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Re: [PATCH] RSA+DSA+ECC bundles

W-Mark Kubacki
October 23, 2013 01:08PM
Hi,

As someone about to purchase two certificates please allow me to
weight in an outside perspective:

On 2013-10-22 12:09 UTC Maxim Dounin wrote:
>
> An unwanted side effect would be that this will allow client
> certificate authentication to use certs from a server's
> certificate chain. Probably not something we want to happen.

On 2013-10-22 13:31 UTC Rob Stradling replied:
>
> Yes, that's a potentially unwanted side effect. But unfortunately,
> AFAICT, putting the intermediates into the "trusted certificates
> store" is the only way to implement this feature with OpenSSL
> <1.0.2.

Just drop the backwards-compatibility and require OpenSSL 1.0.2 or
later for that feature, just like a particular version of OpenSSL is
needed for TLS-SNI.

On 2013-10-23 00:25 UTC Maxim Dounin wrote:
>
> Given the number of problems, it might be easier to assume the
> [certificate-]chains must be the same. […]

• When you are about to get two certificates, most likely RSA+ECC, you
go for a ECC-only and a RSA-only chain: The former because clients
support ECC anyway, all the way up to the CA. If not, then the latter
»classic« RSA-chain would be used.
• Additionally, it enables you to purchase from more than one CA —
which is good if a visitor with a recent browser doesn't want to trust
a CA anymore.

I would disable OCSP for now in such cases and implement it later.

--
Mark

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Subject Author Views Posted

[PATCH] RSA+DSA+ECC bundles

Rob Stradling 1254 October 17, 2013 10:10AM

Re: [PATCH] RSA+DSA+ECC bundles

Maxim Dounin 435 October 17, 2013 11:20AM

Re: [PATCH] RSA+DSA+ECC bundles

Piotr Sikora 429 October 17, 2013 06:02PM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 396 October 18, 2013 07:08PM

Re: [PATCH] RSA+DSA+ECC bundles

Maxim Dounin 482 October 19, 2013 06:16AM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 465 October 21, 2013 05:42PM

Re: [PATCH] RSA+DSA+ECC bundles

Maxim Dounin 423 October 22, 2013 08:10AM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 364 October 22, 2013 09:32AM

Re: [PATCH] RSA+DSA+ECC bundles

Maxim Dounin 431 October 22, 2013 08:26PM

Re: [PATCH] RSA+DSA+ECC bundles

W-Mark Kubacki 457 October 23, 2013 01:08PM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 389 October 23, 2013 03:14PM

Re: [PATCH] RSA+DSA+ECC bundles

Piotr Sikora 427 October 23, 2013 05:50PM

Re: [PATCH] RSA+DSA+ECC bundles

Maxim Dounin 419 October 23, 2013 08:28PM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 397 October 31, 2013 05:00PM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 653 October 31, 2013 06:00PM

Re: [PATCH] RSA+DSA+ECC bundles

Maxim Dounin 414 November 01, 2013 06:48AM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 389 November 01, 2013 08:10AM

Re: [PATCH] RSA+DSA+ECC bundles

Maxim Dounin 475 November 01, 2013 10:26AM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 402 October 23, 2013 02:28PM

Re: [PATCH] RSA+DSA+ECC bundles

Piotr Sikora 441 October 23, 2013 05:56PM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 522 October 24, 2013 08:10AM

Re: [PATCH] RSA+DSA+ECC bundles

Rob Stradling 428 October 18, 2013 06:52PM



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