Stephen Farrell wrote:
Section 3.3.3 includes 512 bit rsa as a MUST. I think that that
might be an error. Is there really any need for anything smaller
than 1024 in any case?
Isn't there something of a calculation which equates effort to
break over time? DKIM lifetimes are normally quite short, so
smaller keys are not implausible, especially given the level
of protection DKIM actually provide (weakest link: DNS).
Anecdotally, I have noticed there is a perceivable performance
difference between 512 and 1024. IIRC, 768 seems still imperceptible.
Mike
_______________________________________________
NOTE WELL: This list operates according to
http://mipassoc.org/dkim/ietf-list-rules.html