On Wed, Mar 28, 2012 at 2:16 PM, Eric Rescorla <ekr@...> wrote:
The SCSV in RFC 5746 was required to avoid downgrade attacks
by simulating faulty extension processing. However, in the case
of this draft, an SCSV does not prevent downgrade attacks, so
there is no reason not to use an extension.
The first reason is extracted from your document :
"An extension is not
suitable as extension-intolerance is one form of incompatibility"