W3C home > Mailing lists > Public > w3c-ietf-xmldsig@w3.org > July to September 2001

Re: W3C Proposed Recommendation:

From: merlin <merlin@baltimore.ie>
Date: Tue, 28 Aug 2001 13:40:58 +0100
To: "Gregor Karlinger" <gregor.karlinger@iaik.at>
Cc: "Joseph Reagle" <reagle@w3.org>, "IETF/W3C XML-DSig WG" <w3c-ietf-xmldsig@w3.org>
Message-Id: <20010828124058.59CBE43D43@yog-sothoth.ie.baltimore.com>

Hi Gregor,

I'm very strongly opposed to this. One of our goals is
human readability; Jim\20Smith Research\20&\20Development
is far from as readable as it should be. If we don't want
human readability, we should base 64 encode the DER-encoded
ASN.1 dname.

Realistically, it is a _trivial_ special case; all the
rest is RFC 2253.

Ignoring UTF-8 encoding, the current wording is:

RFC 2253 -> replace "\ " with "\20" -> replace 0x00-0x20 with "\xx"

My suggested wording is:

RFC 2253 -> replace 0x00-0x1f with "\xx" -> replacing trailing "\ " with "\20"

That's not much of a change.

Merlin

r/gregor.karlinger@iaik.at/2001.08.28/13:31:23
>Merlin,
>
>> 4.4.4 The X509Data Element (dname encoding)
>> 
>> I'd possibly suggest that instead of "compliant with RFC2253", we use
>> the text "compliant with the subset of RFC2253 described below" or
>> somesuch, because RFC2253 allows encodings that are not permitted
>> by the text that we have.
>> 
>> Is it intended that space be considered an ASCII control character; if
>> not, I'd suggest the text "\00-\1f inclusive".
>> 
>> In this case, leading and trailing ' ' should be escaped. If we want
>> to allow leading and trailing whitespace to be trimmed from dname
>> text nodes then we also need to state that a "\ " occuring at the
>> end of a dname must be replaced by "\20".
>
>To avoid all these distinctions I included the space character in the
>specified range of ASCII control characters ("\00-\20"). I would prefer
>to keep it as it is. 
>
>Liebe Gruesse/Regards, 
>---------------------------------------------------------------
>DI Gregor Karlinger
>mailto:gregor.karlinger@iaik.at
>http://www.iaik.at
>Phone +43 316 873 5541
>Institute for Applied Information Processing and Communications
>Austria
>---------------------------------------------------------------
> 
>


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Received on Tuesday, 28 August 2001 08:41:45 UTC

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