Conditional access system and method

Details Conditional access system and method Conditional access system and method

2004-03-04

2009-10-27

Augustin, Evens J (Department: 3621)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C380S259000

Reexamination Certificate

active

07610486

ABSTRACT:
The present invention relates to methods of and systems for providing conditional access to electronic content. Electronic content is provided to a user along with authorization information. The electronic content may be transmitted to the user, and the user may use the authorization information to access the electronic content. An authorization code may be provided to the user such that the user may be granted access to the content based on a comparison of the provided authorization code and a second authorization code transmitted with the electronic content, and transmission of the second authorization code may be controlled by a content provider to control access by the user.

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“Functional Model of a Conditional Access System” EBU Review—Technical, European Broadcasting Union. Brussels, BE, No. 266, 1995, pp. 64-77. XP002251132 ISSN: 0251-0936.

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