[ech] TLSProxy and ECH

Stephen Farrell stephen.farrell at cs.tcd.ie
Tue Mar 21 20:40:16 UTC 2023

Hi Dmitry,

On 21/03/2023 20:24, Dmitry Belyavsky wrote:
> Dear Stephen,
> I'd consider TLSfuzzer (written in Python) for this purpose

Adding ECH to TLSfuzzer sounds like a good idea, sure, but
would that be considered sufficient when it comes time to
merge a PR that implements ECH? If the project had a longer
term plan to migrate towards using TLSfuzzer, then using
it for this purpose would for sure make sense. (And I at
least speak python badly:-)


> On Tue, 21 Mar 2023, 20:19 Stephen Farrell, <stephen.farrell at cs.tcd.ie>
> wrote:
>> Hiya,
>> My possibly incorrect understanding is that the TLSProxy
>> is a bunch of perl code used for tests, that re-implements
>> variants of the TLS handshake so they can contain e.g. badly
>> encoded messages.
>> Something like that is definitely needed to properly test
>> ECH, but I don't currently speak perl:-) So I wanted to
>> check if that perl TLSProxy code is the long term plan or
>> if it's something felt to be approaching end of life? (I'm
>> willing to try dive in to it, but don't wanna do that if
>> some other plan would be better longer term.)
>> Thoughts?
>> Thanks,
>> S.
>> --
>> ech mailing list
>> ech at openssl.org
>> https://mta.openssl.org/mailman/listinfo/ech
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