Kerberos support in XIFF

Hi,

I am building a flex AIR application using XIFF apis whereby the application must support single-sign-on over Kerberos. Openfire supports Single-Sign-On using Kerberos, I could figure out Kerberos support in XIFF apis inorder to do Single-Sign-On.

Please help me know if Kerberos is supported in XIFF, else advice a suitable approach.

Regards,

Sagar