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Re: [TLS] draft-rescorla-tls-subcerts-01

"Fossati, Thomas (Nokia - GB/Cambridge, UK)" <thomas.fossati@nokia.com> Sat, 22 April 2017 20:43 UTC

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From: "Fossati, Thomas (Nokia - GB/Cambridge, UK)" <thomas.fossati@nokia.com>
To: "Salz, Rich" <rsalz@akamai.com>, Ilari Liusvaara <ilariliusvaara@welho.com>, Hannes Tschofenig <hannes.tschofenig@gmx.net>
CC: "<tls@ietf.org>" <tls@ietf.org>, "Fossati, Thomas (Nokia - GB/Cambridge, UK)" <thomas.fossati@nokia.com>
Thread-Topic: [TLS] draft-rescorla-tls-subcerts-01
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Date: Sat, 22 Apr 2017 20:43:35 +0000
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Subject: Re: [TLS] draft-rescorla-tls-subcerts-01
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On 21/04/2017 16:50, "Salz, Rich" <rsalz@akamai.com> wrote:
> > Speaking as one of the co-authors of [1]: it is not completely clear to me
> > what is the limitation in CT that would prevent it to cope with the
> > pervasive use of short-term certificates.  Can anyone shed a light on this?
> 
> I believe the concerns are scaling log servers and perhaps needing to
> "rotate" them if, say, 90% of their tree is invalid in a year.

Thanks Rich.  I need to double check that, but I guess there are remedies for
the issues you mention -- e.g., adding more logs / having separate logs for
very short term stuff.

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