linux-kernel - Re: AppArmor FAQ

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Message-ID: <262350.24656.qm@web36604.mail.mud.yahoo.com>
Date:	Wed, 18 Apr 2007 06:31:37 -0700 (PDT)
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	Joshua Brindle <jbrindle@...sys.com>, capibara@...all.nl
Cc:	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: AppArmor FAQ


--- Joshua Brindle <jbrindle@...sys.com> wrote:


> Biba and BLP are only incompatible if they are using the same label, if 
> each object has a confidentiality and integrity label they work fine 
> together

Joshua is correct here, although the original Biba observation was
that flipping BLP upside down results in an integrity model. Trusted
Irix uses (used?) both Biba and BLP.

> (as well as MLS systems work in general that is).

Doh! He had to get the dig in.



Casey Schaufler
casey@...aufler-ca.com
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