ietf-smime
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Re: CMS-03 Comments

1998-02-23 10:17:12
Phil,

Maintaining backwards compatibility with PKCS #7 v1.5 is an important goal
of many of the S/MIME WG members.  Your suggestion makes sense, but it
breaks backwards compatibility with PKCS #7 v1.5 (which uses "SET OF").  

================================
John Pawling   
jsp(_at_)jgvandyke(_dot_)com                             
J.G. Van Dyke & Associates, Inc.           
================================

At 09:18 AM 2/23/98 -0500, asn1(_at_)mindspring(_dot_)com wrote:
If authenticated attributes are to be DER encoded, they
will be subject to the sorting rules required to assure
that they are unique if a SET is used. This may lead to
unanticipated results, including interoperabilty problems.

If we are free to do as we wish here in redefining types,
I would much prefer to see 

  AuthAttributes ::= SEQUENCE OF AuthAttribute

used instead. It would allow senders to explicitly
control the order of the AuthAttribute components,
and would offer less processing overhead.

Phil



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