Pascal Thubert (pthubert) writes:
> Do you have an intention to add text like this in a draft or in
> annex of a draft?

I think it will be enough for our IETF drafts to just say:

  Implementations MUST use different L2 keys when using different MIC
  lengths, as using same key with different MIC lengths might be
  unsafe (i.e., using same key for both MIC-32 and MIC-64). See IEEE
  802.15.4 Annex B.4.3 for more information.
-- 
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