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Re: Triple Wrapping Survey



Msft versions cannot handle case #1 (I think).

Msft versions can handle case #2 without any problems.

jim schaad

>I have a few questions for implementors.  First some background, then the 

>questions.
>
>The use of S/MIMEv3 Triple Wrapping leads to the incorporation of four MIME

>encodings.  If each of these encodings uses Base64, then the overhead is 
>huge.  I am interested in ways to reduce the overhead, hopefully without 
>hurting IMAP usability.
>
>1.  Can your implementation handle
>	MIME( SignedData (EnvelopedData (SignedData ( MIME ))) ?
>
>The outer SignedData has the OID for EnvelopedData in the content type, not

>id-data.
>The EnvelopedData has the OID for SignedData in the content type, not id-data.

>The inner Signed Data has the id-data OID in the content type.
>
>2.  Can your implementation handle MIME without Base64 encoding?  I am 
>interested in using "binary" instead of Base64 to reduce the overhead.
>
>Russ
>
>
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