[TLS] Consensus call for certificate URL extension

["Joseph Salowey (jsalowey)" <jsalowey at cisco.com>]

We need to close this open issue.  I think there are two basic options
that address the security issues that have been raised:

A) Deprecate the current extension and create a similar new extension
with the hash mandatory.

B) Make the hash mandatory in the current extension.  This should not
cause deployment problems because there are no known deployments that
make the hash optional.

In either case, we can include hash agility as described in
http://trac.tools.ietf.org/wg/tls/trac/ticket/46. If there is support in
the working group for the use case where the certificate is updated
offline then we can possibly work on a new extension in a new document
that incorporates ideas expressed on the list.

Please express you preference on the list for one of these options by
10/6/2008.

Thanks,

Joe
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