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Replay counter sizes: AH vs ESP -Reply



>>> "Marcus Leech" <mleech@nortel.ca> 12/05/96
11:31am   wrote:>>>
I note in reviewing:

draft-ietf-ipsec-esp-des-md5-03.txt

and

draft-ietf-ipsec-ah-hmac-md5-04.txt

That the counter sizes are different, even though the
underlying integrity
  mechanisms are identical (HMAC MD5).  I can see
this costing extra
  code in implementations, which wouldn't be
necessary if the counters
  were of the same size.

Marcus,
     Both Derrell Piper and I raised the same question
without getting any response.  I suggest that unless
someone can provide reasonable argument to justify
the difference of the replay counter sizes, we should
make them the same.

cj_lee@novell.com


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