[cabfcert_policy] CA vs. CA draft proposal

Ben Wilson ben.wilson at digicert.com
Thu Mar 24 06:57:54 MST 2016


Thanks!  Let's discuss today.

-----Original Message-----
From: policyreview-bounces at cabforum.org
[mailto:policyreview-bounces at cabforum.org] On Behalf Of Peter Bowen
Sent: Thursday, March 24, 2016 7:43 AM
To: policyreview at cabforum.org
Subject: [cabfcert_policy] CA vs. CA draft proposal

New Definitions:

Certificate Issuer (CI): An issuer of Certificates defined by a distinct
Distinguished Name and Public Key

CI Certificate: A Certificate for which any of the following are true:
- A Basic Constraints extension is present and the cA component is set to
TRUE
- A Key Usage extension is present and the keyCertSign bit is set

CI Key Pair: A Key Pair which has its Public Key included in a CI
Certificate

Cross-Certificate: A CI certificate which is not a Self-Issued CI
Certificate

End-entity Certificate: A Certificate which is not a CI Certificate

Root CI: A CI which is distributed by Application Software Suppliers as a
trust anchor

Root CI Key Pair: A CI Key Pair which has its Public Key included in a Root
Certificate

Root CI Certificate:  A CI Certificate which contains the Public Key from a
Root CI Key Pair

Self-Issued CI Certificate: A CI Certificate where the subject and issuer
Distinguished Names match

Technically Constrained CI Certificate: A CI certificate which uses a
combination of Extended Key Usage settings and Name Constraint settings to
limit the scope within which CI may issue Subscriber or additional CI
Certificates.

Modifications:

In section 3.1.5, insert the following text:

Each CI Public Key MUST be associated with a single distinct Distinguished
Name.  Each CI Distinguished Name MUST be associated with a single unique
Public Key.

In section 4.3.1, append the following text:

A CA shall only issue a Self-Issued CI Certificate when the Private Key used
by the CA to sign the Certificate corresponds to the Public Key that is
certified within the Certificate.

<more to change CA to CI where appropriate>
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