Re: [MLS] [ratchet tree update example]

Benjamin Beurdouche <benjamin.beurdouche@inria.fr> Mon, 07 October 2019 20:17 UTC

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From: Benjamin Beurdouche <benjamin.beurdouche@inria.fr>
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Date: Mon, 7 Oct 2019 22:17:01 +0200
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To: Pascal Junod <pascalj=40snap.com@dmarc.ietf.org>
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Subject: Re: [MLS] [ratchet tree update example]
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Hi Pascal,

I think you are right, it should indeed be a single ciphertext of ps[2] under pkF.
It might be that a previous example had a blanked F, which is not the case here.

I’ll double check in the morning and fix it. :)
Thanks !

B.

> On Oct 7, 2019, at 1:09 PM, Pascal Junod <pascalj=40snap.com@dmarc.ietf.org>; wrote:
> 
> Hello, 
> 
> I have a quick question about the example discussed through the "Ratchet Tree Updates" and "Synchronizing Views of the Tree" sections. 
> 
> Currently, an encryption of ps[2] under public keys of nodes C and D is described. In my opinion, it should be a single ciphertext encrypted with public key F, whose corresponding private key is known by both C and D. Or did I misunderstood something?
> 
> Best, 
> 
> Pascal
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