 GMT) X-Complaints-To: abuse@cs.umd.edu NNTP-Posting-Date: 9 Nov 2000 20:21:34 GMT To: Arunesh Mishra <arunesh@cs.umd.edu> In-Reply-To: <Pine.SOL.4.21.0011091509070.22858-100000@wonka.cs.umd.edu>