On Thu, Feb 13, 2020 at 3:48 AM Douglas Stebila <doug...@stebila.ca> wrote:
> On Feb 12, 2020, at 11:24 PM, Rob Sayre <say...@gmail.com> wrote: > > > > Would it be ok to add a rationale to the "Goals" section around backward > compatibility? I'm not sure how the compatibility points will interact with > downgrade attacks. > > For now I don't think we're envisioning anything different on downgrade > compared to current DH group negotiation. For example, a client that > prefers curve25519 but also is willing to use nistp256 should be able to > talk to a server that only supports nistp256. > This idea is what my question concerns. I'm not sure there should be a negotiation of that sort, but the WG can sort that out. thanks, Rob
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