On Mon, 4 Dec 2006, Ralf G. R. Bergs wrote:

> > NIST recommends to use 1024 bits.  BSI (the German one, not the
> > British) recommends 1280 bits.  Both do not really differentiate
> > between ephemeral session keys and long-term keys.  But bumping the
> 
> But it makes quite a difference how you use them... :-)
> 
> > value is easy and probably the right thing to do from a PR angle.
> 
> I doubt that it's a good idea to just change something to look good from
> a PR point of view. :-)
> 
> What I *do* consider important, tho, is that we get the Opera guys and
> Exim to agree upon what is safe and what is unsafe. What do you think
> about this?

I am not a cryptographer. If certain experts (NIST, BSI) recommend 
larger numbers than the current 768 (which came with the contributed 
code, I suppose), then I am happy to change the number without regard to 
the PR aspects. Unless somebody tells me not to, I am about to change it 
to 1024 for the next release. Or should I use 1280? 


-- 
Philip Hazel            University of Cambridge Computing Service
Get the Exim 4 book:    http://www.uit.co.uk/exim-book

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