Hi,

I have a question about ST expiration policy. Based on my need, ST can only be 
used once and I set it to expire 30 seconds from the time it is created. 

SSO is running as seperate web app while client applications run on separate 
server. 

SSO creates ST and redirects to Client app and the filter from the client app 
sends the validate request to SSO to verify ST. This is all working great when 
there is no network delay involved. My application has global user presence.

Under certain circumstances, the users validate request is taking considerable 
time to make it back to SSO. Sometimes up to 3minutes. But this is only 10% of 
my userbase. Based on this I can not change the ST validity to 3 minutes 
because, for the 3 minute time period I will be making my application insecure 
should some one get hold of that ST. 

But I did not find any other way of securely transferring the ST to the client 
application thus minimizing the risk of compromising security. 

Any ideas please? I saw CAS comes with POST option, but in the code I see it 
only posts to a page within CAS Web app. This is acceptable to my application 
flow. 

User has to seamlessly go to the client application he is trying to reach 
without having to click again.

Thanks
Madhavi
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