W3C home > Mailing lists > Public > public-credentials@w3.org > May 2016

Re: Expiry time in Data Model

From: Timothy Holborn <timothy.holborn@gmail.com>
Date: Sun, 22 May 2016 13:56:02 +0000
Message-ID: <CAM1Sok0o-m2UnSH1kJrEBftq5mftkOy1L4wuDbkwNzrKZqXWqw@mail.gmail.com>
To: David Chadwick <d.w.chadwick@kent.ac.uk>, public-credentials@w3.org
On Sun, 22 May 2016 at 23:30 David Chadwick <d.w.chadwick@kent.ac.uk> wrote:

>
>
> On 22/05/2016 13:26, Timothy Holborn wrote:
> > What about version control and therein; 'get latest'...
>
> I dont think this is needed when have an issuing time and expiry time.
> You can tell from the former which is the latest credential
>
>
If a new version is released, then the older version has expired?

Tim.H.


> regards
>
> David
> >
> > On Sun, 22 May 2016 at 22:01 Victoriano Giralt <victoriano@uma.es
> > <mailto:victoriano@uma.es>> wrote:
> >
> >     On 21/05/16 20:44, David Chadwick wrote:
> >     > You are mixing up the attribute/claim, date of birth (or similar)
> >     which
> >     > lasts forever, and the credential, which is a cryptographic digital
> >     > representation of it. This has to have an expiry time due to the
> >     > inherent weakness of the crypto.
> >
> >     You are very right, David, it is possibly me being thick because of
> the
> >     cabin pressure. I should read threads twice before responding from a
> >     plane :-) You already noted that in the thread, and you are right,
> >     signatures should be refreshed because of crypto.
> >
> >     > regards
> >
> >     double those ;-)
> >
> >     --
> >     Victoriano Giralt                             CIO
> >                                                   University of Malaga
> >     +34952131415                                  SPAIN
> >     ==================================================================
> >     Note: signature.asc is the electronic signature of present message
> >     A: Yes.
> >     > Q: Are you sure ?
> >     >> A: Because it reverses the logical flow of conversation.
> >     >>> Q: Why is top posting annoying in email ?
> >
>
>
Received on Sunday, 22 May 2016 13:56:41 UTC

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