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RFC 3709, "Internet X.509 Public Key Infrastructure: Logotypes in X.509 Certificates", February 2004

Source of RFC: pkix (sec)

Errata ID: 2679
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT

Reported By: Alexey Melnikov
Date Reported: 2010-12-22
Held for Document Update by: Sean Turner

Section 4.1 says:

LogotypeDetails ::= SEQUENCE {
   mediaType       IA5String, -- MIME media type name and optional
                              -- parameters
   logotypeHash    SEQUENCE SIZE (1..MAX) OF HashAlgAndValue,
   logotypeURI     SEQUENCE SIZE (1..MAX) OF IA5String }


The mediaType is underspecified, as no specific syntax is given.
E.g. are spaces allowed before parameters? Also, my understanding is that IA5String disallows UTF-8, while media type parameters can possibly include UTF-8 values.

I would recommend referencing ABNF from Section 4.2 of RFC 4288.

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