Hi Russ,
I agree that S/MIMEv3 should minimize Base64 encoding when possible. As I
understand MIME, all implementations should handle binary as this is the
default unless otherwise specified.
Regards,
Aram Perez
-----Original Message-----
From: Russ Housley [mailto:housley(_at_)spyrus(_dot_)com]
Sent: Monday, March 06, 2000 7:21 PM
To: ietf-smime(_at_)imc(_dot_)org
Subject: Triple Wrapping Survey
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