This does nothing to insure that the information is correct. However,
it's a nice idea, and beats the alternative of a "registration" page
that people can put the same lies on.
> What about the millions of installed browsers which don't have the business
> card authentication scheme built in? Some browsers [Enhanced Mosaic plug]
> might have plug-in security modules, but they're the exception.
Presumably, such a scheme would have use an extension header, ala the
Digest authentication method. Presumably, it would look like:
Extension: Security/Card
Servers that have plug-in and chainable modules [aws plug] could then
either use the Security/Card method if the extension line was in the
headers, or hand back the "registration" page if there was no
extension line.
<mike