Re: Random number generation
From: Douglas Wikström (douglas_at_sics.se)
Date: 06/27/03
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Date: Fri, 27 Jun 2003 18:20:23 +0200
> > I am just curious :-). Is there a rigorous security analysis of this
> > construction.
>
> It's CTR mode. You're new here right?
You are right, I misread the Simons post (my appologies to Simon :-). No
Tom. It has been a while though. You have not changed.
> Essentially CTR mode is as secure as the underlying cipher is to known
> and chosen plaintext attacks.
What you are saying is not true in general. There are pathological
counter examples. You need other properties from the underlying system.
/D
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