Re: Mozilla's Expectations for OCSP Incident Reporting

2020-05-15 Thread Tom Delmas via dev-security-policy
Browsers by default just ignore any OCSP error. So while the browser 
might have seen an error getting the OCSP reply, the user is not aware 
of it.


And why Browsers do ignore OCSP errors? Because some CA don't take OCSP 
errors seriously.


So yes, it has an impact: it comfort Browsers in that situation, which 
is less than ideal, because it impacts the security of *all* users.



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Re: Possible violation of CAA by nazwa.pl

2018-07-26 Thread Tom Delmas via dev-security-policy



> The party actually running the authoritative DNS servers is in 
control of the domain.


I'm not sure I agree. They can control the domain, but they are supposed 
to be subordinate of the domain owner. If they did something without the 
owner consent/approval, it really looks like a domain hijacking.


> I'm not suggesting that the CA did anything untoward in issuing this
> certificate.  I am not suggesting that at all.

My opinion is that if the CA was aware that the owner didn't ask/consent 
to that issuance, If it's not a misissuance according to the BRs, it 
should be.

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Submission to ct-logs of the final certificate when there is already a pre-certificate

2018-04-02 Thread Tom Delmas via dev-security-policy
Following the discussion on 
https://community.letsencrypt.org/t/non-logging-of-final-certificates/58394


What is the position of Mozilla about the submission to ct-logs of the 
final certificate when there is already a pre-certificate?


As it helps discover bugs ( 
https://twitter.com/_quirins/status/979788044994834434 ), it helps 
accountability of CAs and it's easily enforceable, I feel that it should 
be mandatory.



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