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Re: Abbreviated Tag Names (ASN.1)
- From: Olivier DUBUISSON <Olivier.Dubuisson@francetelecom.com>
- To: "Thomas B. Passin" <email@example.com>, firstname.lastname@example.org
- Date: Wed, 28 Feb 2001 16:31:48 +0100
"Thomas B. Passin" wrote:
> > > - There's no standard way to translate between asn.1 and xml, and their
> > > models are not fully congruent.
> > Here I say: "not yet"!
> > The ASN.1 Project from ITU-T is actually working (jointly with ISO) on 2
> > initiatives:
> > 1. an XML value notation for ASN.1 types (or "ASN.1 Markup Language") that
> > allow to write values by way of an XML markup whose tags are derivated
> > from the ASN.1 type names.
> > Such an XML value notation can appear in an ASN.1 module, and can be
> > used to display ASN.1 values with an XML browser.
> > When appended with an XML document header and footer, this value notation
> > turns into what could be called "XML Encoding Rules for ASN.1". This will
> > be a standard named ITU-T Recommendation X.693 | ISO/IEC 8825-4.
> I'm eagerly awaiting a URL.
We've quickly drafted a presentation at:
Of course this will be improved if we receive comments.
> > 2. an XML Schema to ASN.1 mapping that keeps all the information contained
> > in an XML Schema and translates it into equivalent ASN.1 types and subtype
> > constraints. You can then use ASN.1 standardized encoding rules such as
> > DER (that allow digital signatures and encryption, for example) or PER (to
> > very efficiently transmit data over a radio channel, for example), as well
> > associated ASN.1 tools, for data that are defined in XML.
> > This will be a standard named ITU-T Recommendation X.694 | ISO/IEC 8825-5.
> This will be very nice to have!
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