On Thu, Mar 22, 2001 at 10:59:16PM -0500, Derek Atkins wrote:
The multipart/security RFC (please excuse me for not spewing the
number) specifically forbids MIME agents from re-calcuating the
_INTERNAL_ CTE of a message. You may change the CTE of a message for
transport, but you must revert to the original CTE before security
decapsulation.
In other words, sendmail may apply a radix64 to the message provided
that the receiving sendmail reverts the radix64 back to the original
form. In other other words, multipart/security forbids the use of
this MIME feature.
This seems awfully strange. The whole point of MIME is to be able to
be permissive in these kinds of things. Having read the MIME standards a
few times, I would never have assumed that a multipart type would ever
have special restrictions like this based on subtype. In fact,
multipart/signed is not required to be implemented by agents, and they
are _explicitly_ permitted to treated like multipart/mixed, in which the
CTE can be changed if recoding is needed.
--
Taral <taral(_at_)taral(_dot_)net>
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