Newtec AZ110 - Generating Encrypted Content Keys

Features
User Manual for AZ110 Broadcast Satellite Modulator with ASI interface
version 3.2
93
SHAPING THE FUTURE SATELLITE OF COMMUNICATIONS
8.3.4 Generating Encrypted Content Keys
Newtec distributes a simple web-based java script to compute
encrypted keys for a specific device.
Use the Newtec Service Desk tool to receive a copy:
> Browse to http://customersupport.newtec.eu .
> Fill in your Username and Password
> Create a ticket
As response of your request you will receive the script from our
support team.
In case you don't have a Username and Password yet for the
Newtec Service Desk tool: request a login to
customersupport@newtec.eu.
In the section below, all keys or data are represented in
hexadecimal. For the algorithms, they are represented with the
most significant byte (bit) first.
8.3.4.1 128-bit Keys
The computation of the encrypted content key from a given content key is depicted
in the following figure.
AES
Encryp
Encrypted
Content Key
Group Key
Content Key
128 bits
128 bits
128
bits
Key
Data in
Data out
Figure 51 - Process to Encrypt a Content Key with a Specific Group Key in 128 bit Mode
The following lines provide a few examples of key computations for reference:
Example 1:
Content Key: e81816b87e5cf9c4e81816b87e5cf9c4