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Re: [AGENDA] W3C Credentials CG Call Tue, February 13, 12 noon ET

From: Steven Rowat <steven_rowat@sunshine.net>
Date: Tue, 13 Feb 2018 08:45:05 -0800
To: Manu Sporny <msporny@digitalbazaar.com>, public-credentials@w3.org
Message-ID: <f98dce28-38cd-bd1f-b835-e1ded41d5a15@sunshine.net>
On 2018-02-13 6:07 AM, Manu Sporny wrote:
> On 02/12/2018 03:27 PM, Steven Rowat wrote:
>> So...perhaps ODRL can be integrated somehow with the DID now?
> 
> Hmm, no, different technologies for different purposes. Fundamentally:

Thank you very much for the concise summary. I understand now that 
ODRL happens at a different place.

But I'm still foggy on your description of what makes LD-Object 
Capabilities different from what ODRL does (see next).

> LD Object Capabilities can be used as tokens where an entity can
> cryptographically prove that an entity granted them the authority to
> perform a class of actions in a software system.

But isn't what ODRL specifies the same as this? I.e.: "prove that an 
entity granted them the authority to perform a class of actions in a 
software system."

Is the difference that ODRL is for granting authority in a different 
software system? One that's at a different logical level?


Steven

> 
> ODRL is useful as a mix-in for Verifiable Credentials. For example, if a
> Verifiable Credential claims that you have a Netflix subscription, and
> your subscription is expressed via ODRL, then you can use that
> Verifiable Credential to get a Capability from Netflix that will allow
> you to stream a Netflix movie on any device in the world w/o having to
> log in (you will still need to prove, via your DID, that you are sitting
> in front of that device).
> 
> So, yes, all these things do fit together, but perhaps not in the way
> that you were thinking. ODRL is not a replacement for Object Capabilities.
> 
> -- manu
> 
Received on Tuesday, 13 February 2018 16:47:58 UTC

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