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Re: [TLS] ban more old crap

Hubert Kario <hkario@redhat.com> Thu, 23 July 2015 17:14 UTC

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From: Hubert Kario <hkario@redhat.com>
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
Date: Thu, 23 Jul 2015 19:14:40 +0200
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References: <201507221610.27729.davemgarrett@gmail.com> <201507231143.46288.davemgarrett@gmail.com> <55B11EFC.6070400@cs.tcd.ie>
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Subject: Re: [TLS] ban more old crap
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On Thursday 23 July 2015 18:06:04 Stephen Farrell wrote:
> On 23/07/15 16:43, Dave Garrett wrote:
> > We should just get more serious about banning old crap entirely to
> > make dangerous misconfiguration impossible for TLS 1.3+
> > implementations.
> > 
> > Right now, the restrictions section prohibits: RC4, SSL2/3, &
> > EXPORT/NULL entirely (via min bits) and has "SHOULD" use TLS 1.3+
> > compatible with TLS 1.2, if available
> 
> A suggestion - could we remove mention of anything that
> is not a MUST or SHOULD ciphersuite from the TLS1.3 document
> and then have someone write a separate draft that adds a
> column to the registry where we can mark old crap as
> deprecated?
> 
> Not sure if it'd work though.

https://tools.ietf.org/html/rfc7525 lists 4 RECOMMENDED ciphers, 6 if you 
include ECDSA versions

-- 
Regards,
Hubert Kario
Quality Engineer, QE BaseOS Security team
Web: www.cz.redhat.com
Red Hat Czech s.r.o., Purkyňova 99/71, 612 45, Brno, Czech Republic

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