| Conditional access | |
|---|---|
| DVB | |
| Smart cards and encryption | BISS · Conax · Cryptoworks · Digicipher · Irdeto · KeyFly · Nagravision · NDS · Videoguard · PowerVu · RAS · SECA Mediaguard · Viaccess · Wegener |
| DRM | |
| Data security | |
| Analogue broadcast encoding | |
See also free to view and pay television | |