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Date: Wed, 30 Sep 2020 09:51:27 +1000
From: "Martin Thomson" <mt@lowentropy.net>
To: tls@ietf.org
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/r7TSYhxF0aZhEghmpSybmlRUw3w>
Subject: Re: [TLS] TLS 1.3 Problem?
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On Wed, Sep 30, 2020, at 01:14, Michael D'Errico wrote:
> Also, are you sure you want to do this?=C2=A0 The design of
> TLS 1.3 was supposed to make it fast, but creating a
> pseudo session ticket for every connection requiring a
> HRR and then validating and decoding it is going to be
> really slow.=C2=A0 And your data center is going to get hotter
> because your servers will be compute bound instead of
> memory bound (if they even were).

It's symmetric crypto[1].  Hardly worth noting.

[1] Mostly.  NSS wraps the symmetric key with an asymmetric key so that =
server clusters can share session ticket encryption keys without needing=
 interconnects.  But encryption or decryption only happens once per inst=
ance.

