Problem with SSO (Integrity Check on decrypted field failed (31))

Hi there,

I am just trying to implement SSO. I followed the instructions for SSO from here.

If I launch my Spark Client now, I get a message “Integrity Check on decrypted field failed (31)”

If I am right, this tells me, my ticket exchange does not work correctly.

My question now: Where do I start troubleshooting in this case ?

I used ktpass, I created a keytab, I created a krb5.ini, I modified my registry for ticketcaching.

The following output appears on my console (where servername is my Servername of course)

Debug is true storeKey true useTicketCache false useKeyTab true doNotPrompt true ticketCache is null isInitiator true KeyTab is C:/Programme/Openfire/resources/xmpp.keytab refreshKrb5Config is false principal is xmpp/SERVERNAME.dom.loc@DOM.LOC tryFirstPass is false useFirstPass is false storePass is false clearPass is false

principal’s key obtained from the keytab

Acquire TGT using AS Exchange

authentication failed

Integrity check on decrypted field failed (31)