[cap-talk] Need Challenge Problems

[Karp, Alan H]

Jed wrote:
> 
> In my opinion anything that can effectively work can work at 
> the network
> level.  At the network level it becomes quite clear what can 
> be done and
> what can't be done.  Once a scheme for communicating permissions
> can be agreed to and standardized at the network level, then I believe
> it's fairly straight forward to implement such a scheme at the OS and
> even I expect at the language level.  Trying to go in the 
> other direction
> (start at, say, the language level or the OS level and try to 
> extend to
> the network level) I belive is a prescription for disaster - 
> as I believe we
> have seen repeated again and again.
> 
Client Utility started from within a machine and projected outward.
That greatly simplified both our intra-machine infrastructure and
application writing.  The main advantage was that there were only local
references.  On the other hand, the intra-machine protocol was message
based, so you could argue that we didn't really do what I claim.

_________________________
Alan Karp
Principal Scientist
Virus Safe Computing Initiative
Hewlett-Packard Laboratories 
1501 Page Mill Road
Palo Alto, CA 94304
(650) 857-3967, fax (650) 857-7029
https://ecardfile.com/id/Alan_Karp
http://www.hpl.hp.com/personal/Alan_Karp/
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