DigiCAP Cable&IPTV Scrambler is a digital broadcasting content (Video/Audio/Data) protection product. It
protects and manages the interests of Cable&IPTV or mobile IPTV service providers as well as the rights of
consumers.

DigiCAP Cable&IPTV Scrambler scrambles/encrypts broadcasting contents received from encoder in IPTV
multicasting environment. On processing, it receives ECM (Entitlement Control Message) and EMM (Entitlement
Management Message) from CAS (Conditional Access System) and provides support in transmitting them with
broadcasting contents. DigiCAP Cable&IPTV Scrambler includes function of SCS (SimulCrypt Synchronizer), CWG
(CW Generator) and Scrambler that defined as Head-end components in DVB SimulCrypt standard. It provides
part of Mux function for integration between CAS and EMMG.

Main Features

• High security protection and applicable to various IPTV services by IPSec and SRTP protocol support

• Easy portability that enables to support multi CAS by following DVB SimulCrypt standard

• Stream error correction during the input-output process of video/audio/data
  - Using AL-FEC (Application Layer Forward Error Correction) to recover transmission process error

• Processing overhead reduction of device descrambling with full and partial scrambling
  - Full scrambling that encrypts all of individual MPEG-2 TS stream and partial scrambling function that transmits partially scrambled TS of MPEG-2 TS stream
  - Partial scrambling helps to reduce processing overhead of descrambling by setting up the scrambling range from 1 to 50% by operators

• Provides Bypass Mode and CA Mode Transition function

• Enables to set up broadcast schedule through Scrambling Control Group (SCG) on CA Mode
  - Broadcast schedule based on specific period of time or specific group of people, it could be on hourly, daily, weekly basis

• Remote configuration & monitoring through System Configuration Manager GUI Program (W indows)

Main Function
DigiCAP IPTV Scrambler provides 3 types of scrambler: MPEG-2 TS Scrambler in IPTV , SRTP (Secure Real-time Transport
Protocol) Scrambler in mobile IPTV and IPSec Scrambler

Specification

Product Specification

Support for DigiCAP DMB Scrambler

• ETSI TS 103 197, DVB SimulCrypt
• IETF RFC 3711, The Secure Real-Time Transport Protocol (SRTP)
• IETF RFC 2401, Security Architecture for the Internet Protocol
• IETF RFC 2406, IP Encapsulating Security Payload (ESP)