Re: Using Twitter as an IdP space for WebID

On 10/29/11 6:31 AM, Michael Brunnbauer wrote:
> Hello Kingsley,
>
> this is a good Idea but I would call this TwitterID and not WebID.

No, its an InterWeb scale identifier that's verifiable using the WebID 
verification (authentication) protocol.

<http://twitter.com/kidehen#this> is a URI associated with an object 
accessible from Twitter's Web accessible data space.

> What is the connection to linked data ?

The aforementioned URI is de-referencable. It resolves to a structured 
representation it the URI referents description.

> I thought WebID was FOAF + SSL.

No.

FOAF is an option re. vocabulary that defines the structure of a profile 
oriented data objects. You can use a FOAF based object craft a data 
structure that provides relations that ultimately connect a WebID to a 
Public Key or even an X.509 certificate hash i.e., Fingerprint .

Failing to separate concept, data representation syntax, and data 
serialization formats is still making matters a little confusing re. 
Linked Data.

> Or is WebID about promoting the use of X.509 certificates in general ?

No, it is about verifiable identity via identifiers via exploitation of:

1. existing InterWeb infrastucture
2. trust logic and structured data representation.

>
> You are using http://twitter.com/{your-twitter-handle}#this
> Are you again creating URIs in other peoples namespaces ?

How can I create a URI in other people's namespaces associated with 
their data spaces? I am a URI to identify a chunk of network accessible 
data in a manner that's distinct from the representation of said chunk 
of data.
>   Maybe you should
> omit the hashtag in the subject alternative name.

Of course note, a chunk of data (i.e., a data object) is endowed with 
the following fundamental characteristics:

1. an Identifier (a URI)
2. Representation (a graph pictorial in EAV/SPO triple form)
3. an Access Address (typically a function specific identifier e.g., a URL).

I hope this clears up matters for you :-)


Kingsley
>
> Regards,
>
> Michael Brunnbauer
>
> On Fri, Oct 28, 2011 at 05:07:27PM -0400, Kingsley Idehen wrote:
>> All,
>>
>> Here is a guide that shows how you can make a security token with a
>> WebID watermark that leverages Twitter as an IdP space.
>>
>> This is about persisting Cert. Fingerprints to a Tweet and then
>> leveraging Twitter's API within our WebID authentication handler which
>> includes the option to perform a fingerprint comparison where the
>> modulus and exponent comparison is typically performed.
>>
>> Link: http://goo.gl/FFsjv .
>>
>> -- 
>>
>> Regards,
>>
>> Kingsley Idehen	
>> President&   CEO
>> OpenLink Software
>> Company Web: http://www.openlinksw.com
>> Personal Weblog: http://www.openlinksw.com/blog/~kidehen
>> Twitter/Identi.ca handle: kidehen
>> Google+ Profile: https://plus.google.com/112399767740508618350/about
>> LinkedIn Profile: http://www.linkedin.com/in/kidehen
>>
>>
>>
>>
>>
>>
>
>


-- 

Regards,

Kingsley Idehen	
President&  CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: kidehen
Google+ Profile: https://plus.google.com/112399767740508618350/about
LinkedIn Profile: http://www.linkedin.com/in/kidehen