What is Card sharing

[shamshad]

Card sharing, also known as control word sharing, is a method of allowing multiple clients or digital television receivers to access a subscription television network with only one valid subscription card. This is achieved by electronically sharing a part of the legitimate conditional access smart card’s output data, enabling all recipients to gain simultaneous access to scrambledDVB streams, held on the encrypted television network.

Typically, a legitimate smart card is attached to a host digital television receiver, which is equipped with software to share the decrypted 64-bit « control word » key over a computer network, such as the Internet. Once a client receives this key, they can decrypt the encrypted content as though they were using their own subscription card.

[suleman84]