On Fri, 13 Dec 2024 at 00:30, Andrei Popov <Andrei.Popov= [email protected]> wrote:
> > - If there are significant implementations which do reuse… > > By default, servers using Windows TLS stack reuse ECDHE keys for up to 30 > sec. Reuse time can be configured or altogether disabled by the system > admin. Disabling comes at a significant performance cost (for a busy TLS > server). > I'd be interested if you have published performance data for this? Right now a typical laptop-grade CPU can do ~180,000 X25519 base multiplies per second per core (P256 around 115,000, P384 around 25,000) -- ISTM this is not a good complexity/performance tradeoff (maybe it was more beneficial in the past?) Thanks, Joe
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