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Re: [TLS] WG adoption + early code point assignment: draft-mavrogiannopoulos-chacha-tls

Yoav Nir <ynir.ietf@gmail.com> Wed, 20 May 2015 13:10 UTC

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From: Yoav Nir <ynir.ietf@gmail.com>
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Date: Wed, 20 May 2015 16:10:36 +0300
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To: Nikos Mavrogiannopoulos <nmav@redhat.com>
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Cc: IETF TLS Working Group <tls@ietf.org>
Subject: Re: [TLS] WG adoption + early code point assignment: draft-mavrogiannopoulos-chacha-tls
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> On May 20, 2015, at 2:20 PM, Nikos Mavrogiannopoulos <nmav@redhat.com> wrote:
> 
> On Wed, 2015-05-20 at 14:10 +0300, Yaron Sheffer wrote:
>> At ipsecme, we had a few incompatible changes between WG adoption of our 
>> own chacha draft, and WGLC. So I would recommend against early 
>> registration altogether.
> 
> Could you summarize the changes done for ipsecme in case they are
> relevant for this draft as well?

Not much. The changes were mostly clarifications, examples, and fixing the construction of AAD for Poly1305 input for both IPsec and IKE.

We did have some TBDs in the draft over whether we would set the 32-bit salt to zero or derive it from keying material (as for GCM). We decided on the latter. That question is also open in this working group, at least for TLS 1.2.

Yoav

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