Card Omniscriptum Card Sharing: Paperback, 68 pages

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 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 scrambled DVB streams, held on the encrypted television network.