LTPA authentication : exporting/impotring keys

Hi,

I would like to use LTPA Auth between a custom application and Domino. The custom application is in charge of building the cookie. But to build it I need to have access to the keys.

Does someone knows how to export the keys stored in the domino configuration ? Or knows something about the Websphere export format so I could genrate the keys outside and import them ?

Thanks for all

Fabrice Cêtre