UTF8 Concerns

Hi there,

The latest ESS document just posted to the list,
draft-ietf-smime-ess-02.txt, contains the following
ASN.1 type definition:

 DirectoryString ::= CHOICE {
   teletexString TeletexString (SIZE (1..MAX)),
   printableString PrintableString (SIZE (1..MAX)),
   bmpString  BMPString (SIZE (1..MAX)),
   universalString UniversalString (SIZE (1..MAX)) }

The SMIME editors may wish to consider changing this
type to something like 

 DirectoryString ::= CHOICE {
    utf8String  OCTET STRING }

or to at least add UTF8 as a choice alternative. This
type seems likely to suffer the same criticism as
the ESSPrivacyMark type. Not sure how type GeneralNames
might be perceived, since it is IMPORTED for use in
the ESS module.

Phil
-- 
Phillip H. Griffin         Griffin Consulting
asn1(_at_)mindspring(_dot_)com        ASN.1-SET-Java-Security
919.828.7114               1625 Glenwood Avenue
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