Problems in creating config files in iPCU for MDM server

Problems in creating config files in iPCU for MDM server

I'm in early stage building an MDM server and I have encountered some
issues in using iPCU to create a mdm certificate. Appreciate your help.
The most important problems are I don't know where to find the Topic and
Identity, I have looked for a lot of solutions, it seems that I should
first create an APNS certificate and load this to Credentials (payload) in
iPCU, so I just used a previous p12 file to test (it's for a different
app, but since the apns certificate should link to an app, this is should
be fine, right?).
For topic, I know it should be like com.apple.mgmt.*, but where can I find
this?
From the doc I found, it seems the server end should be listening for a
PUT request, and when right after the installation of configuration file,
the server should get a PUT request containing the initial information
like PushMagic and DeviceToken. Since I got stuck on the config installing
part, I can't test this, so if I'm wrong on this, please give some advice.
PS: These are the documents I'm using:
http://media.blackhat.com/bh-us-11/Schuetz/BH_US_11_Schuetz_InsideAppleMDM_WP.pdf
---------------> on Page 7 setting up APNS, it says I should locate the
APNS certificate like "ASPS: uuid" in Keychain, none of my previous
certificate are like this.
http://adcdownload.apple.com//Documents/mobile_device_management_protocol/mobiledevicemanagement_121211.pdf
--------> apple's official doc, i'm wondering why I couldn't find any
updated one