"Service ticket", not "session ticket". Sorry.

/Fredrik

--
Fredrik Jönsson, M.Sc.
System Architect
KTH/UF/ITA/Infosys
E-mail: [email protected]<mailto:[email protected]>
Phone: +46 8 790 6603

10 mars 2016 kl. 20:07 skrev Fredrik Jönsson <[email protected]<mailto:[email protected]>>:

Not quite. The TGT is the token which authenticates the user to the CAS server 
itself, after initial sign in. It is used to get session tickets for individual 
services with which a user can authenticate to the services. Thus, the TGT does 
not have to be exposed to any other service than the CAS server (if configured 
properly) which is a matter of security.

The service registry validates which services are allowed to use the CAS server 
for ticket validation, but that is only by checking the URL passed as a service 
parameter, no tickets are involved.

/Fredrik

--
Fredrik Jönsson, M.Sc.
System Architect
KTH/UF/ITA/Infosys
E-mail: [email protected]<mailto:[email protected]>
Phone: +46 8 790 6603

10 mars 2016 kl. 19:41 skrev Ray Bon <[email protected]<mailto:[email protected]>>:

Yan,

There are two parts involved; user authentication, and service registry.
The TGT says user is authenticated.
The ST says this service is allowed to use CAS for user authentication. Every 
service that wants to use CAS must be registered in the CAS services database.

Ray

On Tue, 2016-03-08 at 06:41 -0800, Yan Zhou wrote:
Hi there,

This is a beginner question, but I cannot seem to find answer anywhere.

Why is there a need for service ticket, it has to be validated every time a 
service is requested through CAS?  If user has a valid TGT, why would CAS 
server ever deny him trying to access a service?

Thanks,
Yan

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