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Conditional Access Module Various types of CAM. A conditional access module (CAM) is an electronic device, usually incorporating a slot for a smart card, which equips an integrated digital television or set-top box with the appropriate hardware facility to view conditional access content that has been encrypted using a conditional access system. [1]
Conditional access (CA) is a term commonly used in relation to software and to digital television systems. Conditional access is an evaluation to ensure the person who is seeking access to content is authorized to access the content. Access is managed by requiring certain criteria to be met before granting access to the content.
The Common Interface allows TV manufacturers to support many different pay TV stations, by allowing to plug in exchangeable conditional-access modules (CAM) for various encryption schemes. The Common Interface is the connection between the TV tuner (TV or set-top box) and the module that decrypts the TV signal (CAM). This module, in turn, then ...
Analog and digital pay television have several conditional access systems that are used for pay-per-view (PPV) and other subscriber related services. Originally, analog-only cable television systems relied on set-top boxes to control access to programming, as television sets originally were not "cable-ready". Analog encryption was typically ...
The basic purpose of DCAS was to implement DRM protection in software, supported by future OCAP-compliant consumer devices such as digital televisions, DVRs, and set-top boxes (still required to support legacy non-OCAP-compliant devices). This would secure the information transmitted in the link between the cable company and the consumer device.
VideoGuard (sometimes referred to simply as NDS), produced by NDS, is a digital encryption system for use with conditional access television broadcasting. It is used on digital satellite television systems – some of which are operated by News Corporation, which owned about half (49%) of NDS until its sale to Cisco in 2012 (becoming Cisco Videoscape division). [1]
The physical CableCARD inserted into the host device is a PC Card type II that handles decryption of video and ensures that only authorized subscribers may view it. This is also known as a "conditional-access module" function. There are two kinds of physical CableCARDs: A "single-stream" CableCARD (S-CARD) can decode a single channel at a time.
The Conditional Access Convention, formally the European Convention on the Legal Protection of Services based on, or consisting of, Conditional Access is a convention of the Council of Europe, which requires its parties to make pieces of software that circumvent paywalls for television and radio programmes as well as "information society services". [1]