Re: [TLS] A closer look at ROBOT, BB Attacks, timing attacks in general, and what we can do in TLS
Ilari Liusvaara <ilariliusvaara@welho.com> Fri, 15 December 2017 18:34 UTC
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Date: Fri, 15 Dec 2017 20:34:24 +0200
From: Ilari Liusvaara <ilariliusvaara@welho.com>
To: Eric Rescorla <ekr@rtfm.com>
Cc: Watson Ladd <watsonbladd@gmail.com>, "tls@ietf.org" <tls@ietf.org>
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Subject: Re: [TLS] A closer look at ROBOT, BB Attacks, timing attacks in general, and what we can do in TLS
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On Fri, Dec 15, 2017 at 10:15:23AM -0800, Eric Rescorla wrote: > On Fri, Dec 15, 2017 at 10:12 AM, Watson Ladd <watsonbladd@gmail.com> wrote: > > > We can force a rotate of all certs in 90 days, and I don't think most > > people will notice. > > > > Unfortunately, there are plenty of longterm certificates with lifetimes >> > 90 days. Yes, currently the lifetime limit for public certificates is 39 months, and will be reduced to 825 days (~27 months) effective March 2018. Then there is backdating to consider. It was seen in both MD5 and SHA-1 deprecations. So maximum certificate lifetime sets limit on how fast features can be flushed out. And then there would be enormous amounts of endpoints not supporting anything better. Those would have to be upgraded. All in all, a real mess. -Ilari
- [TLS] A closer look at ROBOT, BB Attacks, timing … Colm MacCárthaigh
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Watson Ladd
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Colm MacCárthaigh
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Hanno Böck
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Colm MacCárthaigh
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Yoav Nir
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Nikos Mavrogiannopoulos
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Andrei Popov
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Kathleen Moriarty
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Hanno Böck
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Andrei Popov
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Eric Rescorla
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Watson Ladd
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Eric Rescorla
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Eric Rescorla
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Andrei Popov
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Tim Hollebeek
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Andrei Popov
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Tim Hollebeek
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Martin Rex
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Martin Rex
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Peter Gutmann
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Ilari Liusvaara
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Hubert Kario
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Hubert Kario
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Colm MacCárthaigh
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Hubert Kario
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Colm MacCárthaigh
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Hubert Kario
- Re: [TLS] A closer look at ROBOT, BB Attacks, tim… Colm MacCárthaigh