Re: [TLS] I-D Action: draft-ietf-tls-negotiated-ff-dhe-10.txt

Peter Gutmann <pgut001@cs.auckland.ac.nz> Wed, 03 June 2015 08:07 UTC

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From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: Tony Arcieri <bascule@gmail.com>, Yuhong Bao <yuhongbao_386@hotmail.com>
Thread-Topic: [TLS] I-D Action: draft-ietf-tls-negotiated-ff-dhe-10.txt
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Date: Wed, 3 Jun 2015 08:07:36 +0000
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Cc: Geoffrey Keating <geoffk@geoffk.org>, TLS WG <tls@ietf.org>
Subject: Re: [TLS] I-D Action: draft-ietf-tls-negotiated-ff-dhe-10.txt
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Tony Arcieri <bascule@gmail.com> writes:

>After this draft is actually implemented in all TLS servers everywhere,
>server operators can add Java-specific errata to their configuration to work
>around the fundamental problem that DHE is breaking Java TLS handshakes.

You've got that exactly reversed, it's not "DHE is breaking Java handshakes",
it's "(Sun/Oracle's) Java is breaking DHE handshakes".  Their Java's broken
handling of DLP key sizes has been a known problem for years (and years, and
years, and years).  First Sun and then Oracle have chosen to ignore the
problem despite repeated complaints by users over a long period of time.  It
is not the IETF's job to fix a particular vendor's broken, buggy code.

>I just want DHE to diediedie.

I just want Sun/Oracle Java's broken handling of this to diediedie.  Let's see
which one happens first.

Peter.