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Re: IDEA licensing vs RSA licensing (Re: What do we have to do today?)

1997-11-01 12:20:50
  Anyway, I agree with the people who are arguing for MUST for 3DES,
  DSA, Elgamal; and SHOULD for RSA, IDEA, MD5, and MAY for the rest.
This is my plan. I'm still open toward making CAST5 a SHOULD (in fact, that
is my personal preference), but I hear more reasons for MAY than SHOULD.

A very basic reason: SHOULD is only for things that are strongly desired by
all implementations. If we have a strong algorithm for a MUST and another
strong algorithm for a SHOULD, I see no point to tossing another SHOULD in.
Many developers try to implement all SHOULD-level specs, and this would
cause needless software bloat with little definable benefit.

And, again, I would strongly lobby against any MAY list. A list of IDs for
all known algorithms identifiers is enough.

--Paul Hoffman, Director
--Internet Mail Consortium