On Friday 16 January 2004 2:01 am, Greg Wooledge wrote:
wayne (wayne(_at_)midwestcs(_dot_)com) wrote:
For a quarter million dollars, you can build a DES cracking system
that will churn out the answer in a day or so. See:
http://www.eff.org/Privacy/Crypto/Crypto_misc/DESCracker/
So by the time SPF is fully adopted a PDA will be able to do it at the touch
of a button...
But seriously, if a crypto mechanism is included (and I'm not convinced it is
a good idea) then surely it will need to be extensible enough to ensure that
it does not get obsoleted simply by Moore's law. Something with arbitrary key
lengths is important.
I don't think forwarding should be reliant on any optional information needing
to published in an SPF record just to support it. Many site's will not bother
publishing these keys - they will not care to help forwarders - and hence
forwarding will break.
As far as other purposes are concerned, surely the term 'feature creep'
applies.
- Dan
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