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Re: 3DES keys



> From: "Perry E. Metzger" <perry@piermont.com>
> Either way I feel more comfortable with generating the extra few bytes
> of keying material and going with separate keys -- in the long run we
> are going to be switching to longer key lengths in new block cyphers
> anyway, and its pretty clear that three keys are strictly more secure
> (if only marginally so).
>
> > And I have asked twice: what folks have implemented 3DES in hardware, so
> > we can make a sensible decision on how to generate the keys?
>
> There are a bunch of 3DES hardware implementations -- what do you need
> to know specifically?
>
Thank you for offering to do the research, Perry.  Who are the vendors?
What keying requirements do the products have?  If we specify 3 keys for
3DES, will all the products handle it?

Bill.Simpson@um.cc.umich.edu
          Key fingerprint =  2E 07 23 03 C5 62 70 D3  59 B1 4F 5E 1D C2 C1 A2