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Re: Matter of DN and what's possible

From: Jürgen Jakobitsch <j.jakobitsch@semantic-web.at>
Date: Mon, 09 Jan 2012 20:44:06 +0100 (CET)
To: Kingsley Idehen <kidehen@openlinksw.com>
Cc: public-xg-webid@w3.org
Message-ID: <930193f7-e183-4c04-a9c9-47493495590d@zcs>
hi, 

thanks for confirmation.

if i was asked, i'd say i have no problem with the below samples.

1. they apparently open a lot of possibilities.
2. they remind me of well accepted relation between a foaf:ProfileDocument and a foaf:Person
   (it would be something like : cert:ProfileDocument and cert:Claim)

weather all these triples come from a describe (construct) query or not 
can't really be distinguished (and doesn't matter), since the outcome is one of the known rdf serializations anyway.

wkr j


----- Original Message -----
From: "Kingsley Idehen" <kidehen@openlinksw.com>
To: public-xg-webid@w3.org
Sent: Monday, January 9, 2012 8:12:56 PM
Subject: Re: Matter of DN and what's possible

On 1/9/12 1:53 PM, Jürgen Jakobitsch wrote:
> hi,
>
> just a short in-between-question :
>
> are we talking about something like the bug i fixed today (see one of my last mails)
> with this example-uri :
>
> webIDClaim (in the cert): http://2sea.org/sea.rdf#j
>
> where the location of document is @ http://2sea.org/sea.rdf but there are only statements about http://2sea.org/sea.rdf,
> in which case i could verify the claim, if i had two fields in the cert, the location of the document and resource which is
> to be verified?

Yes, so you are posing the same question, but without using a sparql 
constuct URL. Basically, in SAN you could have the following:

1. http://2sea.org/sea.rdf#j  -- a HTTP URI based Subject Name
2. http://2sea.org/sea.rdf-- a HTTP URL based descriptor (information) 
resource address.

Also what about the following in SAN:

1. http://2sea.org/sea.rdf#j  -- a HTTP URI based Subject Name
2. http://2sea.org/something/sea.rdf-- a HTTP URL based descriptor 
(information) resource address that still describes 
<http://2sea.org/sea.rdf#j> .

Or:
1. mailto:j@2sea.org -- a mailto: scheme URI based Subject Name
2. http://2sea.org/something/sea.rdf-- a HTTP URL based descriptor 
(information) resource address that still describes <mailto:j@2sea.org> .


Kingsley

> wkr j
>
> ----- Original Message -----
> From: "Kingsley Idehen"<kidehen@openlinksw.com>
> To: public-xg-webid@w3.org
> Sent: Monday, January 9, 2012 7:42:27 PM
> Subject: Re: Matter of DN and what's possible
>
> On 1/9/12 1:35 PM, Henry Story wrote:
>> Ok. So now you have two URLs where before we had one. That is why the previous talk about URIs being a luxury does not make sense. Your solution requires more of them.
>>
>>>>>>   And if it is a URL then why is that not just the place of a WebID then?
>>>>
>>>>   Because you will ultimately quibble about its complexity.
>> Why, I have always supported multiple SANs in the certificate. No issue there.
>>
>    One point re. the above. Imagine the following scenario:
>
> I have a sparql construct URL as my address (and compacted using a
> shortener), and a HTTP URI based Name as the subject Name. Both URIs
> placed in SAN of my x.509 cert. Would your verifier work? Do you deem
> this acceptable re. WebID spec as it currently stands?
>
> Note: the SPARQL URL resolves to a description graph. The other URI is
> the Subject described by said graph.
>


-- 

Regards,

Kingsley Idehen	
Founder&  CEO
OpenLink Software
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Received on Monday, 9 January 2012 19:45:15 GMT

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