Newtec M6100 - Changing Keys Seamlessly; Removing a Receiver from the Network; Setting up a Secure BISS Network

Newtec Proprietary
Confidentiality: Unrestricted
V1.4
202/225
Features Descriptions M6100 Broadcast Satellite Modulator
• Select the scrambling Mode (could be done at any step before):
• Standard
• Raw
• Enable Scrambling (select ON)
• The scrambler uses the odd session word.
12.11.7.3 Changing Keys Seamlessly
Starting Point: Scrambling is enabled and sends scrambled transport streams to the receiver. The
odd session word is active.
Steps:
• Enter the encrypted even session word in the decrypt or;
• The even session word is computed by the decryptor and available for use;
• Set the key parity to even;
• The scrambler uses the even session word (this is indicated in the header of the TS packets, this
to inform the receiver of the switchover).
12.11.7.4 Removing a Receiver from the Network
Starting point: the scrambler sends scrambled data to the descramblers. The odd key is active. All
have their scrambling mode set to “Scramble/descramble” mode.
Steps:
1. Define a new Session Word;
2. The Session Word is entered in the descramblers (even key), except the one removed from the
network;
3. The Session Word is entered in the scrambler (even key);
4. The scrambler is asked to switch to the even key.
12.11.7.5 Setting up a Secure BISS Network
Starting point: A scrambler and a set of descramblers in a secured facility (or in secured facilities).
Steps:
1. Define an Injected ID;
2. Insert the Injected ID in all devices by a trusted person/system;
3. Deploy the devices;
4. Sets the key for a transmission, sending Encrypted Session Words rather than Session Words.