Another +1 for RFC4211/4210; my company's certificate issuance platform has 
supported CMP/CMRF for many years and we have several large customers using it 
for LTE applications as Tomas described below.

-----Original Message-----
From: Trans [mailto:[email protected]] On Behalf Of Tomas Gustavsson
Sent: Wednesday, February 26, 2014 10:02 AM
To: [email protected]
Subject: Re: [Trans] Alternate formats for Precertificates


On 02/26/2014 07:30 AM, Ben Laurie wrote:
> On 26 February 2014 14:13, Tomas Gustavsson <[email protected]> wrote:
>>
>> Did anyone consider using RFC4211 CRMF requests as "pre-certificates"?
>> CRMF has both issuer and serialNumber, as well as extensions. The 
>> CertTemplate of RFC4211 is basically a TBSCertificate.
>
> Hmm. So it is. I had not come across this RFC before.
>
> Does anything implement it?

Absolutely. It is used in CMP (RFC4210). EJBCA has had support for it as a 
request format for years, so we have code for both producing and parsing of 
course.

BouncyCastle has Java APIs for CMP/CRMF.
http://www.bouncycastle.org/

cmpforopenssl supports it I believe, C API and command line.
http://sourceforge.net/apps/mediawiki/cmpforopenssl/index.php?title=Main_Page

I don't know why I did not think of this earlier, since I use it all the time. 
CMP with CRMF is used in many systems in production. Card management, LTE base 
stations (3GPP standardization), some routers etc.

Re-using existing RFC always feels good :-)

Cheers,
Tomas

>
>>
>> Cheers,
>> Tomas
>>
>> PS: time to change subject of the thread?
>>
>>
>> On 02/26/2014 05:46 AM, Rob Stradling wrote:
>>> On 26/02/14 13:33, Carl Wallace wrote:
>>>>>>
>>>>>> While I agree that lack of a CA certificate with the matching 
>>>>>> naming really doesn¹t matter, breaking name chaining seems like 
>>>>>> an odd way to maintain ³ritual compliance".  Why not bump the version 
>>>>>> number instead?
>>>>>> v4 could be defined as a pre-certificate containing a poison 
>>>>>> extension and a serial number that matches its v3 counterpart.
>>>>>
>>>>> Hi Carl.  I briefly discussed the idea of changing the version 
>>>>> number with Ben a few months ago...
>>>>
>>>> Sorry for the rehash.  There are occasions where I miss an email in 
>>>> this
>>>> list:-)
>>>
>>> No need to apologize.  It was an off-list discussion.  :-)
>>>
>>
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