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Re: Part 2: System Structure


From: Tom Bachmann
Subject: Re: Part 2: System Structure
Date: Mon, 22 May 2006 16:45:04 +0200
User-agent: Mail/News 1.5 (X11/20060403)

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Jonathan S. Shapiro wrote:
> On Mon, 2006-05-22 at 15:56 +0200, Tom Bachmann wrote:
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>> Jonathan S. Shapiro wrote:
>>>   The program can check the type of its bank, and possibly decline
>>>   to run.
>>>
>> Just a minor detail, but I believe it cannot. Because if it runs on a
>> transparent bank, the test could have been forged.
> 
> I do not believe so. The transparency of the bank is completely
> orthogonal to whether the bank can be authenticated as a particular type
> of bank.
> 

Yes, of course. But if I have access to the programs memory, I can patch
the test if(opaque_bank(my_bank)) go_on();else abort(); to if(true) ...
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