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Re: Triple Wrapping Survey

2000-03-10 00:15:57
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 


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

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.


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