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From: Joey Maier (maierj@HOME.COM)
Date: Mon Feb 12 2001 - 17:49:22 CST

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    Can anyone out there explain (or better yet, point me to some pages that
    explain) the difference between the access matrix model and the
    Bell-LaPadula model? I was just reading this

    http://ei.cs.vt.edu/~cs5204/fall99/protection/accessMatrix.html

    ...and their description of the validation process says:
    =========================================================================
    Each object has a monitor to validate every user access to that object
    in the following manner to check for appropriate access rights:

           A subject s requests an access a to object o.
           The protection system presents triplet (s, a, o) to the monitor of o.
           The monitor looks into the access rights of s to o. if a is in
             the entry P[s,o], then the access is permitted; else it is denied.
    =========================================================================

    That sounds a lot like the subject, object, and reference monitor
    that I usually associate with Bell-LaPadula. What's the difference

    --
    	"When you understand UNIX, you will understand the world.
    	 When you understand NT....you will understand NT" - Richard Thieme
    http://www.slothnet.com - is currently unavailable :(
    

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