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From Colm O hEigeartaigh <>
Subject Re: JWT pre-authentication - get JWT token on service side
Date Thu, 16 Jun 2016 11:18:34 GMT
Thanks Kai. A few questions below.

On Thu, Jun 16, 2016 at 11:33 AM, Zheng, Kai <> wrote:

> 1. For issuing service ticket, the token used to do the authentication or
> a token derivation was put into the issued service ticket as authorization
> data. I'm not sure in current Kerby impl, it has done this or not. If not,
> it should be not difficult to support it, considering we have some Kerby
> authorization support now.

I can take a look at this. Can you give me some pointers in the code so
that I know where to start?

> 2. In application server side, it should be able to query and extract out
> the token encapsulated in the authorization data field in the service
> ticket. This should be doable now, because a proposal from me quite some
> ago had already been accepted by Oracle Java, as recorded in the following
> ticket, though I hadn't got the chance to verify it using latest JDK update
> like JDK8.
> JDK-8044085, our extension proposal accepted and committed: allowing
> querying authorization data field of service ticket.

The JDK service ticket only refers to SASL. If I'm just using GSS on the
service side, is it already supported? If so, how can I extract it?


> So in summary, if you want to try this, I would suggest please go ahead
> since it's doable now. Please let me know if you have other questions.
> Regards,
> Kai
> -----Original Message-----
> From: Colm O hEigeartaigh []
> Sent: Thursday, June 16, 2016 5:54 PM
> To:
> Subject: JWT pre-authentication - get JWT token on service side
> Hi all,
> For the JWT pre-authentication use-case, how can I get access to the token
> information on the service side?
> From the documentation: "The service authenticates the ticket, extracts
> the token derivation, then enforce any advanced authorization by employing
> the token derivation and token attributes"
> Is there an example in the code to look at?
> Colm.
> --
> Colm O hEigeartaigh
> Talend Community Coder

Colm O hEigeartaigh

Talend Community Coder

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