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METHOD AND APPARATUS FOR STORING AND RETRIEVING ENCRYPTED PROGRAMMING CONTENT SUCH THAT IT IS ACCESSIBLE TO AUTHORIZED USERS FROM MULTIPLE SET TOP BOXES
METHOD AND APPARATUS FOR STORING AND RETRIEVING ENCRYPTED PROGRAMMING CONTENT SUCH THAT IT IS ACCESSIBLE TO AUTHORIZED USERS FROM MULTIPLE SET TOP BOXES
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机译:用于存储和检索加密的编程内容的方法和装置,以使授权用户可以从多个机顶盒中访问它们
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摘要
A set top box is provided that includes a receiver/tuner for receiving programming content over a broadband communications network, a secure memory configured to store at least a first cryptography key to be used to encrypt and decrypt the programming content, and a digital storage medium for storing encrypted programming content. The set top box also includes a multimedia processor operationally associated with the receiver/tuner, the secure memory, and the digital storage medium. The multimedia processor is configured to: encrypt programming content using the first cryptography key stored in the secure memory and uniquely associated with the set top box; store the encrypted content on the digital storage medium; encrypt the first cryptography key using an asymmetric public encryption key to form an encrypted first cryptography key; and store the encrypted first cryptography key on the digital storage medium.
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