OASIS ebXML Messaging Services TC

   Date: Tue, 28 Aug 2001 09:17:00 -0700
   From: Dale Moberg <dmoberg@cyclonecommerce.com>

   Is there a standardized way of referring to
   different HTTP auth mechanisms that we could reuse
   (like a URI, OID or whatever...)?

HTTP authentication mechanisms are identified by a token, found
in a "challenge", found in the WWW-Authenticate HTTP header field.
I think "basic" and "digest" are the only ones.  See RFC 2616.

-- Dan