Am 28.10.2016 um 15:55 schrieb Jim Dummett via DCPomatic:
I'm co-ordinating delivery of an encrypted DCP
feature made by someone else to a cinema. The filmmakers need the server cert to make a
KDM. The only information the cinema has been able to give me is "Doremi DCP-2K4
serial no. <six digit number>".
Is there any online database to look up the server cert from the serial number? I really
hope that this information is not proprietary. The clue that it shouldn't be is the
word "public" in "public key cryptography"!
Hi Jim,
you have two options - have DOM download the certificate from within the Make KDM ->
add/edit cinema->add/edit screen ->Download database window, or download it manually
from
http://www.dolbycustomer.com/cinema/Certificates . Both will simply need that six
digit number.
In general, I prefer the hard manual way to do things, but as a matter of fact, if you
download from that site, you will receive a ZIP file with many different certs for various
reasons and applications. While the automatic download in DCP-o-matic will choose just the
right one for creating a KDM for that server, so, just do that!
This of course only applies if those filmmakers are using DCP-o-matic. If not, they need
to download the certs from the mentioned site and choose either the
xxx.cert.sha256.pem or xxx.chain.sha256.pem (which one depends on their KDM management
system/software, in general, the xxx.cert256.pem is sufficient technically)
- Carsten