SBCA Conditional Access & Encryption 2

Question 1

What is a Conditional Access Module (CAM) used for in a DVB receiver with a Common Interface (CI) slot?

Accepted Answer

To house the CAS-specific decryption logic and smart card for a particular operator

Answer

A CAM plugs into the CI slot of a DVB receiver and contains the operator-specific decryption hardware and smart card reader, allowing a generic receiver to work with multiple CAS providers.

Question 2

In a SimulCrypt environment, what does the headend broadcast?

Accepted Answer

The same content scrambled with multiple CAS systems simultaneously

Answer

SimulCrypt allows a single broadcast stream to be protected by multiple CAS providers simultaneously, so subscribers with different smart cards can all access the same content.

Question 3

What does the term 'pairing' refer to in a satellite CAS security context?

Accepted Answer

Cryptographically binding a smart card to a specific receiver to prevent card sharing

Answer

Pairing ties a smart card to a unique receiver identifier so the card will only function in that specific IRD, making card sharing ineffective.

Question 4

What is 'card sharing' (also called IKS – Internet Key Sharing) and why is it considered illegal?

Accepted Answer

Sharing decrypted Control Words over the internet so unauthorized receivers can descramble pay-TV content

Answer

Card sharing involves one legitimate smart card decrypting ECMs and distributing the resulting Control Words over the internet to many unauthorized receivers, constituting signal theft.

Question 5

Which encryption standard is used in the BISS (Basic Interoperable Scrambling System) protocol common in satellite contribution feeds?

Accepted Answer

DVB-CSA with a manually configured static session word

Answer

BISS uses DVB-CSA scrambling with a fixed 'session word' configured manually at both ends, making it simple but suitable for point-to-point contribution links.

(SBCA) Satellite Broadcasting and Communications Association Certification Practice Test

(SBCA) Satellite Broadcasting and Communications Association Certification Practice Test

SBCA Conditional Access & Encryption 2