Basic Operation
The security of conditional access smartcard technology is limited by the security of the DVB standard in which it operates. The standard practice of a legitimate smart card is to decrypt an ECM (Entitlement Control Message), which then provides the control word, which allows the viewing of scrambled material. With card sharing, however, the smart card and its security features are bypassed; software intercepts the decrypted control word and allows the user to share it across a computer network.
Read more about this topic: Card Sharing
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