W3C home > Mailing lists > Public > public-xg-webid@w3.org > January 2012

Re: WebID equivalence

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Tue, 03 Jan 2012 21:39:12 -0500
Message-ID: <4F03BBD0.8070102@openlinksw.com>
To: public-xg-webid@w3.org
On 1/3/12 8:27 PM, Mo McRoberts wrote:
> On 4 Jan 2012, at 00:56, Kingsley Idehen wrote:
>
>> Use a Name to do things that fit the Name Role. Don't use was many think is an Address as a Name, certainly not at first blush irrespective of deeper prowess. Use an Address for functionality folks intuitively associate with addresses e.g., data access. Use Names to Identity things.
> I a feeling this paragraph is meant to be fundamental to your point, but I honestly can't make head nor tail of it.

Use a Name to Name things. Does an HTTP URI instinctively come across to 
the typical Web Developer as a Name? It doesn't. It comes across an an 
Address. The level of indirection is no more than 1.
>
> It's probably not worth the hassle of point out that both DN and subjectAltName are called “names” in X.509.

You have a generic Name and a function specific Name (e.g. an Address). 
In the CN examples I've given you have examples of two address types 
i.e., http: scheme and mailto: scheme. The intuition of "Address" is 
there. Likewise, the intuition of a generic name re. Subject Alternative 
Name.

>   Only one (and even then, only parts of it) — the DN — is readily presented in interfaces, and where it is, it’s done so as a label.

That isn't my the core issue here. Basically, the use as label doesn't 
determine its semantics. Why are there examples of CN's with URLs all 
over the place then?

> The subjectAltName is an implementation device, unlike host-meta is or the Link HTTP response header.

It's a slot for Names in the generic sense. You can use URIs as well as 
other identifiers in this slot. Also please remember a URI != HTTP URI, 
solely.

[SNIP]

-- 

Regards,

Kingsley Idehen	
Founder&  CEO
OpenLink Software
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Received on Wednesday, 4 January 2012 02:39:41 GMT

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