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Re: rfc791 coming up to 40 years ... what to do (remember, celebrate, ...?)

Michael Thomas <mike@mtcc.com> Thu, 25 March 2021 22:03 UTC

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Subject: Re: rfc791 coming up to 40 years ... what to do (remember, celebrate, ...?)
To: Nico Williams <nico@cryptonector.com>, Joseph Touch <touch@strayalpha.com>
Cc: ietf@ietf.org
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From: Michael Thomas <mike@mtcc.com>
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Date: Thu, 25 Mar 2021 15:02:58 -0700
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On 3/25/21 2:39 PM, Nico Williams wrote:
> On Thu, Mar 25, 2021 at 02:22:51PM -0700, Joseph Touch wrote:
>> Just wanted to know what we need to eventually fix…
> It's water under the bridge.  Transport mode IPsec isn't going to take
> off.  Among other things, having an out of band KE is not really a
> selling point anymore -- everything uses TLS (or DTLS, or whatever) now
> and that's that.
>
> Doing cryptographic session protection closer to the application layer
> won out, and always was going to because it's by far the most available,
> portable, and flexible option for application developers.
>
> Going back in time to make IPsec perfect from day one might not produce
> a different result.

We ended up with tortured history of DTLS because TLS had so thoroughly 
won that it was better in the eyes of many to invent a UDP alternative 
to TLS so that SIP could use TLS. Of course the joke is that UDP based 
SIP is probably a thing of the past because of bloat.

Mike

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