Re: [therightkey] [cabfpub] Updated Certificate Transparency + Extended Validation plan
Rob Stradling <rob.stradling@comodo.com> Mon, 10 February 2014 10:13 UTC
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Date: Mon, 10 Feb 2014 10:13:36 +0000
From: Rob Stradling <rob.stradling@comodo.com>
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Cc: "therightkey@ietf.org" <therightkey@ietf.org>, CABFPub <public@cabforum.org>
Subject: Re: [therightkey] [cabfpub] Updated Certificate Transparency + Extended Validation plan
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On 08/02/14 13:32, Ben Laurie wrote: > On 5 February 2014 18:21, Rob Stradling <rob.stradling@comodo.com> wrote: >> On 05/02/14 17:49, Adam Langley wrote: >>> >>> On Wed, Feb 5, 2014 at 12:26 PM, Rob Stradling <rob.stradling@comodo.com> >>> wrote: >>>> >>>> Presumably it's somewhere between 10 and 31 days, since 1 SCT is >>>> acceptable >>>> for Stapled OCSP and the BRs permit OCSP Responses to be valid for up to >>>> 10 >>>> days. >>> >>> >>> The speed at which we need to distrust a log depends on the minimum >>> number of SCTs actually, which is why allowing a single SCT in stapled >>> OCSP responses is such a large concession. If the minimum number of >>> SCTs were two then the pressure to distrust a log (and the pressure on >>> the logs) would be dramatically reduced because compromising one log >>> wouldn't be sufficient. >>> >>>> Do you still think [1] is a good plan? >>> >>> >>> Sure, if any CAs are willing to do it now :) >> >> >> I think "servers could just download their refreshed certificate over HTTP >> periodically and automatically" is the showstopper at the moment. Yes they >> could, but I'm not aware of any server that actually implements such a >> feature. > > Work is under way for Apache: https://github.com/trawick/ct-httpd/. That looks like great work, but AFAICT it's only for fetching SCTs from CT Logs. I was talking about the lack of any mechanism in popular webserver software for automatically fetching and installing certificates from CAs. In particular: a short-duration certificate that reuses the same public key as the previous certificate. -- Rob Stradling Senior Research & Development Scientist COMODO - Creating Trust Online
- [therightkey] Updated Certificate Transparency + … Ben Laurie
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Adam Langley
- Re: [therightkey] [cabfpub] Updated Certificate T… Ryan Sleevi
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Adam Langley
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Ryan Sleevi
- Re: [therightkey] [cabfpub] Updated Certificate T… Adam Langley
- Re: [therightkey] [cabfpub] Updated Certificate T… Adam Langley
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Adam Langley
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Adam Langley
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Adam Langley
- Re: [therightkey] [cabfpub] Updated Certificate T… Ben Laurie
- Re: [therightkey] [cabfpub] Updated Certificate T… Ryan Sleevi
- Re: [therightkey] Updated Certificate Transparenc… Wayne Thayer
- Re: [therightkey] [cabfpub] Updated Certificate T… Ryan Sleevi
- Re: [therightkey] [cabfpub] Updated Certificate T… Wayne Thayer
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Ryan Sleevi
- Re: [therightkey] [cabfpub] Updated Certificate T… Wayne Thayer
- Re: [therightkey] [cabfpub] Updated Certificate T… Ryan Sleevi
- Re: [therightkey] [cabfpub] Updated Certificate T… Wayne Thayer
- Re: [therightkey] [cabfpub] Updated Certificate T… Ryan Sleevi
- [therightkey] Thoughts on reducing SCT sizes (was… Rob Stradling
- Re: [therightkey] Updated Certificate Transparenc… Ben Laurie
- Re: [therightkey] [cabfpub] Updated Certificate T… Rob Stradling
- Re: [therightkey] EXTERNAL: Re: [cabfpub] Updated… Mehner, Carl
- Re: [therightkey] Updated Certificate Transparenc… Rob Stradling
- Re: [therightkey] Updated Certificate Transparenc… Adam Langley
- Re: [therightkey] [cabfpub] Thoughts on reducing … Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Jeremy Rowley
- Re: [therightkey] [cabfpub] Updated Certificate T… Carl Wallace
- Re: [therightkey] Updated Certificate Transparenc… Paul Hoffman
- Re: [therightkey] Updated Certificate Transparenc… Adam Langley
- Re: [therightkey] [cabfpub] Updated Certificate T… Rob Stradling
- Re: [therightkey] Updated Certificate Transparenc… Paul Hoffman
- Re: [therightkey] Updated Certificate Transparenc… Rob Stradling
- Re: [therightkey] [cabfpub] Updated Certificate T… Rob Stradling
- Re: [therightkey] Updated Certificate Transparenc… Rick Andrews
- Re: [therightkey] Updated Certificate Transparenc… Adam Langley
- Re: [therightkey] [cabfpub] Updated Certificate T… Ryan Sleevi
- Re: [therightkey] [cabfpub] Updated Certificate T… michal.proszkiewicz
- Re: [therightkey] Updated Certificate Transparenc… Ben Laurie
- Re: [therightkey] [cabfpub] Updated Certificate T… Ben Laurie
- Re: [therightkey] [cabfpub] Updated Certificate T… Ben Laurie
- Re: [therightkey] Updated Certificate Transparenc… Ben Laurie
- Re: [therightkey] [cabfpub] Updated Certificate T… Rob Stradling
- Re: [therightkey] [cabfpub] Updated Certificate T… Ben Laurie
- Re: [therightkey] [cabfpub] Updated Certificate T… Rob Stradling
- Re: [therightkey] Updated Certificate Transparenc… Rick Andrews
- Re: [therightkey] [cabfpub] Updated Certificate T… Chema López González
- Re: [therightkey] Updated Certificate Transparenc… Ben Laurie
- Re: [therightkey] [cabfpub] Updated Certificate T… kirk_hall@trendmicro.com
- Re: [therightkey] [cabfpub] Thoughts on reducing … Ben Laurie
- Re: [therightkey] [cabfpub] Thoughts on reducing … Tim Moses
- Re: [therightkey] [cabfpub] Thoughts on reducing … Ben Laurie
- Re: [therightkey] [cabfpub] Thoughts on reducing … Daniel Kahn Gillmor
- Re: [therightkey] [cabfpub] Thoughts on reducing … Ben Laurie
- Re: [therightkey] [cabfpub] Thoughts on reducing … Daniel Kahn Gillmor
- Re: [therightkey] [cabfpub] Updated Certificate T… Rob Stradling
- Re: [therightkey] [cabfpub] Updated Certificate T… i-barreira
- Re: [therightkey] [cabfpub] Updated Certificate T… Rob Stradling
- Re: [therightkey] [cabfpub] Updated Certificate T… Mat Caughron
- Re: [therightkey] [cabfpub] Updated Certificate T… Mat Caughron