[Smcwg-public] Informal poll on ECC

Ben Wilson bwilson at mozilla.com
Wed Oct 27 20:13:48 UTC 2021


Thanks, Stephen.  I've forwarded this to our Thunderbird team.

On Wed, Oct 27, 2021 at 12:08 PM Stephen Davidson via Smcwg-public <
smcwg-public at cabforum.org> wrote:

>
>    - Only 16 CAs responded to the informal poll regarding the use of ECC.
>    - 6 of the 16 CAs currently issue end-entity S/MIME certificates
>    containing ECC public keys (although a majority indicated plans to do so).
>    - Of those CAs who currently issue ECC S/MIME, the following curves
>    were supported:
>       - 6 CAs support ECDSA P-256
>       - 5 CAs support ECDSA P-384
>       - 3 CAs support ECDSA P-521
>       - Other: 1 CA supports Brainpool
>    - No CAs reported current support for the Royal-Holloway key escrow
>    scheme (keyUsages of encipherOnly and decipherOnly).
>
>
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