Were CSA to be broken, encrypted DVB transmissions would be decipherable, regardless of any proprietary conditional access (CA) system used. This could seriously compromise paid digital television services, as DVB has been standardised on for
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in Europe and elsewhere, and is used by many satellite television providers.
Most attacks on the pay-TV system have not targeted CSA itself, but instead the various
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systems responsible for
generating the CSA keys (
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, Irdeto,
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, etc.); either by reverse-engineering and breaking the algorithms altogether, or by intercepting the keys in real-time as they are generated on a legitimate decoder, and then distributing them to others (so-called
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).
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