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  3. March 2005

Re: How will new system state restrictions work? was:Attention Users of *SYSTEM State


I read it as a supporting statement to his first.
How would you determine if a "program was provided by IBM" ?
Digital signatures sound like a good idea to me.

Whether IBM goes further and checks signatures at execution or after patching is not clear. It may come down to what the prompted the change in the first place. If the perceived threat is the ISV, restore time checks may be enough.


Keith



Steve Richter wrote:

Bruce's message also added "only programs provided by IBM will be able to
use system state"


Within two years IBM plans to remove the i5/OS ability to restore system
state programs not digitally signed by IBM. Only programs provided by IBM
will be able to use system state. Any other system state programs will


have

to be changed to use supported interfaces accessible from user state.


-Steve

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