On Fri, Nov 2, 2012 at 5:46 PM, Hal Finney <[email protected]> wrote:
> Okay, I've got privacyca.com working with that EK cert you sent. There
> were a couple of problems with that cert relative to the spec. The
> certicatePolicies extension is supposed to be marked critical
> (important), and is supposed to contain a string, TCPA Trusted
> Platform Module Endorsement. This is so it is marked as an Endorsement
> Crential in case they want to use the same key to issue other types of
> certificates, which would be stupid. So I've disabled that check for
> now.
>
> Also, in the SubjectDirectoryAttributes extension, there should be a
> field, supportedAlgorithms. They have it, but with the wrong OID. It's
> supposed to be 2.5.4.52, but they have 2.5.5.52. I've allowed the typo
> as an alternate.
>
> With these changes, Privacy CA returns a response. I can't do a full
> end-to-end test of course. Try it and let me know how it goes.
>
> Hal
>
>
>
> On Sat, Oct 13, 2012 at 11:56 PM, Paul Francis <[email protected]> wrote:
>>
>> Hi Hal,
>>
>> Thanks much for getting back.  Attached is the cert produced with your code
>> on my chip (ekcert), as well as a zipped file of certs provided by STM.  The
>> zipped file contains the STM root, some intermediate certs, as well as
>> examples of EK certs.  These examples should serve as well as mine.
>>
>> BTW, let me know if there is any way in which my institute can help take
>> over your server.  I'm a director at the Max Planck Institute for Software
>> Systems (mpi-sws), and can arrange to support this on a permanent basis.
>> Hosting the server itself would be trivial.  Putting together the expertise
>> to provide help to people as you do is less trivial, but I don't think we'd
>> have a problem with that.
>>
>> PF
>>
>>
>>
>> On 10/13/2012 11:21 PM, Hal Finney wrote:
>>>
>>> Thanks for the report. I actually added the STM root cert a few weeks
>>> ago, but I didn't have an EK cert to test it with. Evidentally there
>>> is some format difference between the two flavors of certs. Would you
>>> mind sending me your EK cert? I can see what the software doesn't like
>>> about it.
>>>
>>> As far as other services, the Trusted Java project contains privacyca
>>> functionality. But I don't know if anyone is running a public server.
>>> I am actually looking for someone to take over my own server, due to
>>> illness. I've been talking to Jon McCune about it, but maybe a
>>> commercial interest would be an alternative.
>>>
>>> Hal
>>>
>>>
>>> On Thu, Oct 11, 2012 at 5:02 AM, Paul Francis <[email protected]> wrote:
>>>>
>>>>
>>>> Hi all,
>>>>
>>>> I'm doing some development on a project that requires an AIK cert.  It so
>>>> happens that the machine I'm working on has a TPM from ST.  This TPM
>>>> contains an
>>>> EKCert that ST certifies with GlobalSign as the root.  (You can download
>>>> the
>>>> certs here if you are interested:)
>>>>
>>>> http://www.st.com/stonline/stappl/resourceSelector/app?
>>>> page=resourceSelector&doctype=CONFIGURATION_UTILITY&SubClassID=1522
>>>>
>>>> Because privacyca.com only claims to work with Infineon, I didn't really
>>>> expect
>>>> to be able to get an AIK cert, but on a lark I tried, and sure enough:
>>>>
>>>> ./identity testprivacyca outkeyblobfile outcertfile
>>>> Retrieving PCA certificate...
>>>> Generating identity key...
>>>> Sending request to PrivacyCA.com...
>>>> Processing response...
>>>> Bad response from PrivacyCA.com: Operation failed: Error in endorsement
>>>> cert
>>>> provided in cert-request
>>>> /level1©
>>>> make: *** [remote] Error 1
>>>>
>>>> Now I'm more than happy to buy a box with the Infineon TPM, and probably
>>>> would
>>>> anyway just for the experience, but I'm wondering if there is any chance
>>>> that
>>>> Hal or someone would be willing to add ST certs to privacyca.com.
>>>>
>>>> More generally, are there any other CAs out there that act as privacy
>>>> CAs?  Our
>>>> goal is a commercial product based on this, and so in the long run
>>>> privacyca.com
>>>> probably won't serve anyway (unless there really are no other choices).
>>>>
>>>> Thanks much!
>>>>
>>>> PF (Paul Francis)
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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