Removing Extensions from Client Hello Header

Hubert Kario hkario at
Wed Nov 13 14:48:35 UTC 2019

On Tuesday, 12 November 2019 21:22:51 CET, Benjamin Kaduk via openssl-users 
> On Tue, Nov 12, 2019 at 01:13:49PM -0700, Phil Neumiller wrote:
>> Thanks for all the useful device.  I was able to get the server to accept
>> this client hello message.
> If you're willing/able to share, it can be useful for us to 
> know what products
> are buggy in that they don't implement extensions in a proper, 
> extensible, manner
> and need to have the ClientHello extensions adjusted like this. 
>  If we have a
> list of "likely suspects" it can make diagnosing future connection issues
> easier.

contributing a fingerprint to 
also be really welcome, for the same reasons

Hubert Kario
Senior Quality Engineer, QE BaseOS Security team
Red Hat Czech s.r.o., Purkyňova 115, 612 00  Brno, Czech Republic

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