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Re: [TLS] EXTERNAL: Re: integrity only ciphersuites

Stephen Farrell <stephen.farrell@cs.tcd.ie> Tue, 21 August 2018 16:37 UTC

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To: Ted Lemon <mellon@fugue.com>, Jack Visoky <jmvisoky@ra.rockwell.com>
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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Date: Tue, 21 Aug 2018 17:37:30 +0100
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Subject: Re: [TLS] EXTERNAL: Re: integrity only ciphersuites
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On 21/08/18 17:15, Ted Lemon wrote:
> I asked you if you have any specific devices for which this is an issue.
>  Do you?   How did you determine that it was an issue?   Do you have A/B
> testing results on power consumption and/or performance of a null cipher
> suite versus encryption?

If doing such comparisons, then it's very well worth noting the
significant differences between e.g. h/w accelerated AES, vs s/w
AES vs chacha. It'd be hard to evaluate claims about difficulty
of implementation/deployment without that.

S.

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