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Page 4-96 Instruction Manual: evolution 5000 E57xx DSNG and DENG Voyager Encoder
ST.TM.E10076.3
To access the BISS
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Key Entry option, press the BISS Key Entry softkey
in the Mux Menu. This enables the scrambling key used in BISS Key Entry
scrambling mode to be set (see the Scramble Option). The same
scrambling code must be used at the receive end to unscramble the
transmission.
For Mode 1, enter a 12 digit code using the keypad, then press the Enter
softkey to enter the scrambling code.
Session Word Option
To access the Session Word option, press the Session Word softkey in
the Mux Menu. A Session Word is the 48-bit code used to generate the
64-bit Control Word that is used to encrypt and decrypt the transport
stream.
The sender and receiver(s) of the transmission share the Session Word, so
that only the intended parties receive the transmission. The same Session
Word must be used at the receive end.
If the Session Words are the same, then the IRDs are able to decrypt the
broadcast. If the Session Words are different, the broadcast is not
received.
NOTE…
Take precautions to avoid general knowledge of the Session Word.
The Session Word relates to the different types of BISS as follows:
· BISS Mode 1: All components are scrambled by a fixed control word,
derived from a clear Session Word.
· BISS-E: All components are scrambled by a fixed control word,
derived from an Encrypted Session Word.
Enc Session Word Option
To access the Enc Session Word option, press the Enc Session Word
softkey in the Mux Menu. This is used with BISS-E. An Enc(rypted) Session
Word is a 64-bit number that is transformed by the Encoder into a Session
Word used to encrypt and decrypt the transport stream.
NOTE…
Take precautions to avoid general knowledge of the Encrypted Session Word.
BISS-E Injected Id Option
To access the BISS-E Injected Id option, press the BISS-E Injected Id
softkey in the Mux Menu. This is only used with BISS-E and is an identifier
for the unit, comprising a 56-bit hexadecimal word.
NOTE…
Take precautions to avoid general knowledge of the BISS-E Injected Id.
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BISS is implemented according to EBU Tech 3292 May 2002.