Re: [MLS] Some data

nalini elkins <nalini.elkins@e-dco.com> Thu, 17 October 2019 01:53 UTC

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From: nalini elkins <nalini.elkins@e-dco.com>
Date: Wed, 16 Oct 2019 18:53:01 -0700
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To: Richard Barnes <rlb@ipv.sx>
Cc: Messaging Layer Security WG <mls@ietf.org>
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Subject: Re: [MLS] Some data
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Richard,

>I'm currently working on extracting "transcripts" of
init/add/remove/message events, with the idea that they could be fed into a
simulator attached to
> some library to generate counts of actual crypto operations.  But it
would also be easy to extract summary statistics, such as the inter-arrival
rates
> for Adds / Removes, Add:Remove ratios, etc.

I don't know if this is appropriate but if you have per packet payload (or
payloads which can be distinguished that way),  it is possible to use the
TXT2PCAP program of Wireshark to create a PCAP or packet trace.

Once you have a packet trace, then it is quite easy to do summaries, flows,
etc.  I remember doing this with the early TLS1.3 code.

It this seems useful, I am happy to help.

Nalini


On Tue, Oct 15, 2019 at 8:57 AM Richard Barnes <rlb@ipv.sx> wrote:

> Hey all,
>
> I've managed to extract histories for a collection of Webex Teams groups,
> a total of 950 groups (including 1-1 conversations) ranging in size from 2
> to 5000 members.
>
> What data would people be interested in understanding from this data set?
>
> I'm currently working on extracting "transcripts" of
> init/add/remove/message events, with the idea that they could be fed into a
> simulator attached to some library to generate counts of actual crypto
> operations.  But it would also be easy to extract summary statistics, such
> as the inter-arrival rates for Adds / Removes, Add:Remove ratios, etc.
>
> One caveat is that Webex Teams allows self-add and self-remove, in
> addition to adds/removes initiated by someone in the group.  Self-adds
> account for ~6% of all adds, but self-removes (leaves) are 98% of all
> removes.  The latter might be an artifact of "server-initiated" removes
> being reflected as self-removes, but of course server-initiated removes
> have similar issues w.r.t. MLS.
>
> --Richard
> _______________________________________________
> MLS mailing list
> MLS@ietf.org
> https://www.ietf.org/mailman/listinfo/mls
>


-- 
Thanks,
Nalini Elkins
President
Enterprise Data Center Operators
www.e-dco.com