All,

I have been receiving questions about the following items in the CA/Browser 
Forum Baseline Requirements, and I would appreciate your input on what the 
answers are or should be.

== In the Baseline Requirements ==

Definitions:

Certificate Problem Report: Complaint of suspected Key Compromise, Certificate 
misuse, or other types of fraud, compromise, misuse, or inappropriate conduct 
related to Certificates.

High Risk Certificate Request: A Request that the CA flags for additional 
scrutiny by reference to internal criteria and databases maintained by the CA, 
which may include names at higher risk for phishing or other fraudulent usage, 
names contained in previously rejected certificate requests or revoked 
Certificates, names listed on the Miller Smiles phishing list or the Google 
Safe Browsing list, or names that the CA identifies using its own 
risk‐mitigation criteria.

Section 4.2.1:
The CA SHALL develop, maintain, and implement documented procedures that 
identify and require additional verification activity for High Risk Certificate 
Requests prior to the Certificate’s approval, as reasonably necessary to ensure 
that such requests are properly verified under these Requirements.

Section 4.9.1.1:
The CA SHALL revoke a Certificate within 24 hours if one or more of the 
following occurs:
…  4. The CA obtains evidence that the Certificate was misused;

Section 4.9.2:
Additionally, Subscribers, Relying Parties, Application Software Suppliers, and 
other third parties may submit Certificate Problem Reports informing the 
issuing CA of reasonable cause to revoke the certificate.

Section 4.9.5:
The CA SHALL begin investigation of a Certificate Problem Report within 
twenty-four hours of receipt, and decide whether revocation or other 
appropriate action is warranted based on at least the following criteria:
1. The nature of the alleged problem;
2. The number of Certificate Problem Reports received about a particular 
Certificate or Subscriber;
3. The entity making the complaint (for example, a complaint from a law 
enforcement official that a Web site is engaged in illegal activities should 
carry more weight than a complaint from a consumer alleging that she didn’t 
receive the goods she ordered); and
4. Relevant legislation.

Section 4.10.2:
The CA SHALL maintain a continuous 24x7 ability to respond internally to a 
high-priority Certificate Problem Report, and where appropriate, forward such a 
complaint to law  enforcement authorities, and/or revoke a Certificate that is 
the subject of such a complaint.

== Questions ==
1) What does "Certificate misuse, or other types of fraud" in the definition of 
Certificate Problem Report actually mean?
2) What does "misused" mean in Section 4.9.1.1?
3) If a website is using its SSL certificate to mask injection of malware and 
evidence of that is presented to the issuing CA, is that sufficient misuse for 
the CA to be required to revoke the certificate?
4) Does a website who is known to an issuing CA to inject malware count as high 
risk?
5) Are CAs required to maintain a list/database to prevent issuance of SSL 
certificates for websites that are known to them to inject malware?
==

As always, I will appreciate your thoughtful and constructive input on these 
questions.

Thanks,
Kathleen










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