Novell Access Manager and Web Services

Okay, this is probably not the right forum for this, but my shop uses Novell Access Manager to implement single-sign-on against our web applications. We're starting to include some REST services to support multiple applications, but it does not present to the user. Does anyone know what the best practice is for authenticating in this environement? We would like the REST service to see the logged in user as being the same user logged into the web applicaiton, passed along.