I understand the meaning of English word 'tunneling'. I would like to know: what exactly does it mean when phrases like "tunneled Nagra" or "tunneled N*S" are used.
I think multicrypting is AND-ing of encryption systems. This means receiver must support all of the systems for successful decryption. As opposed to simulcrypting, which is OR-ing.
Can you please elaborate on the tunneling part? Where can I read more about it?
The idea of a "tunnel" mean that the protocol used is a vehicle to insert nagra messages,for example, that the intended receiver must be able to understand.
The fist thing to understand is what nagra or n*s is,the way they support their communication,then understand that the encrypted message might be wrapped using different packetery outlines.
Simulcrypt means the stream is encrypted in CSA but the control words are carried by different ECM encrypted with different system.
Meaning all encryptions in the stream carry the same control words,but at the intended headend,they can use any of the different systems to decrypt.
Or a provider can sell their programming to users with different systems.
There is no concept of AND-ing,since there is only one way the video can be encrypted,meaning you cannot encrypt same video in different ways,unless you stream another of the same video stream encrypted differently,meaning 2 video pids.Or 2 different streams.
And this is the concept of multicrypt,2 or more different systems the intended receiver must be able to cope with.
The article is not confusing,is just explaining something you thought worked differently.
There is no waste of bandwidth,sometimes is just prevention measures against monopolies.(give the consumer another choice).
There is always people that think beyond our comprehension.But make sense once explained.