On 22/09/15 05:07, Kathleen Wilson wrote:
> First, we need to determine if the Email trust bit should remain part of
> Mozilla's CA Certificate Policy.

One perhaps somewhat relevant piece of information in this discussion is
whether anyone is using S/MIME. After all, if no-one is using it,
maintaining the infrastructure looks less attractive. (I realise there
are other components to this discussion, such as specifically how used
is S/MIME in those email clients which use our store.)

A major CA was kind enough to share their numbers with me. They said:

"We issued 275,000 client/smime certificates in the last year as soft
certificates – i.e. not on smart-cards/tokens.

Of those:

265,000 are usable as S/MIME certificates.
10,000 didn’t have an email address in the subject and so could not have
been used for S/MIME.
13,000 included both email and identity information from an enterprise
scenario.
A few hundred were non-enterprise certificates which included both email
and identity information."

Gerv

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