System and method for limiting access to data

A controlling device provides conditional access to secured content renderable by an appliance. The controlling device transmits a data frame to the appliance and encrypts at least a part of the data frame that includes data to be used by the appliance to provide access to the secured content. At th...

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Bibliographic Details
Main Authors ARLING PAUL D, CHAMBERS CHRISTOPHER ALAN, HAYES PATRICK H, SCOTT WAYNE
Format Patent
LanguageEnglish
Published 28.08.2012
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
JAMMING OF COMMUNICATION
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SECRET COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A controlling device provides conditional access to secured content renderable by an appliance. The controlling device transmits a data frame to the appliance and encrypts at least a part of the data frame that includes data to be used by the appliance to provide access to the secured content. At the appliance a decryption key complimentary to the encryption key is used to decrypt the received the data frame. The appliance allows the secured content to be rendered only after the appliance determines that the data in the received, decrypted data frame includes the data the appliance requires to provide access to the secured content.
Bibliography:Application Number: US20050103301