Re: [TLS] Suspicious behaviour of TLS server implementations

Martin Thomson <martin.thomson@gmail.com> Wed, 21 September 2016 07:25 UTC

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From: Martin Thomson <martin.thomson@gmail.com>
Date: Wed, 21 Sep 2016 17:25:11 +1000
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To: Andreas Walz <andreas.walz@hs-offenburg.de>
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Subject: Re: [TLS] Suspicious behaviour of TLS server implementations
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On 21 September 2016 at 17:21, Andreas Walz
<andreas.walz@hs-offenburg.de>; wrote:
> Do you see any argument why ignoring such trailing data would be acceptable
> (or even desirable)?

No.

Well, we exploited that to add extensions to the protocol once, so I
won't categorically rule it out, but in the case of
supported_groups/supported_curves, no good can come of ignoring
rubbish.  Of course, it's hard to point to this being harmful as well
:)