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Re: [TLS] [Cfrg] 3DES diediedie

Eric Rescorla <ekr@rtfm.com> Thu, 25 August 2016 13:34 UTC

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From: Eric Rescorla <ekr@rtfm.com>
Date: Thu, 25 Aug 2016 06:33:28 -0700
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To: david wong <davidwong.crypto@gmail.com>
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Cc: "cfrg@irtf.org" <cfrg@irtf.org>, "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] [Cfrg] 3DES diediedie
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On Thu, Aug 25, 2016 at 6:21 AM, david wong <davidwong.crypto@gmail.com>
wrote:

> I don't think a RFC deprecating them is a good idea:
>
> * TLS 1.3 is almost here and is already doing that
> * what browser still use 64-bit ciphers? Who lets his "old" browser open
> for 75 hours?
>

Actually, I believe that all the major browsers support 3DES.

-Ekr

* in other uses of TLS. It's not always obvious if there is a possible
> beast style attacks. And their implementation might really well not be
> vulnerable (due to limiting number of messages according to specs)
>
> David
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