Journal
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
Volume 46, Issue 1, Pages 20-27Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/30.826376
Keywords
Pay-TV; conditional access system; DBS; cryptography; privacy; non-repudiation
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Privacy is becoming more and more precious in mod ern society. A viewer's TV- watching habits may reveal information about him/her that will make the viewer uncomfortable or cause him/her inconvenience. People should have the right to assert their privacy about the TV-programs they are in the habit of watching. This article will develop a practical CAS mechanism for Pay-TV systems to secure such personal privacy in watching TV-programs. Disputes about transactions are usually unavoidable and can endanger the life of any business, including commercial TV systems. In order to prevent possible disputes or settle existing disputes, Pay-TV systems need non-repudiation services to provide some evidence-digital signatures, for example-such that a fairer environment can be created. The conventional approaches for Pay-TV systems have not provided any non-repudiation services to facilitate dispute resolution. This article also intends to demonstrate the use of digital signature techniques to make Pay-TV systems fairer than before.
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