Yes, that´s true, there´s no RNG at all, they are sequential numbers. Once the 
CABF has decided what to do regarding this issue we´ll change accordingly. 


Iñigo Barreira
Responsable del Área técnica
i-barre...@izenpe.eus 
945067705



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-----Mensaje original-----
De: dev-security-policy 
[mailto:dev-security-policy-bounces+i-barreira=izenpe....@lists.mozilla.org] En 
nombre de Peter Bowen
Enviado el: sábado, 30 de abril de 2016 4:50
Para: Matt Palmer
CC: mozilla-dev-security-pol...@lists.mozilla.org
Asunto: Re: Undisclosed CA certificates

On Fri, Apr 29, 2016 at 7:17 PM, Matt Palmer <mpal...@hezmatt.org> wrote:
> On Fri, Apr 29, 2016 at 05:12:28PM -0700, Peter Bowen wrote:
>> On Fri, Apr 29, 2016 at 5:03 PM, Matt Palmer <mpal...@hezmatt.org> wrote:
>> > Even more fun: what if the serial number is MD5(YYYYMMDDHHmmss)?  
>> > In that case, comparing two serial numbers makes them all *look* 
>> > awesomely random, until someone figures out "the secret", at which 
>> > point pretty much all the bits are predictable, even though there's 
>> > no "obvious" pattern from examining the serials themselves.
>>
>> What if the serial number is HMAC-MD5(SecretStaticKey, 
>> YYYYMMDDHHmmss)? Or AES encryption of the timestamp?
>>
>> This is why there are human auditors.  They can ask the CA how they 
>> are generating the serial numbers.  That is the only way that this 
>> can every be verified.
>
> Yes, that's my point.  It is entirely pointless to examine the 
> sausages once they're sitting on the shelf.

Think about it more like home inspectors.  The can tell you if something is 
wrong but cannot guarantee it is right.

https://crt.sh/?Identity=%25&iCAID=535 is an example of either the worst RNG 
ever or not using a RNG.  I'd say that is wrong.
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