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Re: [openpgp] AEAD Chunk Size

Werner Koch <wk@gnupg.org> Tue, 19 March 2019 10:05 UTC

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From: Werner Koch <wk@gnupg.org>
To: "Neal H. Walfield" <neal@walfield.org>
Cc: Bill Frantz <frantz@pwpconsult.com>, openpgp@ietf.org
References: <r480Ps-10143i-149CE78B9B3A43A29B3D767B6660A08D@Williams-MacBook-Pro.local> <87r2b348z5.fsf@wheatstone.g10code.de> <87ftrji7sr.wl-neal@walfield.org>
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Date: Tue, 19 Mar 2019 11:01:20 +0100
In-Reply-To: <87ftrji7sr.wl-neal@walfield.org> (Neal H. Walfield's message of "Tue, 19 Mar 2019 09:32:04 +0100")
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Subject: Re: [openpgp] AEAD Chunk Size
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On Tue, 19 Mar 2019 09:32, neal@walfield.org said:

> I agree with you that AEAD + signed chunks is even better.  But,
> streaming AEAD still provides a significant improvement relative to
> the status quo: it protects against EFAIL-style exfiltration attacks.

Neal: Please stop spreading false information.  Our MDC already protects
against this (old) kind of attack.  We implemented the new AE algorithms
merely for cryptographic cleanness and speed.


Shalom-Salam,

   Werner

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