On 24 February 2017 at 16:01, Sean Turner <s...@sn3rd.com> wrote:
> So this isn’t entirely novel right I mean we did something similar wrt other 
> key schedules?

I certainly hope it isn't novel.  I'm just applying the same
technique: keep independent keys independent.

On 24 February 2017 at 16:09, Felix Günther <guent...@cs.tu-darmstadt.de> wrote:
> just to clarify: you add an additional HKDF.Expand step, not
> HKDF.Extract, right?

Yes, you are right, I should have said expand.  You need to use expand
to get the label-based separation on type.

I don't know how I got confused about that.  If we need to maintain
extract and expand in pairs (as we have already been burned by), then
I will defer to cryptographers on that.

_______________________________________________
TLS mailing list
TLS@ietf.org
https://www.ietf.org/mailman/listinfo/tls

Reply via email to