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Intelevision encryption,Cryptoworks is aDVBconditional access system, developed byPhilips CryptoTec but now belonging toIrdeto.
Cryptoworks is used by the following pay TV providers:
It is also used to encrypt some feeds tocable television head-ends.
In 2006, Cryptoworks was transferred to Irdeto.[1]
Other conditional access systems include Irdeto,VideoGuard,Nagravision,Mediaguard