DR 608: specific security mechanisms

I propose that, as suggested by by Henryk in [1], we list the
following protocols: SSL and S/MIME.

              The XP specification should not preclude the use of XP
              messaging over popular security mechanisms
              (SSL and S/MIME).

Jean-Jacques.

[1]
http://lists.w3.org/Archives/Public/xml-dist-app/2000Nov/0043.html