Re: [TLS] Encrypt-then-MAC again (was Re: padding bug)

Peter Gutmann <p.gutmann@auckland.ac.nz> Thu, 05 December 2013 05:06 UTC

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From: Peter Gutmann <p.gutmann@auckland.ac.nz>
To: "<tls@ietf.org>" <tls@ietf.org>
Thread-Topic: [TLS] Encrypt-then-MAC again (was Re: padding bug)
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Date: Thu, 5 Dec 2013 05:06:13 +0000
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Subject: Re: [TLS] Encrypt-then-MAC again (was Re: padding bug)
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Martin Rex <mrex@sap.com> writes:

>I'm from the "don't-fix-it-if-it-ain't-broken" camp. And the less code needs 
>to be changed to adopt some useful feature, the more likely you will see it 
>being adopted for patches/maintenance. I have seen *ZERO* compelling reason 
>for switching to encrypt-then-mac in TLS. 

Uhh... what?  How have you missed ten years of attacks on TLS that take 
advantage of MtE?

Peter.