>>  - Change the negotiation so that user name is not exchanged in the clear
>>  - Change key exchange to do PFS

>TLS-pwd already supports both of these. It also supports ECC too,
>which is problematic with the current SRP protocol.

I agree: Instead of modifying SRP I would prefer introducing a new PAKE
scheme. 
On CFRG I recently submitted a draft on requirements for such schemes
(https://www.ietf.org/mail-archive/web/cfrg/current/msg07005.html).

Or to be even more flexible - how about defining a generic way to include
PAKE in TLS to prevent a whole bunch of ExtensionTypes and CipherSuites by
merging them into one "PAKE_Auth"?

Best,

Jörn



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